Electromagnetic valve leak detection system for blood purification

A technology of leak detection and blood purification, applied in the direction of detecting the appearance of fluid at the leak point, using liquid/vacuum degree to measure the liquid tightness, measuring devices, etc., can solve the problems of micro-leakage and occasional leaks that cannot be detected, safety hazards, and inability Detect problems such as valve body leakage, achieve the effect of simple structure, high reliability and convenient installation
CN101718608AActive Publication Date: 2010-06-02SWS HEMODIALYSIS CARE CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SWS HEMODIALYSIS CARE CO LTD
Publication Date
2010-06-02

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Abstract

The invention discloses an electromagnetic valve leak detection system for blood purification, comprising a liquid circuit and a detection circuit, wherein the liquid circuit is provided an electromagnetic valve and a liquid circuit pipeline. The system is characterized in that the detection circuit is provided with a signal generation circuit, a signal acquisition circuit, a signal processing circuit, a first detection electrode and a second detection electrode. The system has the beneficial effects of high reliability, simple structure and convenient installation, can perform real-time online detection on the electromagnetic valve in blood purification equipment in the whole operation process, achieves discrimination in that whether leakage is generated or not by continuously detecting the liquid flowing condition of an inlet end and an outlet end of the electromagnetic valve, and accurately identifies whether connection and disconnection of the electromagnetic is reliable or not. Therefore, the system can completely avoid safety risk caused by electromagnetic valve leakage, and has obvious advantage of no leakage alarm.
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Description

technical field

[0001] The invention belongs to a blood purification detection device, in particular to a leakage detection system of an electromagnetic valve for blood purification in a blood purification liquid circuit. Background technique

[0002] In the blood purification equipment, the patient's blood flows out of the body and is purified by the blood purification system and returns to the body. The blood purification equipment includes three parts: blood circuit, fluid circuit and monitoring system. The blood system is to lead the blood of the patient out of the body, enter the blood purification equipment, and then flow back to the patient; the fluid system is to achieve the purpose of treatment through the solution diffusion and ultrafiltration between the blood and the dialysate; the monitoring system is to purify the blood through Each parameter of the equipment is monitored.

[0003] In order to maintain acid-base balance, curative effect and safety, dialysate p...

Claims

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