Bistos BT-720, Руководство по эксплуатации

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BT-720 Operation manual
P/N:720-ENG-OPM-ENG-R03 Bistos Co., Ltd. 2020.10
19
349
）
, Adult/ Pediatric /Neonate default: 50/75/100

Select “PR High Limit”, and enter value
（
Adult Range: 16-300, Pediatric/Neonate Range: 16-
350
）
, Adult/ Pediatric /Neonate default: 120/160/200.

Alarm ,Select “Default”, the alarm parameter is set to the default value

Select “PI Low Limit”, and enter value
（
Range: 0.00-19.90
）
. Default: 0.00.

Select “PI High Limit”, and enter value
（
Range: 0.10-20.00
）
. Default: 20.00.
5.5 Measuring influencing factors
During operation, the following factors can affect the accuracy of SpO
2
measurement:

High-frequency radio wave interference, such as interference generated by the host system or
interference from electrosurgery instrument connected to the system.

Intravenous dye.

Too frequent movement of the patient.

External light radiation.

Sensor is improperly installed or improperly in contact with the patient.

Sensor temperature.

The sensor is placed on limbs with blood pressure cuff, arterial duct or lumen tube.

Concentration of non-functional hemoglobin such as carboxyhemoglobin (COHb) and
methemoglobin (MetHb).

Shock, anemia, hypothermia, and the application of vasoconstrictor drugs may reduce the
arterial blood flow to a level that cannot be measured.

The measurement also depends on the absorption of specific wavelengths of light by
oxyhemoglobin and reduced hemoglobin. If there is any other substance that absorbs the same
wavelength, the measurement may have false or low SpO
2
values, such as: carbon hemoglobin,
methemoglobin, methylene blue, and indigo carmine.

SpO
2
probe described in Annex is recommended.

Operating environment limit: Operating temperature range: 5
～
40
℃
, Humidity range: 30%~85%
(non-condensing) Atmospheric pressure: 700hPa
～
1060hPa.
5.6 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.

Functional testers cannot be used to evaluate the accuracy of pulse oximetry probe and pulse
oximetry.

Measure the maximum temperature between the oxygen probe and the tissue contact
surface
：
Measured as described in Annex BB of ISO 80601-2-61,the temperature is less than 41 °
C.
6 NIBP (Option)
6.1 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. Then,
the pulsation of the arterial vascular wall will generate a shock wave in the cuff. SBP, MAP, and DBP
are obtained by measuring and analyzing cuff pressure oscillations when deflating.