Operating Instructions ™ Anesthesia System A N E S T H E S I A S YS T E M...
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Operating Instructions ™ Anesthesia System A N E S T H E S I A S YS T E M...
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OPTIMIZER® is a registered trademark of Mindray DS USA, Inc. Selectatec® is a registered trademark of Ohmeda. Copyright . Mindray DS USA, Inc., 2013 to 2016. All rights reserved. Contents of this publication may not be reproduced in any form without permission of Mindray DS USA, Inc.
Filling and Draining the Vaporizer ................................2 - 7 Install the Suction Canister .......................................2 - 8 Turn On the Vacuum Regulator ...................................2 - 9 Turn Off the Negative Pressure Suction Device .............................2 - 9 System Interface ..............................3 - 1 Main Screen Components......................................3 - 2 A7™ Operating Instructions 046-004667-00...
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Automatic Circuit Leak and Compliance Test ............................4 - 8 Manual Circuit Leak Test ....................................4 - 13 Automatic Backup Flow Control Test................................. 4 - 16 Preoperative Check List (software bundle version 02.09.00 and later)....................4 - 18 046-004667-00 A7™ Operating Instructions...
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Inspect the Active AGSS......................................4 - 30 Inspect the Negative Pressure Suction Device ............................... 4 - 30 Operations................................5 - 1 Powering On the A7 Anesthesia System ................................5 - 2 Powering Off the A7 Anesthesia System ................................5 - 2 Patient Setup..........................................5 - 3 End Case / Standby Mode ....................................5 - 3...
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Prompt Messages ......................................6 - 28 Prompt Messages Displayed in Alarm Area ..........................6 - 28 Prompt Messages Displayed in Pop-up Area ........................... 6 - 29 Maintenance ...............................7 - 1 Theory of Operation ........................................7 - 3 046-004667-00 A7™ Operating Instructions...
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Stability Configurations and Conditions................................9 - 5 Environmental Specifications ....................................9 - 6 Electrical Specifications......................................9 - 6 Main Electrical Power Specifications ................................9 - 6 Battery Power Specifications..................................9 - 6 Auxiliary Electrical Outlets....................................9 - 7 Communication Ports......................................9 - 7 A7™ Operating Instructions 046-004667-00...
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Unidirectional Valve Opening Pressure..............................9 - 24 Data Storage (Non-Volatile) and Recording ..............................9 - 24 Response Time of the A7 to an Increase in O2 Concentration (From 21% to 90%/100%) ............. 9 - 25 Electromagnetic Compatibility .................................... 9 - 26 Accessories ................................A - 1...
The A7 is not suitable for use in an MRI environment. Responsibilities of Operators The proper function of the A7 System can only be guaranteed if it is operated and serviced in accordance with the information provided in this manual and by an authorized Mindray service representative.
Do not connect other equipment to these outlets, as patient leakage current may be affected. Each outlet is rated 3 A; the total current that may be drawn through all outlets is 10A on the A7 System; do not attempt to exceed these load ratings. Do not connect additional Multiple Portable Socket Outlets (i.e.
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Use only non-flammable anesthetic agents that meet the requirements specified in ISO 80601-2-13. Use the A7 Anesthesia System with halothane, enflurane, isoflurane, sevoflurane, and desflurane. Only use one anesthetic agent at a time.
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A hazard can exist if different alarm presets are used for the same or similar equipment in any single area. WARNING: Due to the size and weight of the A7, it should only be moved by qualified personnel. WARNING: Overloading the machine may cause tipping. Equipment attached to the side of the machine should fall within the rated weights to prevent machine tipping.
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WARNING: If the A7 is damaged in any way that compromises the safety of the patient or user, discontinue use and attach a visible tag that marks the A7 as unusable. Call Mindray Technical Support.
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WARNING: Do not use a malfunctioning A7 Anesthesia System. Have all repairs and service done by an authorized service representative. WARNING: Use a cleaning and disinfection schedule that conforms to your institution's disinfection and risk-management policies.
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WARNING: The A7 or its components should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the A7 or its components should be observed to verify normal operation in the configuration in which it will be used.
CAUTION: The A7 Anesthesia System may become unstable if the unit is tilted beyond 10 degrees. Use extreme caution when moving or resting the unit on surfaces exceeding a 10 degree slope. Do not hang articles on the sides of the unit that would cause an excessive imbalance.
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/Air Flow Meters. Unknown oxygen concentrations may be delivered to the patient unless oxygen monitoring is used. CAUTION: The A7 is NOT suitable for use in a magnetic resonance imaging (MRI) environment. CAUTION: To ensure measurement accuracy and to avoid possible damage to the A7, use only Mindray-approved cables and accessories.
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CAUTION: Do not use any flow outlets as handles for moving the A7. The flow outlets may become damaged. Use the metal side bars on the main body when moving the A7.
This manual describes all features and options. Your equipment may not have all of them. NOTE: The A7 is intended to be operated with its integral Breathing Pressure monitoring in use. NOTE: The A7 is intended to be operated with its integral Breathing Pressure limitation devices in use.
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Mindray. Then test the unit to ensure that it complies with the manufacturer’s published specifications. NOTE: The A7 can be equipped with one scavenger system to provide the best match with the hospital’s waste-gas disposal system. The scavenger system shall comply with ISO 80601-2-13. NOTE: The A7 can be campatible with O2, N2O, air, halothane, enflurane, isoflurane, sevoflurane and desflurane.
A condition of this warranty is that this equipment or any accessories which are claimed to be defective be returned when authorized, freight prepaid to Mindray DS USA, Inc., Mahwah, New Jersey 07430. Mindray DS USA, Inc. shall not have any responsibility in the event of loss or damage in transit. Disclaimers Product Improvements —...
Technical Support or (201) 995-7875 for assistance in determining the nearest field service location. Please include the instrument model number, the serial number (located on the back of the A7), and a description of the problem with all requests for service.
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Identifier: Gas Pipeline Connection Manufacturer Identifier: Manufacturer’s Material: Reference/Catalog Polyphenyl-sulfone Number Identifier: Material: Serial Number Polysulfone Indicator Lock/Unlock: Touchpad Direction Lock/Unlock: Manual ventilation via Lock Breathing Bag Lock/Unlock: Automatic Ventilation Unlock A7™ Operating Instructions 046-004667-00 xxiii...
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No. 60601-1, CSA Std. C22.2 (MRI) No.60601-1-8, ISO Std. 80601-2-13, ISO Std. 80601-2-55. Canister opened Canister closed Refer to instruction Maximum pressure of manual/booklet ACGO separate outlet Protection against IPX1 Warning vertically falling water drops VGA port xxiv 046-004667-00 A7™ Operating Instructions...
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AC power not connected. Battery supply has a low charge and is powering the system. Recharging High priority message recommended. AC power not connected. Battery supply not installed. Breathing System Warmer Off A7™ Operating Instructions 046-004667-00 i - xxv...
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The A7 Anesthesia System is a device intended to administer, continuously or intermittently, a general inhalation anesthetic to a patient, and to maintain a patient's ventilation. The A7 also provides for ventilatory monitoring of the patient. The anesthesia system is intended to be used in the patient environment.
• ACGO (Auxiliary Common Gas Outlet) • Electronic mixer • Access to the Standby mode when manual ventilation state is activated. • Integrating based on HL7/IHE-PCD via Ethernet; and connectivity to EMR system and Mindray Monitors via USB and/or RS-232 • Integrated suction •...
O flow is limited by the flow of O so that a safe ratio of no less than 21% oxygen can be maintained. The A7 is designed to maintain oxygen flow at its previously set level when N O is decreased.
NOTE: Operating the A7 with a full water trap in the breathing system block does not allow the water to condense appropriately. The trap should be removed and emptied when filled with water.
Active Anesthetic Gas Scavenging System (AGSS) The A7 includes a waste gas scavenger that attaches to the side rail mount on the system. The A7 provides a port for the connection of the waste line from an anesthetic gas monitor.
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When the A7 is connected to an AC power source, the battery supply is charged whether or not the A7 is turned on. In case of power failure, the A7 will automatically switch to run from the internal battery supply. When AC power source is restored within the specified time, the battery supply begins recharging, and power is switched from battery to AC automatically to ensure continuous system use.
An auxiliary work surface can be pulled out by depressing it inward when the drawer is closed. The operator of the A7 should be positioned in front of the monitor at a comfortable distance to view all displayed waveforms, text, and controls.
Yellow = medium priority, Cyan = low priority, Off = no alarm condition. LCD Touchscreen Display / See section ‘‘System Interface’’ on page 3-1 System Interface Auxiliary O /Air Flowmeters Auxiliary O /Air Flowmeters for auxiliary O /Air output A7™ Operating Instructions 046-004667-00 1 - 9...
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Wheels Casters to enable the A7 System to be moved. Casters on the A7 lock via a central brake. Work Light Located under the top shelf to illuminate the work level shelf and allow the user to read the vaporizer dial setting in a dim light room.
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Indicate the pressure at cylinder inlets for O , Air, and N Battery Charging LED Illuminated when the battery supply is charging. Handle Metal bar used to assist moving the A7 Key lock Key and lock for securing the drawers Storage Drawers Drawers (3) for storage (lockable) A7™...
3 A each (quantity 4), 10 A total (quantity 1) Mains Inlet Connects the mains power cord Exhaust Fan Forces air to cool electronics and prevent buildup of O concentration. Do not block. 1 - 12 046-004667-00 A7™ Operating Instructions...
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Additional devices up to a total maximum power of 10 amps can be connected to four (4) outlets. The A7 outlets are covered with two (2) metal plates, and require a tool to access. Only authorized personnel can access these outlets.
Rail Mount Enables mounting of patient monitors and most standard attachment arms for other devices. Rail mounts are on both left and right sides of the A7. Module slot AG module mentioned in this manual can be inserted into the slot and identified.
Storage Drawers Drawers (3) for storage (lockable) Rail Mount Enables mounting of patient monitors and most standard attachment arms for other devices. Rail mounts are on both left and right sides of the A7. A7™ Operating Instructions 046-004667-00 1 - 15...
Top level surface Work Level Shelf Work Level surface (stainless steel) Handle Wrap-around metal bar used to assist moving the A7 device Mounting Holes Allows mounting of optional equipment to the top shelf (i.e., DPM6 and DPM7 mounting plates and kits (see section A.7 (page A-3) "Mounting Accessories").
Tidal volume (Vt) should be read exclusively from the display of the user interface. Delivered Vt is a combination of bellows displacement and fresh gas flow. The APL valve and PAW gauge numerics are for reference only. Calibrated patient airway pressure is dis- played on the user interface. A7™ Operating Instructions 046-004667-00 1 - 17...
The APL valve and PAW gauge numerics are for reference only. Calibrated patient airway pressure is dis- played on the user interface. 1.2.7 Breathing System (Left View) FIGURE 1-8 Breathing System (Left View, the Flexible Bag Arm (optional)) 1 - 18 046-004667-00 A7™ Operating Instructions...
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360°. Fixed Height Bag Arm Provides the interface for the manual ventilation bag. The height of fixed bag arm cannot be adjusted and the bag port is in a fixed direction. A7™ Operating Instructions 046-004667-00 1 - 19...
Exhaust port to the hospital’s waste gas scavenging system Inlet Port Intake for exhaust gases from the breathing system. An AGSS transfer hose connects the Inlet and AGSS ports (see FIGURE 1-3) to transfer the exhaust gases. 1 - 20 046-004667-00 A7™ Operating Instructions...
Intake for exhaust gases from the breathing system connecting with the AGSS ports. Exhaust Port Exhaust port to the hospital’s waste gas scavenging system. Manual Bag When the manual bag is inflated, it indicates that the passive AGSS is blocked. A7™ Operating Instructions 046-004667-00 1 - 21...
REG indicates that the negative pressure suction device works with the pressure adjusted through the negative pressure adjustment knob. Turn the knob counterclockwise to increase negative pressure and clockwise to decrease the negative pressure. 1 - 22 046-004667-00 A7™ Operating Instructions...
Installation Unpacking........................................2-3 Initial Setup........................................2-4 Install the Vaporizer ....................................2-5 Install the Suction Canister .................................2-8 A7™ Operating Instructions 046-004667-00 2 - 1...
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WARNING: When electrosurgical equipment is used, keep the electrosurgical leads away from the breathing system, and other parts of the A7 Anesthesia System. Keep available backup manual ventilation and a respirator with mask in case the electrosurgical equipment prevents safe use of the ventilator.
If there is NO damage and ALL tip indicators on the box exterior are intact, then sign and date the bill of lading or airway bill to indicate safe receipt of the A7. b. If there is DAMAGE or ANY of the tip indicators on the box exterior have been activated, then conditionally accept the delivery and clearly describe the damages on the bill of lading or airway bill.
Initial Setup Installation Initial Setup The initial setup of the A7 Anesthesia System must be performed by an authorized Mindray service representative. Please contact Mindray Technical Support for any additional assistance. NOTE: The A7 is intended to be operated with an external CO2 monitor complying with ISO 80601-2-55.
Installation Install the Vaporizer Install the Vaporizer CAUTION: Only use vaporizers with Selectatec Interlock Systems with the A7 unit. WARNING: Use vaporizers compliant to ISO 80601-2-13. See section A.9 (page A-4) "Vaporizers". Refer to the vaporizer manufacturer’s Instructions For Use for mounting, filling, or draining the vaporizer and other information.
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WARNING: For the A7 Anesthesia System, using or turning on more than one vaporizer simultaneously is prohibited and prevented by a mechanical interlock. Do not attempt to override this safety mechanism.
Install the vaporizers with a Selectatec interlock system that are compliant to ISO 80601-2-13 on the A7 unit. See section A.9 (page A-4) "Vaporizers". Refer to the vaporizer manufacturer’s Instructions For Use for filling or draining the vaporizer and other information.
REGULATE MODE Turn selector knob fully clockwise to the regulator mode and confirm vacuum setting before use. FULL MODE Turn selector knob fully counterclockwise to the full mode and confirm vacuum setting before use. 2 - 8 046-004667-00 A7™ Operating Instructions...
Turn Off the Negative Pressure Suction Device Switch the negative pressure suction selector to OFF to turn off the negative pressure suction device. WARNING: Keep the negative pressure suction switch in OFF status when not in use. A7™ Operating Instructions 046-004667-00 2 - 9...
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Install the Suction Canister Installation This page intentionally left blank. 2 - 10 046-004667-00 A7™ Operating Instructions...
Patient Size Displays the currently selected patient size (Adult, Pediatric, or Infant). Select to change the patient size when the A7 is in the Standby mode, Manual mode or Monitor* mode. Current Ventilation Mode Displays the current ventilation mode (VCV, SIMV-VC, PCV, SIMV-PC, PS, Manual, Bypass, ACGO, Monitor, or Standby.)
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Displays real-time agent usage per hour, cost per hour, Area flowmeter levels for O and balance gas. Waveforms/Spirometry Area Displays waveforms or spirometry. Monitored Parameter Area Displays monitored parameters. * Monitor mode is only available with the AG module. A7™ Operating Instructions 046-004667-00 3 - 3...
When the countdown timer is expired, the system will pop-up a warning dialog (see FIGURE 3-5) and provide a notification sound at the same time, The sound will repeat until the Done button is pressed. 3 - 4 046-004667-00 A7™ Operating Instructions...
Patient Size Displays the currently selected patient size (Adult, Pediatric, or Infant). Select to change the patient size when the A7 is in Standby mode, Manual mode or Monitor mode (available with the AG module) (see FIGURE 3-7). Patient Size FIGURE 3-7 Patient Size Menu 3.2.3...
The Alarm Silence icon and Alarm Silence countdown timer are displayed after selecting the Silence softkey, which indicates that all currently sounding alarms are silenced for 120 seconds (see FIGURE 3- Alarm Silence Icon FIGURE 3-9 Alarm Silence Icon 3 - 6 046-004667-00 A7™ Operating Instructions...
Daylight Savings setting has been set to Auto in the System settings (see TABLE 3-10 on page 3-42). 3. Select Accept to finalize your changes. FIGURE 3-11 Date and Time Menu A7™ Operating Instructions 046-004667-00 3 - 7...
System Interface 3.2.6 Battery Status Displays the main power supply and battery state (see FIGURE 3-12). For more information on the A7 advanced power management system, see “Power Management / Battery Supply” on page 1-6. Battery Status Icon FIGURE 3-12 Battery Status Icon...
The flowmeter numerics display a precision to two decimal digits for flows < 1 L/min and one decimal digit for flows ≥ 1 L/min. The A7 System flowmeter is electronically controlled by the Electronic Flow Control System (hereinafter referred to as EFCS).
Displays O flow Flow indicator, showing the relationship between your set flow value and the optimal value. flow Flow of balance gas FIGURE 3-16 Electronic Flow Control System in Direct Flow Control Mode 3 - 10 046-004667-00 A7™ Operating Instructions...
OPTIMIZER is defined as a range with a lower bound of "Fresh Gas Consumption" and an upper bound of "Fresh Gas Consumption + 1 L/min". Fresh gas consumption of the subject A7 depends on: • the uptake by the patient, •...
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Total fresh gas delivery is more than 1 L/min above the gas consumption (leak+uptake). EFFICIENT Green Total fresh gas delivery is efficient. NOTE: EFFICIENT does not imply clinical efficiency. Total fresh gas delivery is less than the gas consumption (leak+uptake). TABLE 3-1 Indication 3 - 12 046-004667-00 A7™ Operating Instructions...
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AG Zero Failed • External AG Module Disconnected • Incompatible AG Software Version ® OPTIMIZER Inactive FIGURE 3-20 Inactive ® OPTIMIZER NOTE: If fresh gas data is unavailable, the ® will be OPTIMIZER ineffective. A7™ Operating Instructions 046-004667-00 3 - 13...
Select End Flow Pause button to exit the Flow Pause state. • The system exits the Flow Pause state automatically when the system enters Standby mode or the BFCS is enabled. After the system exits the Flow Pause state: 3 - 14 046-004667-00 A7™ Operating Instructions...
3.3.3 Backup Flow Control System When the A7 System detects a failure related to the EFCS, then the backup flow control system (hereinafter referred to as BFCS) automatically deploys and the total flow rotameter illuminates. If the BFCS is deployed due to a failure, contact a service personnel to disable the BFCS.
If the measured value of Paw, Flow, or Volume is less than the boundary minus a margin at the end of two continuous breath cycles, the A7 System auto scales the waveform at the beginning of the next breath cycle.
Displays separate looped graphs and waveforms (See FIGURE 3-24). You can press the button (see FIGURE 3-24) to only view the spirometry loop (see FIGURE 3-25). Spirometry Tab FIGURE 3-24 Spirometry and Waveforms 3 - 18 046-004667-00 A7™ Operating Instructions...
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System Interface Spirometry Tab You can press the button (see FIGURE 3-25) to see the spirometry loop and waveforms (see FIGURE 3-24). FIGURE 3-25 Spirometry: Pressure-Volume Loop FIGURE 3-26 Spirometry: Flow-Volume Loop A7™ Operating Instructions 046-004667-00 3 - 19...
Select Loop Type to display pressure - volume loop, flow - volume loop or pressure-flow loop on the Spirometry screen. Default loop type is pressure - volume loop. Show Reference Review Loops Loop Type Save Loop FIGURE 3-28 Spirometry Softkeys: Loop Type, Show Reference, Save Loop, and Review Loops 3 - 20 046-004667-00 A7™ Operating Instructions...
NOTE: A reference loop can not be saved without first saving a baseline loop. The A7 System always makes the first saved loop as the baseline loop if no previous loops have been saved. Afterward, additional loops can be saved either as a baseline replacement or as a new reference loop.
EDITABLE FIELD COMMENT Patient ID Enter up to 30 characters per field. These fields are cleared when the case has ended or if the A7 is power cycled. First Name Last Name DOB (Date Of Birth) Enter the information from the virtual keypad. If the input is outside the accepted range, a prompt message is displayed.
Ventilation Mode Tabs Ventilation Mode Tabs Displays tabs for all ventilation modes. Each tab displays the ventilation mode and its parameters. (FIGURE 3-31 to FIGURE 3-37) A7 ventilation modes: • Volume Control Ventilation (VCV) • Synchronized Intermittent Mandatory Ventilation with VC mode (SIMV-VC) •...
System Interface Measured Values Area Measured Values Area The Measured Values area is used to display the numerical data. (FIGURE 3-38) Measured Values Area FIGURE 3-38 Measured Values Area A7™ Operating Instructions 046-004667-00 3 - 27...
System Interface System Softkeys The A7 System provides system softkeys at the bottom right of the main screen for direct access to the history menu, system setup and alarms menu, and for capturing events and silencing alarms (see FIGURE 3-39).
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BUTTON FUNCTION Moves the cursor one record back from its current position. Moves the cursor one record forward from its current position. A7™ Operating Instructions 046-004667-00 3 - 29...
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Moves the scroll to the bottom most parameter from its current position. Previous Event Moves the cursor to the previous event from its current position. Next Event Moves the cursor to the next event from its current position. TABLE 3-4 3 - 30 046-004667-00 A7™ Operating Instructions...
Every point on the curve corresponds to the parameter value at a specific time point. Graphic Trends tab displays end case event, captured event and parameter alarm event. Graphic trend data automatically displays in one minute intervals unless the zoom is selected. A7™ Operating Instructions 046-004667-00 3 - 31...
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An end case event occurred during this period. The parameter data of the time indicated by cursor. TABLE 3-5 NOTE: The Graphic Trends will be cleared after the anesthesia machine undergoes power failure or is turned off. 3 - 32 046-004667-00 A7™ Operating Instructions...
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Moves the cursor down one parameter from its current position. TABLE 3-6 3.9.5.2.3 Zoom Zoom allows the trends to be displayed in one page in a specified time interval. Set Zoom to 5Min, 10Min, 15Min, 30Min, 1Hour, or 2Hour. A7™ Operating Instructions 046-004667-00 3 - 33...
NOTE: The Event log will be cleared after the anesthesia machine undergoes a power failure or is turned off. To view event log, contact Mindray Customer Service. 3.9.5.3.1 Navigating in Event Log The dialog navigation buttons are described in TABLE 3-7.
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3.9.5.3.2 Event Log Filter The Filter button displays the Event Log Entries trends similarly to the Event type. Set Filter to High, Medium, Low, Informational or All. The A7 displays the corresponding event based on your setting. 3.9.5.3.3 Event Log Export The Export button on the Event Log tab exports the contents of the event log to a USB mass storage device.
Leak Test / Compliance The Test Leak / Compliance button enables the A7 System to perform an automatic leak test and manual leak test, and calculates the compliance for the A7.
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General Tab After cycling power, the breathing system warmer will return to the default state. NOTE: The breathing system warmer is inactive when the A7 is powered by the battery supply. Zero Flow Meters To zero the flow meters, select the Zero Flow Meters button. Follow the on-screen instructions and prompts.
2. In the Screen Brightness area, select the +/- buttons to adjust the screen brightness. 3. Select the Accept button to confirm the change, or select Cancel to discard the change. Select the buttons to adjust screen brightness. FIGURE 3-45 Display Tab > Screen Brightness Area 3 - 38 046-004667-00 A7™ Operating Instructions...
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The screen locks for 10 seconds for cleaning. Calibrate Touch To calibrate the LCD touch screen: 1. Select Setup softkey > Display tab. 2. Select the Calibrate Touch button. 3. Follow the on-screen instructions. A7™ Operating Instructions 046-004667-00 3 - 39...
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4. Select the Accept button to confirm the change, or select the Cancel button to discard the change. Gas Scales To set the Gas scales: 1. Select Setup softkey > Display tab. 2. Select the Gas Scales button. 3 - 40 046-004667-00 A7™ Operating Instructions...
1. Select Setup softkey > Display tab. 2. Select the Waveform Display button. 3. Select the desired waveform. 4. Select the Accept button to confirm the change, or select the Cancel button to discard the change. A7™ Operating Instructions 046-004667-00 3 - 41...
Select to calibrate the External AG Internal AG Module Module or Internal AG Module. Follow the screen instructions. Language ENGLISH (default) Select to set the user interface text CHINESE language. FRENCH SPANISH TABLE 3-10 System Tab Settings 3 - 42 046-004667-00 A7™ Operating Instructions...
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Select Import Defaults to import a copy of the defaults from the USB mass storage device if one has been inserted into an SB port at the rear of the A7 unit. Export Defaults Select Export Defaults to export a...
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Daylight Savings (Default Select to set the Daylight Savings Time =Manual, Auto) (DST) to be adjusted automatically by the A7 System, or manually by the authorized administrator. If the region or country of installation does not observe DST, change this setting to Manual.
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When turned off, event logs and all trends will not be deleted at the start of the case. TABLE 3-10 System Tab Settings A7™ Operating Instructions 046-004667-00 3 - 45...
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Select to set the cost of the agent per NOTE: If cost is set to zero then the cost of the agent per ml will not be displayed. TABLE 3-10 System Tab Settings 3 - 46 046-004667-00 A7™ Operating Instructions...
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Enabled when Protocol=HL7:10 Sec, 30 Sec, 1 Min (default), 5 Min, 30 Min, 1 Hour, 2 Hour, 6 Hour, 12 Hour, 24 Hour. NOTE: When Protocol is set to MR-WATO, the A7 can communicate with the patient monitor of Mindray through Benelink module of Mindray. NOTE:...
Secondary Server IP Enter: Secondary Server IP (default = 210.72.145.44) TABLE 3-11 Network Configuration Settings and Parameters 3.13 Service Tab Accessible only by Mindray-authorized service personnel. Please contact Mindray Technical Support for assistance. A7™ Operating Instructions 046-004667-00 3 - 49...
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Service Tab System Interface This page intentionally left blank. 3 - 50 046-004667-00 A7™ Operating Instructions...
Preoperative Test Schedules Preoperative Tests Preoperative Test Schedules Preoperative tests on the A7 follow the ASA guidelines and should be performed according to the test intervals listed below. Refer to special procedures or precautions in this manual. NOTE: This is a guideline which can be modified to accommodate variations in local clinical practice.
14. The AC mains indicator and the battery indicator are displayed when the power cord is connected to the AC power source. If the indicators are not displayed, the system does not have electrical power. 15. The A7 anesthesia machine is switched on or off normally. A7™ Operating Instructions 046-004667-00...
An effective method for detecting pneumatic circuit occlusions, leaks, and other system problems can be found in the A7 pre-operative checkout procedures. In addition, it is recommended that the breathing circuit be tested for the ability to effectively deliver positive pressure ventilation before beginning each case.
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O manual leak test. Set the vaporizer to OFF. Repeat for the right vaporizer if installed (see “Manual Leak Test” on page 4-24). 5. Perform a vaporizer leak test for each vaporizer installed on the A7 System (see “Vaporizer Leak Test” on page 4-24).
Preoperative Tests System Self-Test When the A7 is powered on, it performs a self-test to ensure its alarm system (alarm LED, speaker, and buzzer) and hardware (flowmeter board, ventilator board, assistant ventilator board, power board, and CPU board) are properly functioning.
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Bundle Version – The Bundle Version is displayed in all System Self-Test results. The Bundle Version is the version number of the package of software that is installed in the A7. If the Bundle Version displays a fail status, contact Mindray Technical Support.
1. From power up: While powering on the A7, the system automatically initiates a self-test and enters the Preoperative Check List screen. Select Continue to enter the Automatic Circuit Leak Test screen, followed by the Manual Circuit Leak Test screen. If the Skip button is selected, the system bypasses the Automatic Circuit Leak Test and the Manual Circuit Leak Test and enters the Standby mode.
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Auto position and when no fresh gas is detected. 3. Compare the test results with the information in TABLE 4-3, “Automatic Circuit Leak and Compliance Test Results, ” on page 4-10, and proceed accordingly. A7™ Operating Instructions 046-004667-00 4 - 9...
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Select Accept to proceed to the Manual Circuit Leak Test screen and use the previous compliance values. Select Retry to repeat the Automatic Circuit Leak Test & Compliance test. TABLE 4-3 Automatic Circuit Leak and Compliance Test Results 4 - 10 046-004667-00 A7™ Operating Instructions...
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Contact service if this error condition persists. NOTE: The Service Access button is only available to Mindray-authorized service personnel and requires a service password. TABLE 4-3 Automatic Circuit Leak and Compliance Test Results A7™ Operating Instructions 046-004667-00 4 - 11...
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Select Retry to repeat the Automatic Circuit Leak Test & Compliance test. Select Override to skip the test. Backup Flow Control Enabled For the A7 System, the backup flow control is active. Example Follow on-screen instructions to troubleshoot the problem.
1. From power up: While powering on A7, the system automatically initiates a self-test and enters the Preoperative Check List screen. Select Continue to enter the Automatic Circuit Leak and Compliance Test and theManual Circuit Leak Test. If the Skip button is selected, the system bypasses these tests and enters the Standby mode.
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Fresh gas is not detected. Follow on-screen instructions to troubleshoot the issue. Adjust APL valve to the SP position and select Accept to proceed to the main screen. TABLE 4-4 Manual Circuit Leak Test Results 4 - 14 046-004667-00 A7™ Operating Instructions...
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If this anomaly occurs, press the Cancel button on the screen to continue. Select Accept to proceed. Backup Flow Control Enabled For the A7 System, the backup flow control is active. Example Follow on-screen instructions to troubleshoot the problem.
FIGURE 4-3 Automatic Backup Flow Control Test To Perform an Automatic Backup Flow Control Test: 1. While powering on the A7, the system calculates the time between the last successful Automatic Backup Flow Control Test time and current time. If the difference between the...
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Select Continue to proceed to the main screen. Fail Automatic Backup Flow Control Test failed. Example: Select Retry to repeat the test. Select Accept to proceed without Automatic Backup Flow Control deployment. TABLE 4-5 Automatic Backup Flow Control Test A7™ Operating Instructions 046-004667-00 4 - 17...
Preoperative Check List (software bundle version 02.09.00 and later) While powering on the A7, the system automatically initiates a self-test and enters the Preoperative Check List screen. Select Continue to proceed to Standby mode. The Preoperative Check List screen is displayed in FIGURE 4-4.
4.9.1 Pipeline Test 1. Connect the O pipeline supply. 2. Close all cylinder valves if the A7 anesthesia machine is equipped with cylinders. 3. Set the system switch to the ON position. 4. Set the O flow to 6 L/min.
1. Connect the Air pipeline supply. 2. Close all cylinder valves if the A7 anesthesia machine is equipped with cylinders. 3. Set the system switch to the ON position. 4. Select Setup softkey > General tab and set the Fresh Gas Control to Direct Flow.
Cylinder Tests 4.11 Cylinder Tests NOTE: You do not need to perform cylinder tests if the A7 anesthesia machine is not equipped with cylinders. 4.11.1 Check the Cylinder Pressure 1. Set the system switch to the OFF position and connect the cylinders to be checked.
14. After checking that the BFCS is deployed, visually check the total flowmeter for basal flow of approximately 1 L/min. 15. Adjust the Air needle valve. Increase Air flow gradually and check that the total flow continues to rise to more than 10 L/min. Close the Air needle valve. 4 - 22 046-004667-00 A7™ Operating Instructions...
1 L/min through the full range. Otherwise, install a different vaporizer and repeat this step. If the problem persists, the malfunction is in the anesthesia system. Do not use this system. 5. Test each vaporizer as per the steps above. A7™ Operating Instructions 046-004667-00 4 - 23...
6. Set the APL valve to 75 and verify that the pressure on the airway pressure gauge increases above 30 cmH O within 2 minutes. 7. Turn off the vaporizer. 8. Repeat steps 4, 5, 6, and 7 for the other vaporizer. 4 - 24 046-004667-00 A7™ Operating Instructions...
25 and 35 9. Release the O flush button. A pressure decrease on the airway pressure gauge indicates a leak. Contact your service personnel. A7™ Operating Instructions 046-004667-00 4 - 25...
Ensure that the reading on the airway pressure gauge does not exceed 10 cmH 13. Turn the O flow to zero. Ensure that the reading on the airway pressure gauge does not decrease below 0 cmH 4 - 26 046-004667-00 A7™ Operating Instructions...
Preoperative Tests Alarm Tests 4.15 Alarm Tests Test alarms by creating an alarm condition on the A7 and verifying the corresponding alarm indicators are present on the monitor. 4.15.1 Prepare for Alarm Tests 1. Connect a test lung or manual bag to the Y-piece of the breathing circuit.
3. Turn the APL valve control to set the APL valve to 10 cmH 4. Inflate using the O flush button and squeeze the manual bag to check that a complete breathing cycle occurs on screen. 4 - 28 046-004667-00 A7™ Operating Instructions...
3. Ensure that the equipment for airway maintenance, manual ventilation and tracheal intubation, and applicable anesthetic and emergency drugs are available. 4. Set the Auto/Manual ventilation switch to Manual. 5. Connect the manual bag to the manual bag port. 6. Turn off all vaporizers. A7™ Operating Instructions 046-004667-00 4 - 29...
8. Set all gas flows to zero. 9. Ensure that the breathing system is correctly connected and not damaged. WARNING: Before connecting a patient, flush the A7 anesthesia machine with 8 L/ min of O for at least two minutes. This removes unwanted mixtures and by-products from the system.
The A7 System provides a powering off function with the following features: • A prompt tone is heard when the user turns off the A7. If the system switch is turned off in Standby mode, the A7 will immediately power off.
If the Restore default settings checkbox is not selected, all the settings are retained. FIGURE 5-3 End Case Checkbox In the Standby mode, all system functions are not working. It is the default system startup mode and is used after ending the case. A7™ Operating Instructions 046-004667-00 5 - 3...
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1. Set the Auto/Manual ventilation switch to Manual. NOTE: The A7 System will not allow the End Case button to be selected until the Auto/Manual ventilation switch is set to Manual. 2. Select the End Case button in the Manual tab (see FIGURE 5-2).
EFCS or set the O and Air flow through BFCS. Safety systems within the A7 work to prevent hypoxic mixtures from being delivered to the patient. Nitrous oxide will not be delivered unless oxygen flow is present.
The concentration of the anesthetic agent actually output varies if the vaporizer is filled with the wrong agent. 2. Mount the vaporizer filled with anesthetic agent onto the A7 Anesthesia System. See “Install the Vaporizer” on page 2-5. 5.4.2.2...
When the drive gas supply fails, mechanical ventilation cannot work normally. 5.5.1 Monitored Parameters NOTE: The monitored parameters are measured in the condition of ATPS (ambient temperature and pressure saturated). The A7 monitors the following ventilation parameters: PARAMETER RANGE* COMMENTS PEAK -20 –120 cmH MEAN -20 –...
Manual to Auto and back to Manual mode. For example, if the Alarms button is set to Off, this setting will be saved and restored to Off after switching to Auto and back to Manual mode. FIGURE 5-7 Alarm Limit Indicators 5 - 8 046-004667-00 A7™ Operating Instructions...
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Alarms softkey to Off. The related alarm limits are then displayed as Off. Pressure, volume and apnea alarms can be turned on by setting the Alarms softkey to On, which returns the related alarm limits to their original settings. A7™ Operating Instructions 046-004667-00 5 - 9...
Operations Ventilation Modes In the VCV mode, if tidal volume compensation has failed, the A7 Anesthesia System can continue delivering gas stably but cannot compensate for the effects of fresh gas flow and breathing system compliance losses. In VCV and SIMV-VC modes, when inspiration pressure reaches Plimit, respectively, the inspiration pressure is held.
Ventilation Modes Operations For the A7, in PCV mode, Tidal Volume Guarantee (VtG) can be enabled with the VtG setting. When VtG is a value, then Pinsp is disabled. The ventilator attempts to deliver the set VtG while maintaining the PAW at or below PlimVG. When VtG is Off, PlimVG is disabled and Pinsp is enabled.
SIMV-PC parameters: • Pinsp: Peak inspiratory airway pressure • Rate: Breath rate • Tinsp: Time of inspiration NOTE: The screen displays the calculated I:E ratio based on Rate and Tinsp when adjusting the Tinsp. 5 - 14 046-004667-00 A7™ Operating Instructions...
5.5.9 Pressure Support Ventilation (PS) In Pressure Support (PS) mode, the patient’s effort is supported by the A7 at a preset level of inspiratory pressure. Inspiration is triggered and cycled by patient effort. The user can set the Trigger flow, ΔP, PEEP, minimum allowed breathing frequency, and Slope Time.
Monitor Mode Monitor mode is only available in the Manual ventilation mode when there is an AG module connected to the A7. This mode turns off all ventilation related alarms. NOTE: When Monitor mode is On, the Alarms button is disabled and set to Off.
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Waveforms tab. The Rate as determined by the AG module displays in the measured values area. The current mode area displays Monitor when Monitor is On. FIGURE 5-17 Monitor Mode A7™ Operating Instructions 046-004667-00 5 - 17...
1. Set the Auto/Manual ventilation switch to Manual. 2. Exit Standby by touching the main screen or by turning on the fresh gas. 3. Set the Auto/Manual ventilation switch to Auto. The A7 System begins mechanical ventilation. Stop Mechanical Ventilation To stop mechanical ventilation: 1.
If the parameter data is out of range, it displays as “– – –”. NOTE: The high alarm limit is displayed to the top right of the reading. The low alarm limit is displayed to the bottom right of the reading. A7™ Operating Instructions 046-004667-00 5 - 19...
5.10.1.1 Auto-zeroing the Pressure Sensors The A7 auto-zeros the pressure sensors at regular intervals to compensate for changes in temperature and/or barometric pressure that could affect both pressure and flow measurements. This may affect the waveforms on the screen, but does not affect the volume/pressure delivered to the patient.
Though the X-axis is not labeled, it represents a time scale of 0 to 15 seconds. 5.10.4 Gas Waveform The CO vs. Time waveform displays in the waveform area. FIGURE 5-24 Example Simulated CO vs. Time Waveform A7™ Operating Instructions 046-004667-00 5 - 21...
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Y-axis (see “Gas Scales” on page 3-40). Though the X-axis is not labeled, it represents a time scale of 0 to 15 seconds. AA vs. Time waveform is displayed in the waveform area. FIGURE 5-27 Example Simulated AA vs. Time Waveform (available with the AG module) 5 - 22 046-004667-00 A7™ Operating Instructions...
Currently plotting loop, reference loop, and baseline loop display in manual and mechanical ventilation modes. Discharging the patient clears spirometry loops (baseline and reference loops). Restarting the machine clears spirometry loops (baseline and reference loops). A7™ Operating Instructions 046-004667-00 5 - 23...
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Flow - Volume Spirometry Loop FIGURE 5-30 is an example of the Flow - Volume loop. FIGURE 5-30 Flow - Volume Loop The Y-axis of the Flow - Volume Spirometry loop represents Flow. The X-axis represents Volume. 5 - 24 046-004667-00 A7™ Operating Instructions...
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FIGURE 5-31 is an example of the Pressure - Flow loop. FIGURE 5-31 Pressure - Flow Loop The Y-axis of the Pressure - Flow Spirometry loop labeled PAW represents airway pressure. The X- axis represents Flow. A7™ Operating Instructions 046-004667-00 5 - 25...
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Parameter Monitoring (Spirometry) Operations This page intentionally left blank. 5 - 26 046-004667-00 A7™ Operating Instructions...
Alarms and Messages Introduction The A7 System provides alarms and messages that are indicated to the user by visual and audible alerts. Alarms and messages display at the top of the main screen and in the Alarms window (see FIGURE 6-1). Users can adjust alarm properties, which include setting alarm limits to trigger alarm conditions, adjusting alarm volume, and silencing alarms.
Alarms and Messages Introduction 6.1.2 Types of Alarms and Messages The A7 provides the following types of alarms and messages below. See section 6.6 (page 6-14) "Alarm and Prompt Messages" for the list of alarms and messages: • Physiological Alarm: Patient-related variables cause physiological alarms.
Introduction Alarms and Messages 6.1.3 Alarm Indicators The A7 provides the following alarm indicators: • An alarm LED located on top of the LCD monitor. The LED can illuminate red, yellow, cyan, or OFF depending on the alarm condition. Table describes the alarm behavior of different alarm types and different alarm priority labels. If multiple alarms occur simultaneously, the audio and LED behavior follows the highest priority active alarm.
Alarms display in order of priority and time. See section 6.2.1 (page 6-6) "Displayed Order of Alarm Messages" for more information. FIGURE 6-2 Active Alarms list in the Alarms window A7™ Operating Instructions 046-004667-00 6 - 5...
In each group, the most recent alarm displays first. • If the alarm in Area A is removed, then the most recent and highest priority alarm from Area B is moved to Area A. 6 - 6 046-004667-00 A7™ Operating Instructions...
FIGURE 6-4 Audio Tab WARNING: Do not rely exclusively on the audible alarm system when using the A7 Anesthesia System. Adjustment of alarm volume to a low level may result in a hazard to the patient. Always keep the patient under close surveillance.
If this occurs, you can select the Silence softkey again to silence the new alarm and reset the silence countdown timer to 120 seconds. Alarm audio-paused Icon 120 second countdown time icon FIGURE 6-5 Alarm audio-paused 6 - 8 046-004667-00 A7™ Operating Instructions...
NOTE: When using the A7 Anesthesia System, ensure that the alarm limits of each parameter are set to the appropriate values for the patient. There are two ways to set alarm limits: 1.
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Alarm Limits Alarms and Messages FIGURE 6-6 Limits tab in the Alarms Window (without AG module connected) FIGURE 6-7 Limits tab in the Alarms Window (with AG module connected) 6 - 10 046-004667-00 A7™ Operating Instructions...
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Alarms and Messages Alarm Limits FIGURE 6-8 Agents tab in the Alarms Window (with AG module connected) A7™ Operating Instructions 046-004667-00 6 - 11...
The Auto Alarm Limits function uses an algorithm based on measured values. The relationship is shown in the TABLE 6-2. The Auto Alarm Limits button is disabled when the A7 is in Standby mode, Manual mode or Monitor mode. The Auto Alarm Limits button is also disabled when the current mode is PS, SIMV- VC, or SIMV-PC.
The Disabled in Standby mode column indicates which physiological alarms will be automatically disabled in the Standby mode. NOTE: The Disabled in Monitor mode column indicates which physiological alarms will be automatically disabled in the Monitor mode. 6 - 14 046-004667-00 A7™ Operating Instructions...
O Too Low O < low alarm limit Medium setting N/A - Not Applicable. This alarm message does not exist within this mode and therefore cannot be disabled or enabled. TABLE 6-3 Physiological Alarm Messages A7™ Operating Instructions 046-004667-00 6 - 15...
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Too Low < low alarm limit Medium setting N/A - Not Applicable. This alarm message does not exist within this mode and therefore cannot be disabled or enabled. TABLE 6-3 Physiological Alarm Messages 6 - 16 046-004667-00 A7™ Operating Instructions...
“All” indicates that all Automatic Ventilation, Manual Ventilation, and Cardiac Bypass modes are enabled. “Only Manual” indicates that only Manual Ventilation and Cardiac Bypass modes are enabled. “Non-Functional” indicates that the A7 Anesthesia System cannot be used. MACHINE MODE STARTUP...
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Functional Control internal Board communication error. Ventilator 5 V or 12 V voltage High Startup Only Ventilator Voltage Error / error Manual Control Ventilator Board Voltage: Fail TABLE 6-4 Startup Alarm Messages 6 - 18 046-004667-00 A7™ Operating Instructions...
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RT Clock Failure RT chip malfunction High Startup only CPU Board / RT Clock: Fail TABLE 6-4 Startup Alarm Messages A7™ Operating Instructions 046-004667-00 6 - 19...
Fan Failure Speed of the fan ≤ 20% of Medium Runtime normal speed Fan Failure O Speed of Module Rack Medium Runtime fan < 3640 TABLE 6-5 CPU Board Runtime Alarm Messages 6 - 20 046-004667-00 A7™ Operating Instructions...
If the power board loses communication with the CPU board for 10 seconds, the alarm buzzer is turned on. NOTE: If the system restarts accidentally, the alarm buzzer will sound for 10 seconds to show notification. A7™ Operating Instructions 046-004667-00 6 - 21...
Achieved %, 200 mlpm) N/A - Not Applicable. This alarm message does not exist within this mode and therefore cannot be disabled or enabled. TABLE 6-7 Electronic Flow Control System Runtime Alarm Messages 6 - 22 046-004667-00 A7™ Operating Instructions...
5 V or 12 V voltage error High Runtime Error N/A - Not Applicable. This alarm message does not exist within this mode and therefore cannot be disabled or enabled. TABLE 6-8 Ventilator Control Board Runtime Alarm Messages A7™ Operating Instructions 046-004667-00 6 - 23...
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Drive Gas Pressure is low. High Runtime N/A - Not Applicable. This alarm message does not exist within this mode and therefore cannot be disabled or enabled. TABLE 6-8 Ventilator Control Board Runtime Alarm Messages 6 - 24 046-004667-00 A7™ Operating Instructions...
AG Comm Stop AG module malfunction High Runtime or communication failure. TABLE 6-9 AG Module Alarm Messages A7™ Operating Instructions 046-004667-00 6 - 25...
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O Over Range range. Hal Over Range Enf Over Range Iso Over Range Sev Over Range Des Over Range Over Range Rate Over Range TABLE 6-9 AG Module Alarm Messages 6 - 26 046-004667-00 A7™ Operating Instructions...
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Internal AG Error Internal AG Zero Failed Internal AG Error Internal AG No Watertrap Internal AG Error Internal AG Airway Occluded Internal AG Error Internal AG Change Watertrap TABLE 6-9 AG Module Alarm Messages A7™ Operating Instructions 046-004667-00 6 - 27...
This message displays when the Flow Pause is active. Gas Flow Paused All Physiological This message displays when the Flow Pause is active. Alarms are OFF TABLE 6-10 Prompt Messages Display in Alarm Area 6 - 28 046-004667-00 A7™ Operating Instructions...
This message displays in the first Automatic Circuit Leak Test & Auto position. Compliance Test screen when pressing the disabled Continue button if EFCS is configured. TABLE 6-11 Prompt Messages Displayed in Pop-up Area A7™ Operating Instructions 046-004667-00 6 - 29...
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Cannot set Fresh Gas Flow This message displays when the user presses the fresh gas flow area in Monitor mode. or adjusts encoder knob in Monitor mode. TABLE 6-11 Prompt Messages Displayed in Pop-up Area 6 - 30 046-004667-00 A7™ Operating Instructions...
Breathing System Maintenance...............................7-4 Flow Sensor Calibration ..................................7-5 Water Build-up in the Flow Sensor ..............................7-6 Water Build-up in the Flow Sensor ..............................7-6 AGSS Transfer Tube Maintenance..............................7-7 Electrical Safety Inspection.................................7-7 Cleaning and Disinfection...................................7-8 Regular Maintenance ..................................7-26 A7™ Operating Instructions 046-004667-00 7 - 1...
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Maintenance WARNING: Do not use a malfunctioning A7 Anesthesia System. Have all repairs and service done by an authorized service representative. WARNING: Use a cleaning and disinfection schedule that conforms to your institution's disinfection and risk-management policies. • Refer to the material safety data sheet as applicable.
Maintenance Theory of Operation Theory of Operation The A7 System is a pneumatically-driven and electronically-controlled anesthesia machine. Three types of supply gases are available: N O, O , and Air. The user adjusts supply gas flows through the flowmeters. The mixed gas outputted from the flowmeters is further mixed with the anesthetic agent inside the anesthetic vaporizer to form the fresh gas.
MAINTENANCE Daily Clean the external surfaces. Annually Perform periodic maintenance by a trained technician. Contact Mindray Technical Support for details. Every three years Perform periodic maintenance by a trained technician. Contact Mindray Technical Support for details. As necessary • Before installing the cylinder, use a new cylinder gasket on the cylinder yoke.
11. Select Done to close the Calibration window (see FIGURE 7-3). 12. Select the Accept or Cancel softkey to close the Setup window. NOTE: In case of repeated calibration failure, contact Mindray Technical Support. FIGURE 7-2 Flow Sensor Calibration FIGURE 7-3 Flow Sensor Calibration...
Use a filter between the flow sensor and the patient to limit water condensation in the flow sensor. • Check the water trap for water before using the A7 Anesthesia System. If there is water build- up, clear it immediately. 7.6.2 Clear Water Build-up Water build-up inside the flow sensor results in inaccurate measured value of tidal volume.
Perform electrical safety inspection after servicing or routine maintenance. Before the electrical safety inspection, make sure all the covers, panels, and screws are correctly installed. NOTE: Perform the electrical safety inspection once a year. A7™ Operating Instructions 046-004667-00 7 - 7...
7.9.2 Cleaning and Disinfecting Agents / Autoclaving Clean and disinfect the A7 before its first use, then daily and as often as needed. (see TABLE 7-1, “Maintenance Schedule, ” on page 7-4.) TABLE 7-2 to TABLE 7-4 list the allowable cleaning and disinfecting agents and autoclaving process for the A7 Anesthesia System.
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All breathing system components are autoclavable except the PAW gauge, flow sensor, and bellows. The components can be autoclaved up to a maximum temperature of 134 ºC (273 ºF). The suction tubes of the negative pressure suction device are not autoclavable. TABLE 7-4 Autoclaving A7™ Operating Instructions 046-004667-00 7 - 9...
1. The bellows dome is a transparent cover with graduation marks from 300 to 1500 ml. Remove the bellows dome by turning it counterclockwise and lifting it away from the breathing system. (see FIGURE 7-5) FIGURE 7-5 Removing the Bellows Dome 7 - 10 046-004667-00 A7™ Operating Instructions...
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2. Detach the bellows from the base plate (see FIGURE 7-6). FIGURE 7-6 Detaching the Bellows 3. Detach the top plate from the bellows (see FIGURE 7-7). FIGURE 7-7 Detaching the Bellows Top Plate A7™ Operating Instructions 046-004667-00 7 - 11...
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CAUTION: Do not autoclave the following components: Paw gauge, flow sensor, and bellows. These components cannot withstand immersion or the heat and pressure of autoclaving. 7 - 12 046-004667-00 A7™ Operating Instructions...
The following procedure is written generically for a single, unspecified valve. It should be performed on both the inspiration and expiration valves. Expiration Valve Inspiration Valve FIGURE 7-10 Location of Expiration and Inspiration Valves A7™ Operating Instructions 046-004667-00 7 - 13...
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The valve disc in each of the inhalation and exhalation valve assemblies on the breathing system is fragile and must be handled with care while removing the valve cage from the valve assembly. 7 - 14 046-004667-00 A7™ Operating Instructions...
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TION. Prior to use after cleaning or disinfecting, power up the system and follow the on- screen prompts to perform the leak test and the compliance test (see section 4.5 (page 4-8) "Leak and Compliance Tests"). A7™ Operating Instructions 046-004667-00 7 - 15...
Prior to use after cleaning or disinfecting, power up the system and follow the on-screen prompts to perform the leak test and the compliance test. see section 4.5 (page 4-8) "Leak and Compliance Tests". 7 - 16 046-004667-00 A7™ Operating Instructions...
3. Re-insert the PAW gauge if it was removed. Prior to use after cleaning or disinfecting, power up the system and follow the on-screen prompts to perform the leak test and the compliance test (see section 4.5 (page 4-8) "Leak and Compliance Tests"). A7™ Operating Instructions 046-004667-00 7 - 17...
4. Reassemble the bag arm to the breathing system. Prior to use after cleaning or disinfecting, power up the system and follow the on-screen prompts to perform the leak test and the compliance test (see section 4.5 (page 4-8) "Leak and Compliance Tests"). 7 - 18 046-004667-00 A7™ Operating Instructions...
18). This separates the absorber canister from the top of the assembly. While noting the previous WARNING, remove the absorber canister. Then remove the Pre-Pak or loose fill absorbent from the canisters. Dispose of the absorbent as per the local regulations. A7™ Operating Instructions 046-004667-00 7 - 19...
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Use an approved disinfecting agent (see TABLE 7-3 on page 7-9 and TABLE 7-4 on page 7-9) for the absorber canister while adhering to facility policies and procedures. 6. Make sure that the gasket is correctly installed. The comparison between correct installation and incorrect installation is shown below. 7 - 20 046-004667-00 A7™ Operating Instructions...
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(see FIGURE 7-19). Prior to use after cleaning or disinfecting, power up the system and follow the on-screen prompts to perform the leak test and the compliance test (see section 4.5 (page 4-8) "Leak and Compliance Tests"). A7™ Operating Instructions 046-004667-00 7 - 21...
3. Press and hold the buckle on the bypass assembly to take out the bypass assembly downward. Buckle Bypass Assembly FIGURE 7-21 Remove Bypass Assembly 4. Pull out the canister bottom plate upward. Canister Bottom Plate FIGURE 7-22 Remove Canister Bottom Plate 7 - 22 046-004667-00 A7™ Operating Instructions...
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Clean the breathing system block exterior with a soft, lint-free cloth and a recommended cleaning agent (see TABLE 7-2 on page 7-8). Allow to dry thoroughly. b. If disinfecting the breathing system block, continue with step 7, otherwise skip to step 8. 7. Disinfection A7™ Operating Instructions 046-004667-00 7 - 23...
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CAUTION: To ensure measurement accuracy and to avoid possible damage to the A7, use only Mindray-approved cables and accessories. CAUTION: Inspiratory and expiratory flow sensors are flow-direction-sensitive. 7 - 24 046-004667-00 A7™...
Active AGSS (Anesthetic Gas Scavenging System) and AGSS Transfer Hose 1. Disconnect the EVAC hose from the AGSS (see FIGURE 7-25). 2. Remove the AGSS and Transfer Hose from the A7. Transfer Hose EVAC Hose Port FIGURE 7-25 AGSS and Transfer Hose Removal 3.
Regular Maintenance Maintenance AGSS Filter FIGURE 7-26 Removal of AGSS Top / AGSS Filter Inspection 5. Reassemble the AGSS and Transfer Hose and reconnect them to the A7 in the reverse order. 7.10 Regular Maintenance WARNING: To avoid endangering a patient, do not perform testing or maintenance when the machine is in use.
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Understand MAC Values..................................8-3 Agent Usage Calculation ..................................8-4 Identify External AG Modules................................8-5 Prepare to Measure AG ..................................8-6 Make AG Settings......................................8-7 Measurement Limitations ...................................8-9 Troubleshooting......................................8-9 Sample Gas Recirculation ................................. 8-10 Calibrate the AG Module .................................. 8-11 A7™ Operating Instructions 046-004667-00 8 - 1...
2. Measured parameters: EtCO , FiCO , EtN O, FiN O, EtAA, FiAA and MAC, where, AA stands for any of the five anesthetic agents: Des (desflurane), Iso (isoflurane), Enf (enflurane), Sev (sevoflurane), or Hal (halothane). A7™ Operating Instructions 8 - 2 046-004667-00...
U.S. Food and Drug Administration for a healthy 40- year-old male patient. NOTE: In actual applications, although the A7 accounts for patient age, the effects of weight and other factors on the inhaled anesthetic agent should be considered.
A7 exits the Standby mode. When A7 enters Standby, the agent usage stops accumulating. If the A7 restarts within not more than 60s after accidental power failure, when the case is not ended, the anesthetic agent usage will continue accumulating until the A7 enters Standby mode.
Agent Consumption Speed (Software Bundle Version 02.11.00 or later) Agent Consumption Speed (Software Bundle Version 02.11.00 or later) When anesthesia system is configured with internal AG module, A7 can calculate the agent consumption speed (the approximately agent used per hour) and the cost. Agent Comsumption Speed...
Do not use high volume watertraps with Infant patients. Otherwise, patient injury could result. WARNING: Make sure that all connections are reliable. Any leak in the system can result in erroneous readings due to patient breathing gas mixed with ambient air. A7™ Operating Instructions 8 - 6 046-004667-00...
Med: 150 ml/min for high volume watertrap; 90 ml/min for low volume watertrap Low: 120 ml/min for high volume watertrap; 70 ml/min for low volume watertrap 4. Select the Accept button to confirm the change, or select the Cancel button to disregard the change. A7™ Operating Instructions 046-004667-00 8 - 7...
The alarm is then triggered when the parameter value is greater than the High Limit or lesser than the Low Limit. NOTE: When using the A7 Anesthesia System, ensure that the alarm limits of each parameter are set to the appropriate values for the patient. To set the Alarm Limits: 1.
If that does not resolve it, internal occlusions may exist. Contact your service personnel. If the expired O concentration is higher than the inspired O concentration, it is possible that the pump rate is too low. Setting Gas Bench Flow Rate to High is recommended. A7™ Operating Instructions 046-004667-00 8 - 9...
When using the AG module to perform AG measurements on the patients who are receiving or have recently received anesthetic agents, connect the outlet to the sample gas return port to prevent the medical staff from breathing in the anesthetic agents. A7™ Operating Instructions 8 - 10 046-004667-00...
10. After calibration, select the Done botton to close the Calibration window. 11. Select the Accept button to confirm the change, or select the Cancel button to discard the change. A7™ Operating Instructions 046-004667-00 8 - 11...
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Calibrate the AG Module AG and O2 Concentration Monitoring This page intentionally left blank. A7™ Operating Instructions 8 - 12 046-004667-00...
Standards Compliance Product Specifications Standards Compliance The A7 Anesthesia System is in compliance with the following industry standards. ANSI / AAMI ES60601-1:2005/(R)2012 and Medical electrical equipment - Part 1: General requirements C1:2009/(R)2012 and, A2:2010/(R)2012 for basic safety and essential performance...
Equipment designed for non-electrical connection to the Equipment and Patient: patient Degree of Mobility: Mobile: including the base and casters of the anesthesia system Disinfection: Steam autoclavable or disinfectable TABLE 9-2 Safety Designations A7™ Operating Instructions 046-004667-00 9 - 3...
9.2.2 Wiring and PC Board Materials The A7 complies with NRTL standards for wiring and PC board materials. Primary wiring is double insulated (jacketed). All wires are UL recognized. 9 - 4 046-004667-00...
Stability Configurations and Conditions Maintains stability when tilted 10 degrees, as required by ANSI/AAMI ES60601-1, clause 9.4. WARNING: Due to the size and weight of the A7, it should only be moved by qualified personnel. WARNING: Excess load may cause a tip hazard while moving the A7. Before moving, remove all equipment from the top shelf and all monitoring equipment mounted to the side of the A7.
TABLE 9-4 Electrical Specifications 9.6.1 Main Electrical Power Specifications The A7 complies with ANSI/AAMI ES60601-1 for its main power supply. Power Supply Input Voltage: 100 to 120 VAC @ 50/60 Hz Power Supply Input Current: 2 A maximum for A7 unit...
Auxiliary Electrical Outlets TABLE 9-7 9.6.4 Communication Ports Communication Port (SP1): One DB9 male connector on the rear of the A7. Provides a non-isolated output serial RS232C interface. NOTE: Do not connect any non- isolated devices to the DB9/RS232C interface of the A7.
SP, Approximately 0 to 75 cmH Adjustable Range of Motion: 330 ±10 degrees Tactile Knob Indication: 30 cmH O and above Minimum pressure to open the APL Dry: 0.15 kPa valve: Wet: 0.15 kPa APL Valve TABLE 9-17 A7™ Operating Instructions 046-004667-00 9 - 9...
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Breathing System Specifications Product Specifications Resistance of APL valve in dry gas: Flow (L/min) Resistance of APL valve in wet gas: Flow(L/min) APL Valve TABLE 9-17 9 - 10 046-004667-00 A7™ Operating Instructions...
Off, 1 to 99 O High Limit Off, 2 to 100 O Low Limit Off, 0 to 98 O High Limit Off, 2 to 100 O Low Limit Off, 0 to 98 Alarms TABLE 9-24 9 - 16 046-004667-00 A7™ Operating Instructions...
The total interference of all gases is never larger than 5 % 4) Interference for one of the five agents with secondary agent. Effect of Interfering Gas on AG Measured Value TABLE 9-25 A7™ Operating Instructions 046-004667-00 9 - 17...
9.11.4 Monitor Mode The system supports Monitor mode when the A7 is configured with an external AG module. When the system is in Monitor mode, the external AG module continues to function, while the ventilation monitors and alarms of the A7 will be off.
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Pressure Control Accuracy: Pinsp: ± 2.5 cmH O or ± 7 % of the set value, whichever is greater Plimit: ± 10 % of the set value Control and Monitoring Accuracy TABLE 9-31 A7™ Operating Instructions 046-004667-00 9 - 19...
Flow of Air is independent of the system switch position. Touchpad : Allows control of the touch screen. Mouse: The A7 utilizes the USB port for a mouse that allows control of the touch screen. Electronic Controls TABLE 9-32 9 - 20 046-004667-00 A7™...
Flow range for each meter: 0 to 15 L/min Indicator accuracy of each meter: ± 10 % of the indicated value for flows (between 10 % and 100 % of full scale) Pneumatic Controls TABLE 9-33 A7™ Operating Instructions 046-004667-00 9 - 21...
9.14 Alarms Self-test: Self-testing of alarm system functions (alarm light, speaker, and buzzer) is performed when A7 System is powered on. Alarm Indicators: Audible: speaker / buzzer Visual: alarm light and on-screen alarm messages (Audible and visual alarms comply with the requirements of IEC 60601-1-8.)
Safety Specifications TABLE 9-35 9.16 ASTM F 1208 – 89 (2005) Disclosures Based on the following disclosures, the A7 complies with ASTM Standard Specification F1208 for Anesthesia Breathing Systems. 9.16.1 Leakage of Breathing System Mode...
Wet: 0.02 kPa opening pressure. 9.17 Data Storage (Non-Volatile) and Recording Configuration Storage: A7 supports one factory configuration group and one user configuration group. Each configuration has three patient size types: Adult, Pediatric, and Infant. Log Storage: 500 entries of alarm log...
Product Specifications Response Time of the A7 to an Increase in O2 Concentration (From 21% to 90%/100%) 9.18 Response Time of the A7 to an Increase in O Concentration (From 21% to 90%/100%) Ventilator setting: TV=500 ml, Freq=10 bpm, I:E=1:2...
GUIDANCE AND DECLARATION - ELECTROMAGNETIC EMISSION The A7 is intended for use in the specified electromagnetic environment. The customer or the user of the A7 should assure that it is used in such an environment as described below.
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Electromagnetic Compatibility GUIDANCE AND DECLARATION - ELECTROMAGNETIC IMMUNITY The A7 is intended for use in the specified electromagnetic environment. The customer or the user of the A7 should assure that it is used in such an environment as described below.
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If the measured field strength in the location in which the A7 is used exceeds the applicable RF compliance level above, the A7 should be observed to verify nor- mal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating A7.
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RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF COMMUNICATIONS EQUIPMENT AND THE A7 The A7 is intended for use in an electromagnetic environment in which radiated RF disturbance are controlled. The customer or the user of the A7 can help prevent electromagnetic interference by...
AG Accessories ......................................A-2 CO2 Absorbent......................................A-2 Gas Cylinder Accessories..................................A-2 Gas Supply Hoses ....................................A-3 Manuals and Reference Cards................................A-3 Mounting Accessories ..................................A-3 Networking and USB Storage ................................A-4 Vaporizers ........................................A-4 A7™ Operating Instructions 046-004667-00 A - 1...
The following accessories are designed for the A7 Anesthesia System. The use of other accessories is not recommended. To place an order for these or other accessories, contact Customer Service at 1 (800)288-2121 or order accessories online at www.mindray.com.
USB Storage Device, 16 GB Vaporizers PART NUMBER DESCRIPTION 0992-00-0148 Sevoflurane Vaporizer with Quick Fill Adapter 0004-00-0100 Sevoflurane Quick Fill Bottle Adapter 0992-00-0149 Isoflurane Vaporizer with Fill Adapter 0004-00-0101 Isoflurane Fill Bottle Adapter 115-020218-00 Three vaporizer mount A - 4 046-004667-00 A7™ Operating Instructions...
PART NUMBER DESCRIPTION 115-037548-00 Passive scavenging kit The Dynamic Gas Scavenging System (DGSS) from Anesthetic Gas Reclamation is approved for use on the A7. NOTE: The Active AGSS comes standard with the A7 system. A7™ Operating Instructions 046-004667-00 A - 5...
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Scavenging Accessories Accessories This page intentionally left blank. A - 6 046-004667-00 A7™ Operating Instructions...
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User Accessible Spare Parts Active AGSS ........................................B-2 Breathing System......................................B-2 CO2 Absorbent Canister..................................B-2 Flow Sensor ........................................B-2 Gas Cylinder Accessories..................................B-3 Negative Pressure Suction Device..............................B-3 Battery..........................................B-3 A7™ Operating Instructions 046-004667-00 B - 1...
Active AGSS User Accessible Spare Parts The following spare parts are designed for the A7 Anesthesia System. The use of other spare parts is not recommended. To place an order for these or other spare parts, contact Customer Service at 1 (800)288-2121 or order spare parts online at www.mindray.com.
Gas Cylinder Accessories PART NUMBER DESCRIPTION 115-033063-00 Gas Cylinder Wrench Negative Pressure Suction Device PART NUMBER DESCRIPTION 082-001327-00 Filter 115-033264-00 Negative pressure suction tube (including filters) Battery PART NUMBER DESCRIPTION 115-018012-00 Lithium-ion Battery A7™ Operating Instructions 046-004667-00 B - 3...
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Battery User Accessible Spare Parts This page intentionally left blank. B - 4 046-004667-00 A7™ Operating Instructions...
Infant: 30 mmHg FiCO High Off, 1 to 99 Step: 1 O High Off, (Low+2) to 100 Step: 1 O Low Off, 0 to (High-2) Step: 1 O High Off, (Low+2) to 100 Step: 1 C - 2 046-004667-00 A7™ Operating Instructions...
System Tab: Clear History On, Off System Tab: Optimizer: On, Off Optimizer System Tab: Time Settings: Manual, Auto Manual Daylight Savings System Tab: Network: This 0 - 255 192.168.23.250 Machine: Configure Ethernet: IP Address C - 4 046-004667-00 A7™ Operating Instructions...
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Protocol: Configure HL7: Send Alarms Ack. System Tab: Network: Network On, Off Protocol: MD2 System Tab: Network: Network — 192.168.23.99 Protocol: Configure MD2: Destination IP System Tab: Network: Network — 6678 Protocol: Configure MD2: Port A7™ Operating Instructions 046-004667-00 C - 5...
1-12 Year 1900-2099 2009 Hour — 00 (24 hr) 12 AM (12 hr) Minute 00-60 AM/PM AM/PM 12/24 hour 12, 24 Date format YYYY/MM/DD, MM/DD/YYYY, DD/MM/ YYYY-MM-DD YYYY Daylight Savings Time On, Off C - 6 046-004667-00 A7™ Operating Instructions...
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PARAMETER SIMV-VC SIMV-PC MANUAL Range: Range: — — — — 20 to 1500 ml 20 to 1500 ml Step: 1 Step: 1 Defaults: Defaults: Adult: 600 ml Adult: 600 ml Pediatric: 120 ml Pediatric: 120 ml Infant: 20 ml Infant: 20 ml —...
PlimVG. PlimVG. of PlimVG. PlimVG. Tslope — The parameter value is shared between the previous and current ventilation modes. A7™ Operating Instructions 046-004667-00 C - 11...
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— Trigger — PEEP — Tslope — Min Rate — Δ — Trigger — Peep — Tslope — Apnea Ti — The parameter value is shared between the previous and current ventilation modes. C - 12 046-004667-00 A7™ Operating Instructions...
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4 ≤ Rate ≤ 100 Pinsp Pinsp ≥ PEEP+5 5 ≤ Pinsp ≤ 70 Even when the PlimVG, Pinsp, or ΔP parameters are inactive, they are restricted to the NOTE: parameter relationship equations. C - 14 046-004667-00 A7™ Operating Instructions...
Pneumatic Diagram Pneumatic Diagram of the A7 System............................D-2 A7™ Operating Instructions 046-004667-00 D - 1...
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Pneumatic Diagram of the A7 System Pneumatic Diagram Pneumatic Diagram of the A7 System Supply Inlet FIGURE D-1 Pneumatic Diagram of the A7 System D - 2 046-004667-00 A7™ Operating Instructions...
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Pneumatic Diagram Pneumatic Diagram of the A7 System DESCRIPTION DESCRIPTION Gas Pipeline Connection Check Valve 3 Gas Cylinder Connection Dual Vaporizer Block O Gas Pipeline Connection Ventilator O Gas Cylinder Connection Pressure Relief Valve (37.9 kPa) Air Gas Pipeline Connection...
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Pneumatic Diagram of the A7 System Pneumatic Diagram This page intentionally left blank. D - 4 046-004667-00 A7™ Operating Instructions...
Abbreviations, Symbols, and Units of Measure Abbreviations ......................................E-2 Symbols .......................................... E-4 Units of Measure ....................................... E-5 Attention Symbols ....................................E-6 A7™ Operating Instructions 046-004667-00 E - 1...
FiSEV fractional concentration of sevoflurane in inspired gas Flow flow halothane ratio of inspiration time to expiration time isoflurane mean alveolar concentration MEAN mean pressure E - 2 046-004667-00 A7™ Operating Instructions...
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Trigger trigger sensitivity tidal volume tidal volume guarantee volume control ventilation volume guarantee control A7™ Operating Instructions 046-004667-00 E - 3...
Volt kilo Volt Amp kilogram Volts alternating current kiloPascal Ω pound-force per square inch μA microAmp L, l liter μV microVolt pound Watt nanometer A7™ Operating Instructions 046-004667-00 E - 5...
ACGO is configured. Only vaporizers with Selectatec Interlock-Systems may be used with the A7 unit. Use vaporizers compliant to ISO 80601-2-13. See chapter "Accessories". Refer to the vaporizer manufacturer’s Instructions For Use for filling or draining the vaporizer and other information.
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Individual outlet current is limited to 3 A. Total mains output current is limited to 10 A. Sample Line Exhaust Gas Inlet: Inlet for waste gas from an optionally attached gas module. Merges with the AGSS connector that connects to the AGSS. A7™ Operating Instructions 046-004667-00 E - 7...
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/Air output. Combines the auxiliary O /Air flowmeters into a single output. Maximum supporting weight: 25 kg at a maximum distance of 0.31 m. Only AG module provided by Mindray can be used. E - 8 046-004667-00 A7™ Operating Instructions...
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Maximum supporting weight: 25 kg at a maximum distance of 0.31 m. Maximum supporting weight: 25 kg at a maximum distance of 0.31 m. Maximum supporting weight: 25 kg at a maximum distance of 0.31 m. A7™ Operating Instructions 046-004667-00 E - 9...
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Attention Symbols Abbreviations, Symbols, and Units of Measure Rear Front FIGURE E-5 Main Unit (Top View) ATTENTION! NUMBER DESCRIPTION Top Shelf: 40 kg MAX. 88 lbs MAX. E - 10 046-004667-00 A7™ Operating Instructions...
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Do not push down on the bag arm forcefully or hang heavy objects onto it. Excessive weight may bend and damage the bag arm. A7™ Operating Instructions 046-004667-00 E - 11...
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NUMBER DESCRIPTION 134°C >PPSU<. Autoclavable up to 134°C. Operating the A7 with a full water trap in the breathing system block does not allow the water to condense appropriately. The trap should be removed and emptied when filled with water.
5 ppm to be safe. the following steps are recommended to prepare a A7 anesthesia system for an MH-susceptible patient. 1. Turn off and remove all the vaporizers from the anesthesia system to prevent their inadvertent use.
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Preparation for Malignant Hyperthermia Susceptible Patients Washout Procedure for Malignant Hyperthermia Susceptible Patients with A7 4. Upon completion of the 40 minute flush, remove the patient breathing circuit. Allow the bellows to deflate completely. Replace with a new patient breathing circuit, including bag and new carbon dioxide absorbent.
: Guidelines are excerpted from the MHAUS website and do not replace the indicated instructions for preparation of the A7. : This method has not been tested with A7. References 1. Hopkins PM. Malignant hyperthermia: pharmacology of triggering. Br J Anaesth. 2011 Jul;...
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Hoevelaken • The Netherlands • Tel: +31 33 25 44 911 • Fax: +31 33 25 37 621 Mindray (UK) Limited • 3 Percy Road • St. John’s Park • Huntingdon • Cambridgeshire PE29 6SZ • United Kingdom • Tel: 01480 416840 • Fax: 01480 436588 Mindray Medical France SARL •...
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