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Bistos BT-740 Operation Manual

Patient monitor
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BT-740 Patient monitor
Operation Manual
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P/N : 740-ENG-OPM-EUR-D03

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Summary of Contents for Bistos BT-740

  • Page 1 BT-740 Patient monitor Operation Manual Keep this manual for future reference P/N : 740-ENG-OPM-EUR-D03...
  • Page 2 Information furnished by Bistos Co., Ltd is believed to be accurate and reliable. However, no responsibility is assumed by Bistos for its use, or any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Bistos Co., Ltd.

  • Page 3: Table Of Contents

    BT-740 Operation manual Contents 0. Safety information ······················································································ 6 0.1 General precautions, warnings and cautions ···························································· 9 0.2 Shock hazards ············································································································· 13 0.3 Battery warnings········································································································· 14 0.4 General precautions on environment ······································································· 15 1. System basics ······························································································ 16 1.1 Intended use ··············································································································· 16 1.2 Operating principle ·····································································································...
  • Page 4 BT-740 Operation manual 6.4 Alarm states ················································································································ 52 6.5 Alarm setup ················································································································· 54 6.6 Latch alarm ················································································································· 57 6.7 Manual event ············································································································· 58 6.8 Alarm record ·············································································································· 58 7. ECG ·············································································································· 59 7.1 Overview ····················································································································· 59 7.2 Safety information ····································································································· 60 7.3 Monitoring steps ········································································································...
  • Page 5 21. Common faults and maintenance ······························································· 115 22. Manufacturer’s declaration on EMC ··························································· 116 22.1 Electromagnetic emissions ······················································································· 117 22.2 Recommended separation distances between portable and mobile RF communications equipment and BT-740 ····································································································· 118 22.3 Electromagnetic immunity ······················································································· 119 P/N : 740-ENG-OPM-EUR-D03 Bistos Co., Ltd.
  • Page 6 BT-740 Operation manual Product Warranty ······························································································ 121 Figure 1-1: Front view ············································································································ 21 Figure 1-2: Side view ············································································································· 21 Figure 1-3: Rear view ············································································································· 22 Figure 1-4: Front view ············································································································ 23 Figure 1-5: Side view ············································································································· 24 Figure 1-6: Rear view ············································································································· 25 Figure 1-7: Standard display ··································································································...

  • Page 7: Safety Information

    BT-740 Operation manual Safety information Before using BT-740 Patient monitor, read this entire manual and be fully understood the following safety information to prevent injury of patient and user. Symbols Used The following symbols identify all instructions that are important to safety. Failure to follow these instructions can lead to injury or damage to the patient monitor.
  • Page 8 BT-740 Operation manual Indicates USB interface. Indicates power adapter polarity. Indicates the production date. Indicates the manufacturer. Indicates the serial number of the device. Indicates the authorized representative in the European Community of manufacturer. Indicates a defibrillation-proof type BF applied part.
  • Page 9 BT-740 Operation manual Indicates the device contains natural rubber latex.(Accessories) Indicates the packing material is recyclable. Indicates to not dispose the device together with unsorted municipal waste(for EU only). The solid bar symbol indicates that mains adapter is put on the market after 13 August 2005.

  • Page 10: General Precautions, Warnings And Cautions

    Beyond the conditions, the patient monitor may not function properly and the measurement results may not accurate and may result in device failure or endangering the patient’s safety. Do not operate the BT-740 patient monitor if it fails to pass the power on self-test • procedure.
  • Page 11 BT-740 Operation manual system while monitoring the patient, because too low alarm volume or muted alarm may result in notice failure of alarm situation and endanger the patient’s safety. Please pay close attention to the actual clinical status of the patient.
  • Page 12 • An operator may only perform maintenance procedures specifically described in this manual. Do not remove the covers of a BT-740 yourself to avoid damage to the • equipment and unexpected electrical shock. Only qualified Bistos service engineer must repair or replace components.
  • Page 13 BT-740 Operation manual instruction for use, in risk of external high voltage. • Do not connect any equipment or accessories that are not approved by the manufacturer or according to IEC 60601-1 to the monitor. The operation or use of non-approved equipment or accessories with the monitor is not tested or supported, and monitor operation and safety are not guaranteed in such a case.

  • Page 14: Shock Hazards

    BT-740 Operation manual 0.2 Shock hazards WARNING Unplug the monitor from its power source prior to cleaning or maintenance to  prevent personal injury or equipment damage. Some chemical cleaning agents may be conductive and leave a residue that may ...

  • Page 15: Battery Warnings

    BT-740 Operation manual 0.3 Battery warnings WARNING Improper operation may cause the internal lithium ion battery to be hot, ignited or  exploded, and it may lead to the decrease of the battery capacity. It is necessary to read the operation manual carefully and pay more attention to warning message.

  • Page 16: General Precautions On Environment

    Power off when the Do not disjoint or equipment is not fully disassemble the device. ready to operate. Bistos Co., Ltd. does not Otherwise, the have liability of it. equipment could be damaged. P/N : 740-ENG-OPM-EUR-D03 Bistos Co., Ltd.

  • Page 17: System Basics

    The BT-740 patient monitors are intended to be used only under regular supervision of clinical personnel.
  • Page 18 BT-740 Operation manual 5) Indications and contraindications Blood oxygen saturation (SpO Indication: Monitoring effectives of oxygen therapy A reading is needed to facilitate the completion of an early warning score to inform clinical assessment Sedation or anesthesia Transport of patients who are unwell and require oxygenation assessment Haemodynamic instability (e.g.

  • Page 19: Operating Principle

    BT-740 Operation manual Electrocardiography (ECG) Indication: The electrocardiogram (ECG) has proven to be among the most useful diagnostic test in clinical medicine. It is routinely used in the evaluation of patients to detect myocardial injury, ischemia and the presence of prior infarction, in the assessment of patients with electrolyte abnormalities, drug toxicities and implanted defibrillators and pacemakers.

  • Page 20: System Configurations

    BT-740 Operation manual 1.3 System configurations Basic configuration of BT-740 • Main body with 8” touch screen and built-in lithium-ion battery • ECG cable and electrode • Adult SpO2 probe and extension cable • Non-invasive blood pressure cuff • Temperature probe •...
  • Page 21 BT-740 Operation manual Picture Name Description ECG cable and lead wire Measures ECG (standard) ECG electrode Electrode for ECG measurement (standard) Adult SpO2 sensor SpO2 sensor for adult (standard) extension Cord to connect the SpO2 sensor and cord main body...

  • Page 22: Product Outlook

    BT-740 Operation manual 1.4 Product outlook Figure1-1: Front view Figure1-2 : Side view P/N : 740-ENG-OPM-EUR-D03 Bistos Co., Ltd. 2018.05...
  • Page 23 BT-740 Operation manual Figure1-3 : Rear view P/N : 740-ENG-OPM-EUR-D03 Bistos Co., Ltd. 2018.05...

  • Page 24: Description Of Monitor

    BT-740 Operation manual 1.5 Description of monitor Figure1-4: Front view Name Description Indicates the priority of physiological alarm and technical alarms in different colors and flashing frequencies. Alarm indicator High priority: Red, fast flashing (1.4 ~ 2.8 Hz) Medium priority: Yellow, slow flashing (0.4 ~ 0.8 Hz)
  • Page 25 BT-740 Operation manual Start and stop the non-invasive blood pressure measurement. [NIBP start/stop] Rotate: move the cursor. Control knob Press: select the menu or execute a command. Enter to the setting mode. Press again to close the setting mode. [Setting] Freeze/unfreeze the waveform.
  • Page 26 BT-740 Operation manual NIBP NIBP cuff interface Figure1-6: Rear view Name Description Battery cover Battery compartment cover Handle Handle for main body transport Bracket To wall mount the monitor Air intake For ventilation Auxiliary output interface Nurse call Network port...

  • Page 27: Understanding The Display

    BT-740 Operation manual 1.6 Understanding the display Figure 1-7: Standard display Name Description Include patient information, alarm status icon, Information area physiological and technical alarms. Mainly display the waves of physiological Waveform area parameters with name of the parameter on the left side.

  • Page 28: Smart Hotkeys

    BT-740 Operation manual 1.7 Smart Hotkeys Smart hotkeys are graphic hotkeys displayed at the bottom of the main screen of the monitor, and enable the user to use specific features conveniently. Name Description [Pause] Alarm pause [Pat. Set] Patient information setting...

  • Page 29: Essential Performance

    BT-740 Operation manual 1.8 Essential performance The multi-function patient monitor BT-740 provides various patient vital signs such as pulse rate, ECG, respiration, blood oxygen saturation, blood pressure and temperature by placing or inserting the various sensors to the appropriate site of patient. The device is composed with display, control circuit and panel, and input part for various sensors.

  • Page 30: Preparing For Operation

    2.1.1 Unpack and check BT-740 patient monitor was inspected rigorously at the factory before delivery, in order to avoid being hit when transported, carried out careful packaging. Before unpacking, carefully inspect the package. If any damage, please immediately contact the Bistos. Unpack in the correct way, carefully remove the monitor and accessories from the box and check with the packing list.
  • Page 31 BT-740 Operation manual 2.1.2 Placement requirements Equipment installation must meet: Ensure that the operating floor and the monitor have enough space for connecting the accessory wires. 2.1.3 Power requirements DC power supply adapter Input: A.C. 100 V ~ 240 V, 50/60 Hz Output: D.C.

  • Page 32: Connecting To Power

    BT-740 Operation manual 2.2 Connecting to power WARNING Do not try to open the monitor when the power is connecting.  During the operation, do not disconnect any cable.  Connect to power adapter in the following steps: Make sure that the AC power supply meets the following specifications: a.c.100V- 240V, 50/60Hz.

  • Page 33: Basic Operations

    If any fatal error occurs during self-test, the system will alarm. If this case persists, please stop to using the monitor and contact the maintenance personnel or Bistos. Check all available monitor functions to ensure that the monitor operate properly.

  • Page 34: Turn Off

    BT-740 Operation manual 3.1.4 Start monitoring Start monitoring in the following steps: Check if the patient cable and the sensor are connected properly. Check if the settings of the monitor are corrects, such as patient type. For the details of parameter measurement or monitoring, see the appropriate section.
  • Page 35 BT-740 Operation manual 3.3.2 Using keys The monitor has three types of keys: Soft keys: Within the display these keys allow quick access to certain menus or performing certain actions, including: • Parameter hotkeys: Select a parameter area and enter the appropriate parameter setup menu, including drug calculation and time setup.

  • Page 36: Operation Mode

    BT-740 Operation manual Figure 3-1: “Settings” menu The style of other menus is basically similar to the “Settings”, and generally consists of the following components: • Menu title: A title of the current menu. • Close menu: Close the current menu. Exit the current menu or close the current menu and return to the previous menu.

  • Page 37: Measurement Setup

    BT-740 Operation manual  Select [Settings]Smart Hotkey or press [Setting] key on the monitor panel → “Settings”;  Select “Demo Mode>>” → enter the password and confirm, and the monitor enters the demo mode. • Exit demo mode:  Select...

  • Page 38: Other Common Setup

    BT-740 Operation manual 3.7 Other common setup The common setup of the monitor is the general setup that defines how the monitor works, for example: alarm volume setting. They may affect the setup of multiple measurements or display interfaces. 3.7.1 Defining the monitor...
  • Page 39 BT-740 Operation manual 3.7.3 Date and time Set the monitor time in the following steps: Select [Settings]Smart Hotkey or press [Setting] key on the monitor panel →  “Settings”; Select “User Maintenance >>” →enter the password and confirm →“User Maintenance”...
  • Page 40 BT-740 Operation manual Touch Volume Select 【Volume】smart hotkey → “Volume Setup” menu.  Select “Touch Volume”: Set touch volume from 0 to 9. 0 means off.  Key Volume Select 【Volume】smart hotkey → “Volume Setup” menu.  Select “Key Volume”: Set key volume from 0 to 9. 0 means off.

  • Page 41: Patient Information Management

    BT-740 Operation manual Patient information management Connect the patient to the monitor, and the monitor will display and store the physiological data of the patient, so the patient can be monitored without admitting the patient. However, admitting the patient correctly is very important.

  • Page 42: Admitting A Patient

    BT-740 Operation manual Figure 4-1 “Patient” menu 4.2 Admitting a patient Admit a patient as follows: In “Patient” menu, select “Quick Admit” → “Warning” message → “OK” → “Quick Admit” menu, as shown in Figure 4-2. Figure 4-2 “Quick Admit” menu Select “Patient Type”, and set the patient category as needed: “Adult”...

  • Page 43: Patient Information

    BT-740 Operation manual 4.3 Patient information To edit patient information, operate as follows: In the “Patient” menu, select “Patient Info”. The “Patient Info” menu as shown in Figure 4-3 will be displayed. Figure 4-3. “Patient Info” menu Select “Last Name”, and enter patient’s surname through the soft keyboard（Letters: not more than 20 characters）.

  • Page 44: Discharging A Patient

    BT-740 Operation manual Select “Height(cm)”, and set the patient’s height via the pop-up keyboard on the screen(Range: 0～250). Select “Weight (kg)”, and set the patient’s weight via the pop-up keyboard on the screen(Range: 0～350). 10. Select “Blood Type”, and set the patient’s blood type: A, B, AB or O.

  • Page 45: Clear Nibp Trend

    BT-740 Operation manual 4.7 Clear NIBP trend To clear NIBP trend, operate as follows: In the “Patient” menu, select “Clear NIBP Trend” → “Warning” message → “OK” to finish the operation of clear NIBP trend. After the NIBP trend was cleared, all the information of NIBP trend stored in the monitor will be cleared.

  • Page 46: Display Format

    BT-740 Operation manual Display format The monitor has four display format, which are “Normal Screen”, “Big ECG Screen”, “Big font Screen”, and “ECG 7-Lead Full-Screen”. The user can select the display format according to needs, and get different screen information.

  • Page 47: Display Description

    BT-740 Operation manual 5.2 Display description 5.2.1 Normal display format Figure 5-1: Standard Display The normal display provides the parameter wave being monitored and the parameters displayed in the parameter area. This is the basic display of the monitor. In this display mode all parameters, two ECG waves, one blood oxygen saturation percentage wave, one respiratory wave are displayed.
  • Page 48 BT-740 Operation manual 5.2.2 Big ECG format The big ECG format is as shown in Figure 5-2. Figure 5-2: Big ECG format 5.2.3 Big font format The big font format is as shown in Figure 5-3. Figure 5-3: Big font format P/N : 740-ENG-OPM-EUR-D03 Bistos Co., Ltd.
  • Page 49 BT-740 Operation manual 5.2.4 ECG 7-Lead full screen format The ECG 7-Lead full screen format is as shown in Figure 5-4. Figure 5-4: ECG 7-Lead full screen format P/N : 740-ENG-OPM-EUR-D03 Bistos Co., Ltd. 2018.05...

  • Page 50: Alarm

    BT-740 Operation manual Alarm Alarm means that the monitor prompts the medical staff through sound and light when the abnormal changes in vital signs are monitored or the monitor has a failure or is unable to monitor the patient successfully.

  • Page 51: Alarm Condition Priorities

    BT-740 Operation manual 6.2 Alarm condition priorities According to the severity of the alarm conditions, the physiological alarms of the monitor can be divided into high priority, medium priority and low priority. High priority alarms  The patient is in critical condition that is life-threatening, and should be immediately rescued, or the monitor has a serious mechanical failure or malfunction, causing it unable to detect the patient's critical state and endangering the patient’s life.
  • Page 52 BT-740 Operation manual 6.3.1 Visual alarm When an alarm occurs, the alarm indicator will flash in different colors and frequencies to prompt the alarm priority. High priority alarm: Red, fast flashes.  Medium priority alarm: Yellow, slow flashes.  Low priority alarm: Yellow, lit without flashing.

  • Page 53: Alarm States

    BT-740 Operation manual 6.3.4 Parameter flashing When the physiological parameter values in the parameter area will flash once per second, and the upper limit and lower limit of the parameter will also flash at the same frequency, it indicating that the parameter exceeds the upper limit or lower limit.
  • Page 54 BT-740 Operation manual 6.4.2 Alarm sound off The alarm sound can be turned off through the following operations: Select [Settings] smart hotkey→ “Settings”.  Select “User Maintenance >>”→enter the password and confirm →“User Maintenance”  menu. Select “Alarm Param >>”→“ Alarm Param” menu.

  • Page 55: Alarm Setup

    BT-740 Operation manual Select [Settings]Smart Hotkey or press [Setting] key on the monitor panel →  “Settings”. Select “User Maintenance >>” → enter the password and confirm →“User Maintenance”  menu. Select “Alarm Param >>”→“ Alarm Param” menu.  Select “Alarm Pause Time”, and set the alarm pause time.
  • Page 56 BT-740 Operation manual Select [Settings] smart hotkey or press [Setting] key on the monitor panel →  “Settings”. Select “User Maintenance >>” → enter the password and confirm → “User Maintenance”  menu. Select “Alarm Param >>” → “Alarm Param” menu.
  • Page 57 BT-740 Operation manual 6.5.3 Setting a parameter alarm You can set the parameter alarm for every alarm separately. For SpO , as an example, select “Alarm Setup >>” in the “Settings” menu and select “SpO ” and enter the SpO alarm setup menu.

  • Page 58: Latch Alarm

    BT-740 Operation manual Select “Default”, and restore the alarm setup to the factory setup.  NOTE When setting the upper and lower alarm limits, confirm the patient category and  set its range according to the clinical need. If the setting exceeds the alarm limits, the alarm system will fail easily.

  • Page 59: Manual Event

    BT-740 Operation manual 6.7 Manual event In the patient monitoring process, some events may have an impact on the patient, resulting in changes of some monitoring waves or parameters. In order to assist in the analysis of these effects, you can...

  • Page 60: Ecg

    BT-740 Operation manual 7.1 Overview Electrocardiogram (ECG) is produced by the continuous electrical activity of the patient's heart, and displayed with wave and numeric on the monitor in order to accurately assess the physiological state of the patient at the time. The ECG cable should be connected properly, so as to obtain a correct measurement value and normal display.

  • Page 61: Safety Information

    BT-740 Operation manual 7.2 Safety information WARNING To monitor ECG signal, ECG cable and ECG electrodes specified in this manual  must be used. When connecting the electrodes or patient cable, make sure that the patient is  absolutely not connected with any other conductive parts or in contact with the ground.

  • Page 62: Monitoring Steps

    BT-740 Operation manual 7.3 Monitoring steps 7.3.1 Preparation Before placing the electrode, prepare the patient’s skin in the following steps. Skin preparation: Since the skin is a poor conductor, it is very important to treat the  patient's skin for electrode placement appropriately to make good contact between the electrode and the skin.
  • Page 63 BT-740 Operation manual 7.3.3 Lead name and corresponding color The lead names in European standard and U.S. standard (represented with R, L, N, F, C in European Standard, and represented with RA, LA, RL, LL, V in the U.S. standard) are shown in Table 9 -1.
  • Page 64 BT-740 Operation manual 5-lead  The electrode placement position of 5-lead is shown in Fig. 9-2: R/RA electrode: placed below the clavicle, near the right shoulder.  L/LA electrode: placed below the clavicle, near the left shoulder.  N/RL electrode: placed on the right abdomen.
  • Page 65 BT-740 Operation manual 7.3.5 Checking the pacemaker Before ECG monitoring, it is very important to set the pace maker state of the patient properly. If the patient has a pacemaker, set “Pace Maker” to “Yes”, and the icon displays in the patient information area.

  • Page 66: Ecg Display

    BT-740 Operation manual 7.4 ECG display ECG wave display  The monitor displays two ECG waves on the normal screen. Fig. 7-3 below is the monitoring interface of 5-lead, and is for reference purposes only. The graphics displayed on your monitor may be slightly different.

  • Page 67: Ecg Setup

    BT-740 Operation manual 7.5 ECG setup Select the ECG parameter area or wave ECG area or select the [Settings] smart hotkey and “Parameter Setup >>” and “ECG Setup >>” to pop up the “ECG Setup” menu, which is as shown below.

  • Page 68: Alarm Setup

    BT-740 Operation manual wave gain factor appropriately; when the wave is high or the peak cannot be displayed, reduce the wave gain appropriately, gain can be set Auto/×0.25/×0.5/×1/×2. When Big ECG interface is selected, gain can be set Auto/×0.25/×0.5/×1/×2/×4. Select “Wave Speed”, and set the wave speed. The wave speed is ...

  • Page 69: Resp

    BT-740 Operation manual RESP 8.1 Overview Thoracic electrical bio impedance is a method used for measuring the respiration. When the patient is breathing, the thoracic impedance between two ECG electrodes changes due to thoracic activity. The monitor generates a respiratory wave on the screen by measuring the changing impedance value.

  • Page 70: Placing Electrodes For Respiration Monitoring

    BT-740 Operation manual 8.3 Placing electrodes for respiration monitoring Since the skin is a poor conductor, it is very important to treat the patient's skin for electrode placement appropriately to get better respiration signals. Refer to 7.3.1. Respiration measurement uses standard ECG cable and electrode placement method. You can use different ECG cables (3-lead or 5-lead).

  • Page 71: Respiration Display

    BT-740 Operation manual 8.3.2 Cardiomotility superimpose The effect of cardiomotility on the respiratory wave is called cardiomotility superimposing. When the respiration electrodes collect impedance changes caused by rhythmic blood flow, this will happen. Placing the respiration electrodes correctly will reduce this effect. The liver and ventricle should avoid the connection of respiration electrode, so that the heart or pulsating flow won’t generate artifact.

  • Page 72: Respiration Setup

    BT-740 Operation manual 8.5 Respiration setup Select the RESP parameter zone or respiration wave area → “RESP Setup” menu, which is shown below. You can set respiration through “RESP Setup” menu. Figure 8-4: “RESP Setup” menu 8.5.1 Setting apnea time Apnea alarm is a high level alarm for monitoring the apnea.

  • Page 73: Alarm Setup

    BT-740 Operation manual 8.5.4 Setting calculated channel In “RESP Setup” menu, select “Calculated Channel”, and set the calculated channel. The calculated channels are “RA-LA”, “RA-LL”, “LA-RL” and “LL-RL”. The default is “RA-LA”. 8.5.5 Setting sensitivity In “RESP Setup” menu, select “sensitivity”, and set the sensitivity. The sensitivity is “1” / “2” / “3”...

  • Page 74: Overview

    BT-740 Operation manual 9.1 Overview The mechanical activity of the heart causes arterial pulsation, and PR (pulse rate) value can be obtained by measuring this pulsation. PR value can be obtained through SpO measurement. The average calculation of the heart rate is the direct average method. The refresh rate is every 1 second.

  • Page 75: Spo

    BT-740 Operation manual 10.1 Overview Blood oxygen saturation (SpO ) is the percentage of oxyhemoglobin (HbO2) capacity bound by oxygen in the blood in the total hemoglobin (Hb) capacity that can be combined, that is, the concentration of oxygen in the blood.

  • Page 76: Safety Information

    BT-740 Operation manual 10.2 Safety information WARNING Please use SpO2 sensor specified in this Manual, operate in accordance with the  Manual, and observe all warnings and precautions. Before monitoring, check whether the sensor cable is normal. When SpO2 sensor ...

  • Page 77: Monitoring Steps

    BT-740 Operation manual 10.3 Monitoring steps Select the appropriate SpO sensor according to the patient. Turn on the monitor, and connect the SpO lead wire to the monitor. Clean the measurement site, such as finger with nail polish. Put the SpO sensor probe on the patient’s body.

  • Page 78: Display

    BT-740 Operation manual 10.4 Display SpO2 parameter area is as shown in figure 10-1. Figure 10-1: SpO parameter display SpO2 wave is as shown in figure 10-2. Figure 10-2: SpO wave P/N : 740-ENG-OPM-EUR-D03 Bistos Co., Ltd. 2018.05...

  • Page 79: Setting Spo

    BT-740 Operation manual 10.5 Setting SpO Select SpO parameter area or SpO wave area → “SpO Setup” menu, which is shown below. You can set SpO through “SpO Setup” menu. Figure 10-3: “SpO2 Setup” menu 10.5.1 Setting wave speed Select “Wave Speed” and set wave speed to “12.5mm/s” or “25mm/s”; the faster speed, ...

  • Page 80: Measuring Influencing Factors

    BT-740 Operation manual 10.6 Measuring influencing factors During operation, the following factors can affect the accuracy of SpO measurement: High-frequency radio wave interference, such as interference generated by the host  system or interference from electrosurgery instrument connected to the system.

  • Page 81: Technical Description

    BT-740 Operation manual 10.8 Technical description Accessories have passed the biocompatibility test and meet the requirements of ISO  10993-1. Fluke's index 2XL Oxygen Analyzer can be used to check the function of the monitor and  can be used to assess the accuracy of the pulse rate but cannot be used to assess the accuracy of blood oxygen.

  • Page 82: Nibp

    BT-740 Operation manual NIBP 11.1 Overview The monitor uses oscillometric method to measure noninvasive blood pressure (NIBP). The oscillometric method for measuring blood pressure is to inflate a cuff with a certain amount of pressure until the arterial blood flow has been completely blocked. As applied pressure decreases, the arterial blood flow which was completely occluded gradually opened, and completely opened.

  • Page 83: Safety Information

    BT-740 Operation manual 11.2 Safety information WARNING Do not carry out non-invasive blood pressure measurement on patients with  sickle cell disease and skin damage or any expected damage. Do not measure NIBP on traumatic body part. This may cause further injury.

  • Page 84: Measurement Limits

    BT-740 Operation manual 11.3 Measurement limits According to the patient's condition, the oscillometric method has some limitations. This measurement is to look for the regular pulse waves generated by arterial pressure. If the patient's condition makes this detection method difficult, the measured value becomes unreliable, and pressure measurement time increases.

  • Page 85: Measurement Procedure

    BT-740 Operation manual ambient humidity 30%～85%, no condensing, ambient temperature 5～40℃, Atmospheric pressure: 700hPa～1060hPa. NIBP performance and measurement accuracy will be affected beyond the range. 11.4 Measurement procedure 11.4.1 Prepare the measurement Turn on the monitor, and check if it works properly.
  • Page 86 BT-740 Operation manual 11.4.2 Patient posture requirements during measurement Sit comfortable or lie down relaxedly. No crossing legs. Back and elbow should be supported. The center of NIBP cuff and the right atrium are at in the same level. Remind patients, no talking during measurement and try to relax.

  • Page 87: Nibp Display

    BT-740 Operation manual 11.5 NIBP display NIBP measurement has no waveform display, and only displays NIBP measurement results in the parameter area, as shown in Fig. 11-1. The figure below is for reference only. The graphics displayed on the monitor may be slightly different.

  • Page 88: Clean And Disinfection Method Of Nibp Cuff

    BT-740 Operation manual 11.8 Clean and disinfection method of NIBP cuff If necessary, NIBP cuff and NIBP extension tube can be cleaned and disinfected together without separated 11.8.1 Cleaning method Prepare enzyme cleaning agent, distilled water and 10% solvent, respectively in different spray bottle.

  • Page 89: Temp

    BT-740 Operation manual TEMP 12.1 Overview The monitor has two temperature measurement channels; the temperature sensor will measure the body temperature, and calculate the difference between the body temperature data. The monitor is defibrillation proof, so the monitor operates normally after defibrillation.

  • Page 90: Measurement Requirements

    BT-740 Operation manual 12.4 Measurement requirements The normal measuring range of monitor is 0℃~50℃, and the accuracy is consistent in this range. The environmental temperature range for body temperature measuring is 5℃~40℃. Get the right temperature for the shortest measurement time is 40s, and the measuring interval is 1s.

  • Page 91: Setting Temperature Unit

    BT-740 Operation manual 12.6 Setting temperature unit You can define your favorite temperature unit as follows: Select TEMP parameter area → “TEMP Setup” menu.  In the “TEMP Setup” menu, set “Unit” to “℃” or “℉” 12.7 Alarm setup In “TEMP Setup” menu, select “Alarm Setup >>” to enter “Alarm Setup” interface, and set TEMP alarm switch, alarm level, upper and lower alarm limit.

  • Page 92: Review

    BT-740 Operation manual Review The monitor provides up to 168 hours trend data review of all monitoring parameters, 1000 groups of NIBP measurement data and 200 physiological alarm events, 100 technical alarm events. The user can select trend chart or trend table to view trend change; or view the latest wave.

  • Page 93: Reviewing Trend Table

    BT-740 Operation manual 13.2 Reviewing trend table Select [Trend] smart hotkey to enter “Trend” menu, select “Tabular” and enter the following window. Figure 13-2: “Trend” table Browse the trend table in the following method:  Select to turn pages to left or right and move the trend table to ...

  • Page 94: Nibp Measurement Review

    BT-740 Operation manual 13.3 NIBP measurement review Select 【Trend】smart hotkey to enter “Trend” menu, and select “NIBP” to enter the following window Figure 13-3: NIBP measurement review This window shows the measurement time of noninvasive blood pressure, systolic blood pressure “SYS”, diastolic blood pressure “DIA”, mean blood pressure “MAP” and pulse rate “PR”.

  • Page 95: Battery

    BT-740 Operation manual Battery 14.1 Overview The monitor has a built-in rechargeable battery to ensure that the monitor can also be used normally in case of patient transfer or power failure. When the monitor is connected to an DC power source, it will charge the battery no matter whether the monitor is turned on or not. In the case of power failure, the system will automatically use the battery to power the monitor to avoid interrupting the monitor working.

  • Page 96: Battery Usage Guide

    BT-740 Operation manual 14.2 Battery usage guide Battery life depends on the frequency and time of use. If the battery maintenance and storage are proper, the lithium battery life is three years. If you do not use the battery properly, its life may be shortened.

  • Page 97: Checking Battery Performance

    BT-740 Operation manual 14.3 Checking battery performance Please refer to the following steps to check the battery performance: Disconnect the monitor from the patient and stop all monitoring or measurement.  Connect DC power to the monitor, and charge battery for more than 4 hours ...

  • Page 98: Caring And Cleaning

    BT-740 Operation manual Caring and cleaning 15.1 Overview In the using process, please make sure that there is no dust on or near your device. To prevent damage, please use the diluted detergents and disinfectants specified in this Manual, and use the lowest possible concentration.

  • Page 99: Disinfection

    Wipe the monitor and sensor surface with medical alcohol, dry it naturally or with  clean, dry, lint-free cloth. Bistos is not liable for effectiveness of using these chemicals for infectious disease  control. Please consult the infectious disease control officers or experts of the hospital for advice.

  • Page 100: Maintenance

    BT-740 Operation manual Maintenance WARNING If the hospitals or institutions using this instrument can’t implement a • satisfactory maintenance schedule, it will result in device failure and may endanger human health. 16.1 Checking Check the following basic items before using the monitor: Check for any mechanical damage.

  • Page 101: Viewing Software Version Information

    “Monitor Info” menu displays the software version information of the monitor.  16.3 Maintenance plan The following tasks can only be done by qualified service personnel of Bistos. When the following maintenance is needed, please contact your service representative. Before testing or maintenance, clean and disinfect the device.
  • Page 102 BT-740 Operation manual Select “User Maintenance >>” →enter the password and confirm → “User Maintenance”  menu. Select “Module Maintenance >>” → “Module Maintenance” menu.  Select “ECG ”→ “ECG Maintenance” menu, and select “Calibration” to calibrate the ECG. ...

  • Page 103: Accessories

    BT-740 Operation manual Accessories WARNING Use the accessories specified in this manual. Using other accessories may • damage the monitor, or cannot reach the safety and performance claimed in this manual. The operating and storage environment of the monitor should meet the •...

  • Page 104: Specifications

    BT-740 Operation manual Specifications 18.1 Safety specifications 18.1.1 Product category In accordance with classification specified in the European Medical Device Directive 93/42/EEC, this monitor is Class IIb device. The monitor is classified as follows in accordance with IEC 60601-1: Category Name...

  • Page 105: Hardware Specifications

    BT-740 Operation manual 18.2 Hardware specifications Physical Characteristics Dimensions Main Unit: 260(W) X 200(H) X 78(D) Weight <= 1.8 Kg for standard configuration Display Type Color TFT touch screen LCD Size and resolution 8”, 800 X 600 pixels Audio Alarm sound (45 ~ 85 dB), key pressing sound...

  • Page 106: Functional Specification

    BT-740 Operation manual 18.3 Functional specifications 18.3.1 ECG/TEMP/RESP Standard compliance IEC 60601-2-27:2011 3 lead I, II, III Lead Type 5 lead I, II, III, aVR, aVL, aVF, V Auto, 2.5mm/mV(x0.25), 5 mm/mV(x0.5), Display sensitivity 10mm/mV(x1.0), 20mm/mV(x2.0) , 40mm/mV(x4.0) Wave sweep speed 12.5 mm/s, 25 mm/s, 50 mm/s...
  • Page 107 BT-740 Operation manual Ventricular bigeminy 80 ± 1 bpm Heart rate measuring Slow alternating ventricular bigeminy 60 ± 1 bpm accuracy and response to Rapid alternating ventricular bigeminy 120 ± 1 bpm irregular rhythm Bidirectional systoles 90 ± 2 bpm 1 mV, 206 bpm Ventricular tachycardia <10 s...
  • Page 108 BT-740 Operation manual 18.3.2 NIBP NIBP Standards compliant IEC 80601-2-30:2009 Measurement method Automatic oscillometric method Operating mode Manual, automatic, continuous Useful life 100, 000 times Measurement interval in 1/2/3/4/5/10/15/30/60/90/120/180/240/480min automatic mode Typical measurement 20~40s time Adult Pediatric Systolic blood pressure...
  • Page 109 BT-740 Operation manual 18.3.3 SpO Standards compliant ISO 80601-2-61:2011 Measurement accuracy verification The SpO accuracy has been verified in human experiments by Comparing with arterial blood sample reference measured with a CO-oximeter. Pulse oximeter measurements are statistically distributed and about two-thirds of the measurements are expected to come within the specified accuracy range compared to CO- oximeter measurements.

  • Page 110: Alarm Information

    BT-740 Operation manual Alarm information This chapter lists some important physiological and technical alarm information, and some alarms are not necessarily listed. Note that in this chapter: P column indicates the default alarm priority: H indicates high priority, M indicates middle priority, L indicates low priority, and “*” indicates priority set by the user.
  • Page 111 BT-740 Operation manual Source Alarm message Causes and countermeasures ST-III Too Low RR Too High Patient PR value is higher than the upper alarm limit or lower than the lower alarm limit. Check the patient's physiological condition, and check if...

  • Page 112: Technical Alarm

    BT-740 Operation manual 19.2 Technical alarms Source Alarm message Causes and countermeasures Connect to AC power supply, and charge the System Battery Low battery, and power with the battery as needed after fully charged. ECG Comm. Stop ECG module failure, or communication failure between the module and the host;...
  • Page 113 BT-740 Operation manual Source Alarm message Causes and countermeasures exceeds the measuring range. Patient’s pulse may be weak or cuff is too loose. Check the condition of the patient, and place the NIBP signal weak cuff in a suitable position. If the failure persists, replace the cuff.

  • Page 114: Default Parameter Configuration

    BT-740 Operation manual Default parameter configuration This chapter lists the important factory default settings of different departments in monitor configuration mode. Users can not change the default configuration, but can modify the settings as required and save as user-defined configuration.
  • Page 115 BT-740 Operation manual Module defaults Module Option Adult Pediatric Alarm limits 8~30 on 8~30 on Gain Wave velocity 12.5 12.5 Wave color Yellow Yellow Wave style Line Line Alarm source Alarm level Alarm record Alarm limits 50~120 on 75~160 on...

  • Page 116: Common Faults And Maintenance

    3． Check whether the deflating valve on blood pressure plate is normal. 4． Check whether the pressure sensor is normal. If the above doesn't solve the problem, please contact Bistos after-sales department or dealers. P/N : 740-ENG-OPM-EUR-D03 Bistos Co., Ltd.

  • Page 117: Manufacturer's Declaration On Emc

    EMC information provided in this user manual. Wireless communications equipment such as wireless home network devices, mobile phones, cordless telephones and their base stations, walkie-talkies can affect the BT-740 and should be kept at least 1 m away from the equipment.

  • Page 118: Electromagnetic Emissions

    BT-740 Operation manual 22.1 Electromagnetic emissions The BT-740 is intended for use in the electromagnetic environment specified below. The customer or the user of the BT-740 should assure that it is used in such an environment. Emissions test Compliance Electromagnetic environment - guidance The BT-740 uses RF energy only for its internal function.

  • Page 119: Recommended Separation Distances Between Portable And Mobile Rf Communications

    22.2 Recommended separation distances between portable and mobile RF communications equipment and BT-740 The BT-740 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the BT-740 can help prevent...

  • Page 120: Electromagnetic Immunity

    BT-740 Operation manual 22.3 Electromagnetic immunity The BT-740 is intended for use in the electromagnetic environment specified below. The customer or the user of the BT-740 should assure that it is used in such an environment. IEC 60601 Electromagnetic Immunity test...
  • Page 121 BT-740 Operation manual The BT-740 is intended for use in the electromagnetic environment specified below. The customer or the user of the BT-740 should assure that it is used in such an environment. Immunity test IEC 60601 test level Compliance level...
  • Page 122 Sales Agency Manufacture Bistos Co., Ltd. ※ Thank you for purchasing BT-740. ※ This product is manufactured and passed through strict quality control and inspection. ※ Compensation standard concerning repair, replacement, refund of the product complies with “Framework Act on Consumers” noticed by Fair Trade Commission of Republic of Korea.

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