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Safety valve self-check method, system and anesthesia machine

A self-inspection system and safety valve technology, applied in respirator and other directions, can solve problems such as effective opening threshold error, inconvenient accuracy, safety hazards, etc., achieve high accuracy and reliability, improve safety, and be easy to implement Effect

Inactive Publication Date: 2011-12-07
BEIJING AEONMED
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AI Technical Summary

Problems solved by technology

[0005] 1. In actual use, due to unpredictable factors such as adhesion or oxidation of the safety valve working device, there will be a certain error in its effective opening threshold. Therefore, the anesthesia machine equipment will not test the opening threshold of the safety valve before each use. cause safety hazard
[0006] 2. If the method of external detection equipment is used for detection, manual operation is required, which is inconvenient and has low accuracy

Method used

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  • Safety valve self-check method, system and anesthesia machine
  • Safety valve self-check method, system and anesthesia machine
  • Safety valve self-check method, system and anesthesia machine

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Embodiment Construction

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] see figure 1 and Figure 4 To illustrate the safety valve self-inspection method, when the safety valve self-inspection program starts, the following steps are performed in sequence: Step S101, close the air outlet of the air circuit so that the air circuit forms a closed space with only a single air inlet, open the pressure sensor, To prepare for detection, open the intake valve, and continue to inhale air through the intake port, so that the internal pressure of the confined space continues to increase.

[0051] Step S102, detecting the air pressure inside the confined space and recording the air pressure value P0.

[0052] Step S103, re-detect the air pressure value Pt inside the confined space after t seconds have elapsed after detecting the air pressure value P0.

[0053] Step S104, judge. If Pt=P0, it indicates that t...

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Abstract

The present invention proposes a safety valve self-inspection method, system and anesthesia machine. The method includes the following steps of closing the gas outlet, opening the pressure sensor, and opening the intake valve; detecting the air pressure and recording the air pressure value P0; delaying for t seconds Finally, detect the air pressure value Pt; make a judgment, if Pt=P0, stop pressurizing, and record the final pressure value Pt. The invention enables the medical equipment of the respiratory system with the ventilation safety valve device to automatically detect the opening threshold of the safety valve before each use, is simple to operate and easy to implement, and simultaneously improves the safety of the medical equipment.

Description

technical field [0001] The invention relates to the field of medical equipment of a respiratory system with a ventilation safety valve device, in particular to a safety valve self-inspection method and a system using the method. Background technique [0002] When the medical equipment of the respiratory system with a ventilation safety valve device, such as an anesthesia machine, during operation, when the system has an irreparable operation failure, the patient will continue to be ventilated, which will cause the airway pressure to continue to increase. The patient suffers from permanent damage to the alveoli. Safety valves are the most effective way to prevent this damage from happening. The opening threshold of the safety valve will directly affect whether the safety valve can play an effective protective role. [0003] Few of the existing medical devices of this type detect the opening threshold of the safety valve, and even if detection is required, an external detect...

Claims

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Application Information

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IPC IPC(8): A61M16/20A61M16/01
Inventor 丛玉孟
Owner BEIJING AEONMED
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