Gas sampling pipe connection state detection method and gas detection device

Abstract

The invention relates to a gas sampling pipe connection state detection method and a gas detection device. The method comprises the steps of measuring a detection pressure difference deltaP in a gas chamber before and after a gas pump is started, and comparing the detection pressure difference deltaP with a pressure difference threshold Pt, if deltaP is less than Pt, determining that the gas sampling pipe is in an unconnected state, and determining that the gas sampling pipe is in a connected state when deltaP is greater than or equal to Pt. And whole-process loophole-free detection is realized by combining respiratory rate parameters. The connection state of the gas sampling pipe is simply and conveniently judged by detecting the negative pressure state of the gas chamber, the detection process is simple and rapid, the unconnected state of the gas sampling pipe can be detected in time, alarm information is sent out, the manual inspection process is omitted, manpower is saved, the detection efficiency is improved, and a guarantee is provided for the accuracy of gas detection data. Zero calibration operation is automatically carried out when the gas sampling pipe is not connected, and the accuracy of detection data is ensured. The connection state of the gas sampling pipe is detected without loopholes in the whole process of gas detection in combination with respiratory rate parameters, and misinformation of suffocation alarm is avoided.

Description

technical field [0001] The invention relates to data collection and its processing method, in particular to medical data collection and its processing method. Background technique [0002] The prior art side-flow gas detection device is applied to carbon dioxide CO 2 , Anesthetic gas and other gas detection, including gas chamber, gas pump and sampling tube that can connect to the gas chamber. Sampling tubes are consumables and need to be replaced frequently. If the sampling tube is not connected or falls off during use, it may cause wrong detection results when using the device. Most of the existing technologies check the connection status of the sampling tube manually, or manually guard the gas detection device to ensure that the sampling tube is connected in good condition, which adds extra burden and workload to the medical staff. In addition, during the gas detection process, due to changes in the environment, such as temperature, humidity, atmospheric pressure, etc....

AI Technical Summary

Problems solved by technology

Most of the existing technologies check the connection status of the sampling tube manually, or manually guard the gas detection device to ensure that the sampling tube is connected in good condition, which adds extra burden and workload to the medical staff

In addition, during the gas detection process, due to changes in the environment, such as temperature, humidity, atmospheric pressure, etc., will affect the accuracy and accuracy of the measurement, so regular zero calibration is required

The commonly used zero calibration method in the prior art needs to manually remove the sampling tube for zero calibration, and sometimes requires a special device for zero calibration, and the operation is more complicated

Reinstalling the sampling tube after completing the zero calibration is likely to cause operational errors, affect the connection status of the sampling tube and increase the workload of the operator, and the ease of use is not good

Inadequate installation of the sampling tube not only affects the detection accuracy, but also makes the user feel very inconvenient to use the device and affects the user experience

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