Datex-Ohmeda Aespire 7900 User's Reference Manual
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Datex-Ohmeda Aespire 7900 User's Reference Manual

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Aespire 7900
User's Reference Manual—Part 1
System Controls, Operation, Checkout

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  • Page 1 Aespire 7900 User’s Reference Manual—Part 1 System Controls, Operation, Checkout...
  • Page 2 Datex-Ohmeda recommends that a telephonic or written request for service advice be made to the nearest Datex-Ohmeda Customer Service Center. This Product or any of its parts should not be repaired other than in accordance with written instructions provided by Datex-Ohmeda and by Datex-Ohmeda trained personnel.

  • Page 3: Table Of Contents

    What is an Aespire 7900? ........
  • Page 4 4 Preoperative Tests Aespire 7900 Preoperative tests schedules ......4-2 Test Intervals ..........4-2 Test devices .
  • Page 5 ISO 5358 or BSI standard positive low-pressure leak test ..........4-13 Alarm tests .
  • Page 6 S/5 Aespire 1009-0632-000...
  • Page 7 What is an Aespire 7900? ........

  • Page 8: What Is An Aespire 7900

    Consult with your Datex-Ohmeda representative for details about systems available in your location. The Aespire 7900 is not suitable for use in an MRI environment. Figure 1-1 • Aespire 7900 example 1009-0632-000...

  • Page 9: Symbols Used In The Manual Or On The Equipment

    An Important statement is similar to a Note, but provides a comment of greater emphasis. Other symbols replace words on the equipment or in Datex-Ohmeda manuals. No one device or manual uses all of the symbols. These symbols include: ø ø ø ø...
  • Page 10 Systems with this mark agree with the European Union Representative European Council Directive (93/42/EEC) for Medical Devices when they are used as XXXX specified in their Operation and Maintenance Manuals. The xxxx is the certification number of the Notified Body used by Datex-Ohmeda’s Quality Systems. 1009-0632-000...
  • Page 11 2 System Controls and Menus In this section Anesthesia system controls ........2-2 Breathing system components .

  • Page 12: Anesthesia System Controls

    Aespire 7900 Anesthesia system controls w w w w WARNING Explosion Hazard. Do not use S/5 Aespire systems with flammable anesthetic agents. w w w w WARNING Do not use antistatic breathing tubes or masks. They can cause burns if you use them near high frequency surgical equipment.
  • Page 13 2 System Controls and Menus Figure 2-1 shows these controls on the front of the S/5 Aespire. Item Description Flow controls Turn the control counterclockwise to increase the flow and clockwise to decrease. The system switch must be On for gas to flow. System switch Set the switch to the on ( | | | | ) position to permit gas flow and to turn on the system.
  • Page 14 Aespire 7900 1. Circuit Breaker for Electrical Outlet 2. Electrical Outlet (optional) 3. Equipotential Stud 4. Mains Inlet 5. System Circuit Breaker 6. Cylinder(s) (optional) 7. Pipeline Connection(s) Figure 2-2 • Aespire rear view 1009-0632-000...

  • Page 15: Breathing System Components

    2 System Controls and Menus Breathing system components 1. Auxiliary common gas outlet (ACGO) switch 2. ACGO 3. Inspiratory check valve (unidirectional valve) 4. Inspiratory flow sensor / patient connection (circuit connections) 5. Canister (carbon dioxide absorbent) 6. Canister release 7.
  • Page 16 Aespire 7900 Figure 2-3 shows these controls on the front of the S/5 Aespire. Item Description Auxiliary Common Sends fresh gas to the ACGO when the switch is Gas Outlet switch activated. The ACGO may be used to provide fresh (ACGO) gas to an external manual breathing circuit.
  • Page 17 2 System Controls and Menus Item Description Canister release Push to remove the canister. This allows the breathing system to vent to the room. Be sure to hold the canister by the handle before releasing the canister. Note: Always do a leak test after operating the canister release.

  • Page 18: Acgo

    Aespire 7900 Item Description Bag / Mechanical Selects between manual ventilation (bag) or Ventilation switch mechanical ventilation (ventilator). Mechanical ventilation Off (gas to bag): Mechanical ventilation On (gas to bellows): Bag arm (optional) Squeeze at (1) to raise or lower the arm. The Bag arm rotates at (2).

  • Page 19: Scavenging The Acgo Sample Flow

    2 System Controls and Menus • Fresh gas oxygen concentration is displayed on the ventilation screen. Set alarm limits appropriately. Note that fresh gas oxygen concentration may not reflect FiO in rebreathing circuits such as the Mapleson series. Use an external O monitor if using a rebreathing circuit on ACGO.

  • Page 20: Scavenging From The External Manual Breathing Circuit

    Aespire 7900 Scavenging from the If the external manual breathing circuit is to be used with N O or volatile anesthetics, the exhaust should be scavenged. external manual An auxiliary inlet is available for active AGSS units. It provides a 30 mm male breathing circuit connection into the auxiliary port under the breathing system.
  • Page 21 2 System Controls and Menus Item Description Concentration Push the release and turn the concentration control control and release to set the agent concentration. The Tec 6 Plus concentration control does not turn as long as the warm-up indicator is on. 2-11 1009-0632-000...

  • Page 22: Ventilator Controls

    Aespire 7900 Ventilator controls Optional Features The Aespire 7900 can be equipped with several optional ventilation functions. References made in this manual to SIMV and PSVPro modes, are only applica- ble to systems equipped with these functions. Control panel Ventilator controls include: •...
  • Page 23 2 System Controls and Menus • The system switch, which powers the ventilator. • The Bag/Vent switch, which starts and stops mechanical ventilation. Item Description Menu key Shows the main menu. Alarm silence key Silences most alarms for 120 seconds. and indicator Pushing the key when no alarm is active pre-silences low and medium priority alarms, except Minimum Monitoring,...

  • Page 24: How To Set Controls

    Aespire 7900 How to set controls The bottom of the screen shows control settings. Notes: • The ventilator will not allow the setting of values it cannot supply. A reject tone will sound or a message will appear on the screen.

  • Page 25: How To Use The Menu

    2 System Controls and Menus How to use the menu Screens go back to the normal display 25 seconds after the last action. During a calibration or other procedure, the screen shows the instructions. Step 1 Push the Menu key to see the main menu.

  • Page 26: Menu Map

    Aespire 7900 Menu map Figure 2-6 shows the menu map. The table tells you about some of the options. Note: If the Alarm Settings page shows Auto Limits On during mechanical ventilation, the system automatically calculates alarm limits. Figure 2-7 • Menu map...

  • Page 27: More About Menu Functions

    2 System Controls and Menus More about menu functions Menu Option Function Main Cardiac Bypass Turns off volume and apnea alarms when these are not appropriate (e.g., during (In Progress/No) heart lung bypass). ◊ Alarm Settings Circuit Leak Turns off the alarm tone for circuit leaks. You must set the low alarm first.

  • Page 28: How To Change Menu Settings

    Aespire 7900 How to change menu This example changes alarm limits. settings The screen goes back to the normal display 25 seconds after the last action. Step 1 Select the desired menu. Step 2 Turn, then push the knob to select an option.

  • Page 29: Optional Auxiliary O Flowmeter And Suction Regulators

    2 System Controls and Menus Optional auxiliary O flowmeter and suction regulators These options are available: • Auxiliary O flowmeter • A continuous suction regulator or a venturi suction regulator 1. Auxiliary O Flowmeter outlet 2. Auxiliary O Flowmeter 3. Auxiliary O flow control Figure 2-8 •...
  • Page 30 Aespire 7900 Suction regulator controls Mode switch: MAX: for maximum suction, set the switch to M M M M A A A A X X X X . On (|): for adjustable suction, set the switch to on (|) or Off (O): to turn off suction, set the switch to O.
  • Page 31 3 Operation and Tutorial w w w w WARNING In addition to volume apnea and low airway pressure alarms, other ventilator alarms are included to indicate potential hazard conditions. All alarms that occur should be investigated to help ensure adequate patient safety. Desiccated (dehydrated) absorbent material may produce dangerous reactions when exposed to inhalation anesthetics.
  • Page 32 Aespire 7900 In this section This section describes specific tasks. Use it as a step-by-step guide or a training tool. Turn on the system ..........3-4 Set the alarm loudness .

  • Page 33: Pre-Use Check List

    3 Operation and Tutorial Pre-use check list Connect the power cord to a wall outlet. Prior to each case check all the ventilator settings to ensure they are appropriate for the patient. 1. Check that the mains electrical indicator is lighted. 2.

  • Page 34: Turn On The System

    Aespire 7900 Turn On the system Step 1 Connect the power cord to a wall outlet. The mains indicator comes on when AC Power is connected. Step 2 Set the system switch to On (|). Step 3 The display shows the power-up screen, and the system does a series of self tests.

  • Page 35: Set The Alarm Loudness

    3 Operation and Tutorial Set the alarm loudness Step 1 Select the Screen and Audio Setup menu. • Push the menu key. • Turn, then push the knob to select Screen and Audio. Step 2 Turn, then push the knob to select alarm loudness.
  • Page 36 Aespire 7900 Step 3 Turn, then push the knob to adjust the volume. Then • The volume range is 1 to 5 (loudest). • As the volume is changed, the system sounds test tones. • Push the knob to save the change.

  • Page 37: Show Or Hide Alarm Limits And Units

    3 Operation and Tutorial Show or hide alarm limits and units To simplify the displays, hide alarm limits and units of measurement. If the alarm limits are hidden, the screen automatically shows the limits when: • An alarm occurs. • Volume alarms are off or the auxiliary common gas outlet is selected (monitoring off).

  • Page 38: Turn The Volume Alarms On Or Off

    Aespire 7900 Step 2 Turn, then push the knob to select Alarm Limits or Units of Measure. Step 3 Show Turn, then push the knob to select Show or Hide. Push the knob to save the change. Then Hide Turn the volume alarms on or off...

  • Page 39: Set Alarm Limits

    3 Operation and Tutorial Set alarm limits ◊ Note: If the Alarm Settings page shows Auto Limits during mechanical ◊ ventilation, the system is set to automatically calculate limits. Step 1 Select the Alarm Settings menu. • Push the menu key. •...

  • Page 40: Set An Audible Alarm For Circuit Leaks

    Aespire 7900 Set an audible alarm for circuit leaks The patient circuit leak alarm is activated if less than half of the inspired volume returns through the expiratory flow sensor during mechanical ventilation. To prevent nuisance alarms from a known leak (e.g., an un-cuffed endotracheal tube), set the audio to Off.

  • Page 41: Set Cardiac Bypass

    3 Operation and Tutorial Step 2 Turn, then push the knob to select circuit leak audio. Step 3 Turn, then push the knob to change the Audio On setting. You must push the knob to save the Then Audio Off change.
  • Page 42 Aespire 7900 Step 1 Select the Cardiac Bypass menu item: • Push the menu key. • Turn, then push the knob to select Cardiac Bypass In Progress. Step 2 Push the knob again to return to No. 3-12 1009-0632-000...

  • Page 43: Start Mechanical Ventilation

    3 Operation and Tutorial Start mechanical ventilation w w w w WARNING Make sure the patient circuit is correctly assembled and the control settings are correct before you start ventilation. This example assumes the system is on and in manual ventilation (bag) mode. Step 1 Make sure the control settings are clinically appropriate.

  • Page 44: Stop Mechanical Ventilation

    Aespire 7900 Stop mechanical ventilation Step 1 Make sure a manual circuit is set up and the APL valve setting is OK before stopping mechanical ventilation. This valve adjusts the breathing system pressure limit during manual ventilation. The scale shows approximate pressures.

  • Page 45: Alarms

    3 Operation and Tutorial Alarms Alarms appear at the top of the screen. The highest priority alarm is shown in Area 1, the next highest priority alarm in area 2. If all areas are used, the lowest priority alarms cycle in area 4. Alarm Tones Alarm tones tell you about the alarm priority: •...

  • Page 46: Set The Ventilation Mode

    Aespire 7900 Set the ventilation mode Text below the waveform shows the ventilation mode: • Pressure controlled modes supply a set pressure during inspiration. • Volume controlled modes supply a set tidal volume. Step 1 Select the Ventilation Mode. • Push the menu key.
  • Page 47 3 Operation and Tutorial Step 3 Set the highlighted control parameter. Each mode has one parameter that must be set (VT for Volume and SIMV, Pinspired for Then Pressure, and Psupport for PSVPro). • Turn, then push the knob to set the value.

  • Page 48: Set Ventilator Controls

    Aespire 7900 Set ventilator controls Optional features The Aestiva 7900 can be equipped with several optional ventilation functions. References made in this manual to SIMV and PSVPro modes, are only applicable to systems equipped with these functions. The ventilator controls present are based on the ventilation mode.

  • Page 49: Volume Control Mode

    3 Operation and Tutorial This control sets the inspiratory to expiratory ratio of mechanical breaths supplied to the patient. Insp. Termination Level This parameter sets the percentage of the peak inspiratory flow where the ventilator stops a pressure supported breath. Only active in SIMV and PSVPro modes.

  • Page 50: Pressure Control Mode

    Aespire 7900 Settings Rate Plimit PEEP Range 20 - 1500 4 - 100 2:1 - 1:8 12 - 100 Off, 4 - 30 Increments varies 1 bpm 1 cmH2O 1 cmH2O Increments of 1mL from 20 to 50, 5 mL from 50 to 100, 10 mL from 100 to 300,...
  • Page 51 3 Operation and Tutorial During backup ventilation, the ventilator will ventilate the patient using the SIMV-PC + PSV mode. All parameters shown are active in this mode. Settings Pinspired Rate Tinspired Psupport PEEP Range 5 - 60 2 - 60 0.2 - 5.0 Off, 2-40 Off, 4 - 30...

  • Page 52: Set Inspiratory Pause (Volume Modes)

    Aespire 7900 Set inspiratory pause You can only use inspiratory pause in Volume Control or SIMV modes. In pressure modes, Inspiratory Pause displays a message “No Pause w”. (volume modes) When Pause is on, the inspiratory volume stays in the patient’s lungs for the set pause time at the end of inspiration.
  • Page 53 3 Operation and Tutorial Step 2 Turn, then push the knob to select Inspiratory Pause. Step 3 Turn, then push the knob to change the setting. You must push the knob to save the 20% of T Then change. 3-23 1009-0632-000...

  • Page 54: Set Simv And Psvpro Controls

    Aespire 7900 Set SIMV and PSVPro controls The SIMV and PSVPro modes allow the user to set additional ventilator controls. The Pinspired, Rate, Tinspired, Psupport and PEEP controls can be set using the selection keys. The Plimit, Trigger Window, Flow Trigger Level, and Inspiratory Termination Level may be set through the Setup/Calibration menu.
  • Page 55 3 Operation and Tutorial Step 3 Turn, then push the knob to select a setting. Step 4 Turn, then push the knob to change the setting. You must push the knob to save the Then change. 3-25 1009-0632-000...

  • Page 56: Silence Alarms

    Aespire 7900 Silence alarms The alarm silence key silences current alarms for 120 seconds. When no alarm is active, holding down the alarm silence key for one second pre- silences low or medium priority alarms for 90 seconds. Minimum monitoring cannot be pre-silenced.

  • Page 57: Reading The Pressure Waveform (Paw)

    3 Operation and Tutorial Reading the pressure waveform (Paw) Different points on the waveform are instantaneous values for measured pressures. The horizontal axis indicates the time scale for the rate, I:E ratio, and inspiratory pause (volume control setting). The vertical axis indicates the pressure.
  • Page 58 Aespire 7900 Example Volume Control • PEEP: Off • Maximum sensed inspiratory pressure (Pmax): 25 • Mean positive airway pressure (Pmean): 11 Figure 3-1 • Paw waveform in Volume Control mode Example Pressure Control • Pmax: 34 • Upper pressure limit (Plimit): 40 •...
  • Page 59 3 Operation and Tutorial Example SIMV • Plateau pressure (Ppl): 15 • Inspiratory time (Tinspired): 1.5 • Inspiratory Pause: 60 Figure 3-3 • Paw waveform in SIMV mode. Example PSVPro • PEEP: 5 • Pressure support: 10 • Mean positive airway pressure (Pmean): 7 Figure 3-4 •...

  • Page 60: Measure Circuit Compliance

    Aespire 7900 Measure circuit compliance To measure compressible volume in patient tubes: 1. Set the ventilator to volume control mode. 2. Set a tidal volume (V ) of 500 mL 3. Set a rate of 10 breaths/min. 4. Set an I:E ratio of 1: 1 5.

  • Page 61: Show The Service Settings

    3 Operation and Tutorial Show the service settings The About Ventilator screen shows ventilator settings that can only be changed by an approved service representative. Item Software Version If you call for service, a representative may ask for this. Facility defaults or last Tells you if the system saves the current settings when settings you turn it off or goes back to facility defaults.
  • Page 62 Aespire 7900 Step 2 Turn, then push the knob to select About Ventilator. 3-32 1009-0632-000...

  • Page 63: Measure Circuit Compliance

    3 Operation and Tutorial Measure circuit compliance To measure compressible volume in patient tubes: 1. Set the ventilator in volume control mode. 2. Set a tidal volume (V ) of approximately 500 mL 3. Set a rate of 10 breaths/min. 4.
  • Page 64 Aespire 7900 3-34 1009-0632-000...

  • Page 65: Preoperative Tests

    In this section Aespire 7900 Preoperative tests schedules ......4-2 Inspect the System ..........4-4 Power failure alarm test .

  • Page 66: Aespire 7900 Preoperative Tests Schedules

    Aespire 7900 Aespire 7900 Preoperative tests schedules Test Intervals Do the Preoperative tests listed below at these events: 1. Every day before the first patient. 2. Before each patient. 3. When required after a maintenance or service procedure. The following table indicates when a test must be done and gives a page number location where the test can be found.

  • Page 67: Test Devices

    If a test failure occurs, do not use the equipment. Have an approved service representative repair the equipment. Test devices The following test tools are needed for some of the tests. Datex-Ohmeda Item Ref. Positive pressure leak test device (BSI, 25 kPa)

  • Page 68: Inspect The System

    Aespire 7900 Inspect the System w w w w WARNING Make sure that the breathing circuit is correctly connected and not damaged. w w w w WARNING The upper shelf weight limit is 34 kg (75 lb). Make sure that: 1.

  • Page 69: Power Failure Alarm Test

    4 Preoperative Tests 13. Connect the power cord to a wall outlet. The mains indicator comes on when AC Power is connected. • If the indicator is not on, the system does not have mains (electrical) power. Use a different outlet. Close the circuit breaker or replace or connect the power cable.

  • Page 70: Pipeline And Cylinder Tests

    Aespire 7900 5. Set the system switch to Standby. Pipeline and cylinder tests w w w w CAUTION To prevent damage: • Open the cylinder valves slowly. • Do not force the flow controls. If your system does not use cylinder supplies, do not do steps 2 through 12.

  • Page 71: Flow Control Tests

    4 Preoperative Tests • If there is a leak, install a new cylinder gasket and tighten the tee handle as shown in “How to install gas cylinders (high pressure leak test)” of the section ‘1 Setup and Connections’ in Part 2 of this manual.
  • Page 72 Aespire 7900 Important Test the O monitor as described in Alarm tests, step 8, before continuing. To do the flow control tests: 1. Connect the pipeline supplies or slowly open the cylinder valves. 2. Turn all flow controls fully clockwise (minimum flow).

  • Page 73: Vaporizer Installation

    4 Preoperative Tests • Gas supply alarms occur on the ventilator if the ventilator uses O the drive gas. 11. Turn all the flow controls fully clockwise (minimum flow). 12. Reconnect the O pipeline supplies or open the O cylinder valve. 13.

  • Page 74: Vaporizer Back Pressure Test

    Aespire 7900 • Test each possible combination. • If more than one vaporizer turns on at the same time, remove the vaporizers, install them again, and complete steps 1 through 6. Vaporizer back pressure test w w w w WARNING Anesthetic agent comes out of the common gas outlet during this test.

  • Page 75: Low-Pressure Leak Test

    4 Preoperative Tests Low-pressure leak test w w w w WARNING Do not use a system with a low-pressure leak. Anesthetic gas will go into the atmosphere, not into the breathing circuit. Perform either the Negative low-pressure leak test or the ISO 5358 or BSI standard positive low-pressure leak test.
  • Page 76 Aespire 7900 circuit. Refer to the “Pneumatic problems” table in “Alarms and Troubleshooting” of Part 2 of this manual). • Disconnect the test device. 6. Test each vaporizer for low-pressure leaks: • Set the vaporizer to 1%. • Repeat step 5. If there is a low pressure leak, refer to Part 2 of this manual.

  • Page 77: Iso 5358 Or Bsi Standard Positive Low-Pressure

    4 Preoperative Tests ISO 5358 or BSI standard positive low-pressure leak test w w w w CAUTION Do a positive pressure leak test at the ACGO port only. 1. Connect the leak test device to the ACGO port with the positive pressure leak test adapter.Push the adapter into the ACGO port throughout the test to get a good seal.

  • Page 78: Alarm Tests

    Aespire 7900 9. Repeat this low-pressure leak test for each vaporizer: • Set the applicable vaporizer to 1% and do steps 2 through 8. • Fully open the needle valve on the test device to decrease the back pressure. • Turn the vaporizer off.
  • Page 79 4 Preoperative Tests 5. Turn the Bag/Vent switch to Bag and back. Make sure that: • Mechanical ventilation starts. • A subatmospheric pressure alarm does not occur. • The ventilator displays the correct data. • The bellows inflate and deflate during mechanical ventilation. 6.

  • Page 80: Breathing System Tests

    Aespire 7900 • Set the controls: APL Valve: Bag/Vent switch: • Mechanical ventilation stops when the Bag/Vent switch is set to Bag. • Close the patient connection and push the O Flush button. • Make sure that the sustained pressure alarm occurs after approximately 15 seconds at the sustained pressure limit (6-30 cm O varies with pressure limit).
  • Page 81 4 Preoperative Tests w w w w WARNING Objects in the breathing system can stop gas flow to the patient. This can cause injury or death: Do not use a test plug that is small enough to fall into the breathing system.

  • Page 82: Monitor And Ventilator Tests

    Aespire 7900 • Make sure that the value on the inspiratory pressure gauge is less than approximately 5 cm H • Push the O flush button. Make sure that the value on the inspiratory pressure gauge stays near zero. • Set the O...
  • Page 83 4 Preoperative Tests • The ventilator displays the correct data. • The bellows inflate and deflate during mechanical ventilation. 10. Set the ventilator controls and alarm limits to clinically appropriate levels. 11. If the system will not be used immediately, set the System switch to Standby and close all cylinder valves.
  • Page 84 Aespire 7900 4-20 1009-0632-000...

  • Page 85: Index

    Index ACGO 2-8 optional ventilation functions 2-12, 3-19 AGSS 2-10 antistatic breathing tubes or masks 2-2 APL valve 2-7 pipeline pressure 4-7 Auxiliary Common Gas Outlet switch 2-6 Pressure Control mode 3-21 adequate ventilation 3-25 Pressure controlled modes 3-17 alarm priority 3-16 PSVPro mode 3-21 backup ventilation 3-22 SIMV mode 3-21...
  • Page 86 Aespire 7900 1009-0632-000...

  • Page 87: Warranty

    Warranty This Product is sold by Datex-Ohmeda under the warranties set forth in the following paragraphs. Such warranties are extended only with respect to the purchase of this Product directly from Datex-Ohmeda or Datex-Ohmeda’s Authorized Dealers as new merchandise and are extended to the Buyer thereof, other than for the purpose of resale.
  • Page 88 Aespire 7900 User’s Reference Manual, English Part 1 1009 0632 000 10 04 A 01 21 03 Printed in USA ©Datex-Ohmeda, Inc. All rights reserved...

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