Method and device for zero point calibration of pressure sensor of anesthesia machine
A pressure sensor and zero-point calibration technology, applied in the field of medical devices, can solve the problems of complex operation process, error-prone, unfavorable hospital maintenance, etc., and achieve the effect of simple operation process and difficulty in zero-point calibration error.
Active Publication Date: 2016-04-20
BEIJING AEONMED
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Problems solved by technology
For automatic zero point calibration, the default sensor has a specific pressure change curve, but it does not pay attention to whether the pressure sensor is really at the zero point pressure when the power is turned on. If the anesthesia machine is not at the zero point pressure after power on, it will cause calibration. mistake
For the special zero point calibration operation, the operation process is complicated, and an additional standard pressure gauge is required to determine the pressure change curve. Such an operation is not conducive to the maintenance of the hospital, requires professional personnel to operate, and is prone to errors
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[0032] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0033] figure 1 It is a flow chart of the zero point calibration method of the pressure sensor of the anesthesia machine according to the first embodiment of the present invention. like figure 1 As shown, the method includes:
[0034] Step 110, performing zero calibration on the airway pressure sensor of the anesthesia machine;
[0035] Step 120, restart, and perform power-on self-test;
[0036] Step 130 , judging whether the air pressure change values of the airway pressure sensor and the ambient pressure sensor are the same, and if so, perform zero point calibration on the ambient pressure sensor according to the zero point of the airway pressure sensor.
[0037] For all pressure sensors, the pressure change characteristic curve is fixed, but the zero point value will have a certain error, a...
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The invention discloses a method and device for zero-point calibration of an anesthesia machine pressure sensor. The method includes: zero-point calibration of the airway pressure sensor of the anesthesia machine; Whether the air pressure change values are the same, if they are the same, perform zero point calibration on the ambient pressure sensor according to the zero point of the airway pressure sensor. The present invention can realize the zero-point calibration of the pressure sensor of the anesthesia machine through simple and convenient operation, and avoid operation errors to the greatest extent.
Description
technical field [0001] The invention relates to the field of medical devices, in particular to a zero point calibration method and device for a pressure sensor of an anesthesia machine. Background technique [0002] In an anesthesia machine, pressure parameters are key parameters, which include airway pressure parameters, ambient pressure parameters and gas source pressure parameters. These pressure parameters are all detected by pressure sensors. Usually, special airway pressure sensors and ambient pressure sensors are set in the anesthesia machine to monitor the airway pressure parameters and ambient pressure parameters respectively. [0003] Calibrating the zero point of the pressure sensor is an important operation to maintain the normal use of the anesthesia machine and ensure safety. At present, there are mainly two methods of zero point calibration of pressure sensors. One is to automatically perform zero point calibration after power-on, which is used to automatical...
Claims
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IPC IPC(8): A61M16/01
CPCA61M2205/3358G01L27/002A61B2560/0223A61M2016/0033A61M16/01A61M2016/0027A61M2205/70A61M16/021A61M16/0051A61M16/0003A61M2016/0036A61M2205/3303A61M2205/3344A61M2230/40
Inventor 张耀东
Owner BEIJING AEONMED