Operation Manual 0 Safety information This manual is for users of the BT-350 fetal monitor. It describes how to set up and use the monitor and probes. Familiarize yourself with all instructions including warnings and cautions before starting to monitor patients.
The warnings and cautions in this section relate to the equipment in general and apply to all aspects of the monitor. The listed order does not imply any order of importance. WARNING Thoroughly read and understand the manual prior to use of BT-350. Failure to do so could result in personal injury or equipment damage.
The two probes are equipped to detect the fetal heart rate and heartbeat sound of twins. The detection and measurement result can be displayed on the LCD type(BT-350) or on LED type(BT-350E). Essential performance 1) The accuracy for the FHR should be within +/- 2% at the range 30 to 240 BPM.
BT-350 Operation Manual Accessory Name Description Z-folded type Paper Z-folder type thermal Paper Probe Belt Used for Holding Doppler Probe and/or UC Probe Power Cord AC Power cord Adaptor for transform AC Power Power Adaptor (100-240V ~) to DC 18V(2.8A)
BT-350 Operation Manual 1.4 Description of System components Name & Description ① TFT Color LCD ② Speaker ③ Power indicating LED (AC: Green / Battery: Orange) ④ Power ON/OFF button: Turns the power On or Off ⑤ Control knob DOP1 volume UP/DOWN button: Increase or decrease DOP1 fetal audio volume in ⑥...
BT-350 Operation Manual Name & Description ① DOP1/AST connector ② DOP2/AST connector ③ UC connector 1.5 Understanding the display 1.5.1Main monitoring screen of LCD display Figure 1-3 – Main monitoring screen of LCD display – Graph mode 1.5.1.1 Mode frame The mode frame shows the current mode.
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Indicating of the status of the auto printing function AC Power Icon Indicates the unit is operating on AC power Indicates the battery charge status (Only when the BT-350 is Battery Status Icon operated by battery, this icon is displayed.) USB Icon Indicating USB connection status.
The monitor displays the startup screen during the power-on-self-test. When the test is successfully completed the BT-350 displays the monitoring screen. If a malfunction is detected an error message displays and an error tone is sounded. The error tone will continue until the power is turned off.
BT-350 Operation Manual The operation of the button is as below. Symbol Name Description Power On/Off Button Turns the power on or off. Dop1 Volume Up/Down Decreases or increases Dop1 fetal audio volume in monitoring Button mode. Dop2 Volume Up/Down...
D requires one press down and F requires three press down. 2.3.7 Entering the patient ID Patient ID is generated automatically when BT-350 has turned on. This ID is composed of YYMMDD + 3 digits serial number. The 3 digits number can be changed manually.
The measured data can be saved to the monitor itself and USB, if connected, at the same time. For each patient, up to 3 hours of data can be saved. Totally 450 hours of data can be saved. The saved data can be totally copied moved from BT-350 to USB memory later. 2.5.1 How to save data Press down the mode button [ ] to activate the following menu.
BT-350 Operation Manual 2.7 CTG (Cardiotocography) analysis function The CTG analysis function is a computerized diagnosis of fetal heart rate and uterine contraction patterns. When this function is activated, a CTG algorithm monitors continuous FHR and UC value for 20 minutes and analyzes FHR variability and relative FHR response to UC change.
BT-350 Operation Manual 2.8 CCV (Cross-channel verification) function When monitoring two fetuses with two Doppler probes, CCV function will compare the values from both probes and alerts when the values could be the same source (fetus). If the difference between two probe values is within 2 bpm for more than 25 seconds during 30 seconds monitoring period, CCV alert will be generated and icon will be displayed.
BT-350 Operation Manual Symbol Name Description Decreases or increases Dop2 fetal audio volume in Dop2 Volume Up/Down Button monitoring mode. Makes the alarm sound enable or disable in monitoring Alarm On/Off Button mode. UC Reference Button Resets the UC baseline in monitoring mode.
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BT-350 Operation Manual 3.3.1 Alarm upper limit/lower limit set The upper and lower alarm limit can be changed. The adjustable range for upper limit is [Lower limit +10] ~ 240 BPM with 5 BPM step. The adjustable range for a lower limit is 30 ~ [Upper limit – 10] BPM with 5 BPM step.
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The fetal movement graph display can be turned on and off. Fig. 3.6 Auto printing 3.3.7 Printer paper select You can use two different types of paper, FS151-90-80R-01 and M1911A, with BT-350. If you press down the control knob during the self-test, you can select the printer paper. Paper...
BT-350 Operation Manual 3.3.10 IP address set Set the IP address as required. Fig. 3.10 IP address set 3.3.11 Subnet mask set Set the subnet mask as required. Fig. 3.11 Subnet mask set 3.3.12 Gateway set Set the gateway as required.
3 seconds seconds sound 1. Power on 2. DOP1 or DOP 2 is disconnected while BT- 350 is monitoring. 3. Paper is out while BT-350 is printing. Information 2 seconds 4. Printer door is opened while BT-350 is sound printing.
BT-350 Operation Manual A page from the top of the paper pack should drape forward over the shaft of the printer. The orientation of the paper is with the printed grid facing up (unfolding from the top of the pack) and the UC grid area is the right side.
BT-350 Operation Manual 6 Monitoring fetal heart rate 6.1 Electromagnetic interference Strong electromagnetic fields can interfere with the ultrasound transducer and cause a false heart rate reading that does not originate from the fetus. This interference is rare and usually found in the vicinity of large machinery. In order to avoid the possibility of these interferences, the following procedure should be followed whenever the monitor is to be used in a new location, or if it is known that electrical machinery is being operated in the vicinity.
BT-350 Operation Manual 6.3 Detail procedure Explain the procedure to the patient. Place a probe belt under the patient Turn the monitor on. Connect the ultrasound probe to the “DOP” connector. Apply a small amount of ultrasound coupling gel to the face of the transducer.
A strip chart printout of the patient record will also show this marker. 9 Cleaning and disinfection BT-350 requires proper care and preventive maintenance. This ensures consistent operation and maintains a high level of performance necessary in monitoring procedures.
BT-350 Operation Manual 9.2 Probes To avoid damage to the transducers, clean and disinfect according to the following instructions. WARNING Do not autoclave. Do not gas sterilize. Do not immerse in liquid. When using solutions, use sterile wipes to avoid pouring fluids directly on the ...
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BT-350 Operation Manual Power Input: AC 100 ~ 240 V, 50/60 Hz External Power adapter Output: DC 18V, 2.8A 14.8V, 2600mAh (Li-ion) Operating Time: 120 min Internal Battery Charging Time (100%) : 150 min Maximum charge-discharge cycles: 300 cycles AC-powered...
The recommended testing interval is once per year. • Do not operate the BT-350 monitor if it fails to pass the power on self-test procedure. 11.1 Self-test The monitor performs self-test each time it turns on.
12.1 Electromagnetic emissions The BT-350 is intended for use in the electromagnetic environment specified below. The customer or the user of the BT-350 should assure that it is used in such an environment. Emissions test Compliance Electromagnetic environment - guidance The BT-350 uses RF energy only for its internal function.
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If the measured field strength in the location in which the BT-350 is used exceeds the applicable RF compliance level above, the BT-350 should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re- orienting or relocating the BT-350.
Sales Agency Manufacture Bistos Co., Ltd. ※ Thank you for purchasing BT-350. ※ This product is manufactured and passed through strict quality control and inspection. ※ Compensation standard concerning the repair, replacement, refund of the product complies with “Framework Act on Consumers” noticed by Fair Trade Commission of the Republic of Korea.
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