Ventilator Tester Calibration Set

Abstract

The invention relates to a calibration device of a breathing machine tester. The calibration device comprises an oxygen concentration mixing detection module, a static detection module and a dynamic detection module. The oxygen concentration mixing detection module generates mixed gas with the oxygen concentration ranging from 21 percent to 100 percent, and the inspiration oxygen concentration of the calibrated breathing machine tester is calibrated and traced back. The static detection module is used for carrying out calibration and tracing on static flow and static pressure parameters of the breathing machine tester. The dynamic detection module is used for carrying out calibration and tracing on dynamic flow and dynamic pressure parameters of the breathing machine tester. The dynamic flow and dynamic pressure parameters of the breathing machine tester are calibrated and traced back with the same module, the capacity control mode is adopted, and it can be guaranteed that all parameters are stable and controllable when the calibration device is used as a standard signal generator.

Description

technical field [0001] The invention relates to a calibration (traceability) device for a medical testing instrument, in particular to a calibration device for a ventilator testing instrument. Background technique [0002] The ventilator is an important medical device in the field of modern clinical medicine. As a medical device with multi-parameter output, its measurement characteristics are directly related to the clinical application effect. The ventilator tester is a device for testing the working parameters and accuracy of the ventilator. It is used for the measurement and calibration of the ventilator. It can be understood as a collection of sensors. [0003] The measurement and traceability of the ventilator is particularly important to ensure the safety and effectiveness of the clinical application of the ventilator. The measurement and traceability of the ventilator includes: the measurement and calibration of the ventilator and the measurement and calibration of th...

AI Technical Summary

Problems solved by technology

At present, the problem of ventilator measurement and calibration has been solved, and the measurement and calibration of ventilator tester is due to the serious gas leakage during tidal volume detection in the existing ventilator tester calibration device, and the error of the mixed result of oxygen concentration exceeds 30%. Many deficiencies such as peak airway pressure, positive end-expiratory pressure, and inspiratory-expiratory ratio series parameters cannot be detected, making it impossible to effectively unify the measurement and calibration of various ventilator testers, as a bridge for traceability of values, so that various A value chain that meets the requirements of the measurement standard is formed between the ventilator tester and the national measurement standard, which leads to the inability to effectively realize the traceability of the measurement value of the relevant working parameters of the ventilator

Images