Peristaltic analgesic pump and its flow rate detection and fault diagnosis method

Abstract

The invention relates to a medical medium injection flow rate control device and a fault diagnosis method, in particular to a peristaltic analgesia pump and a flow rate detection and fault diagnosis method of the peristaltic analgesia pump. A first touch force sensor is arranged at the position of any one point A of a transfusion pipeline, a second touch force sensor is installed at the position of any one point B of the transfusion pipeline, the first touch force sensor and the second touch force sensor are connected with a flow detection device through signal lines, the flow detection device feeds back data to the peristaltic analgesia pump through a signal line, and a flow rate detection device is constituted. The first touch force sensor and the second touch force sensor are connected with an A / D converter through signal lines, the A / D converter converts the data into an impulse sequence and inputs the impulse sequence into a data processor, and the data processor feeds back data to the peristaltic analgesia pump. The peristaltic analgesia pump can feed medicine, a transfusion medicine feeding flow rate control and fault diagnosis method is provided through detection of pressure generated by fluid on the pipe wall and the frequency of the fluid in the transfusion pipeline, and therefore the purpose that the peristaltic analgesia pump conducts accurate and reliable operation according to a set controllable mode can be achieved.

Description

[technical field] [0001] The invention relates to a medical medium input flow control device and a fault diagnosis method, in particular to a peristaltic analgesic pump and a flow velocity detection and fault diagnosis method thereof. [Background technique] [0002] At present, clinical analgesic pumps basically use peristaltic pumps. The pump head continuously squeezes and releases the elastic infusion line of the pump to achieve continuous pumping of the drug solution, but it is difficult to detect the infusion flow rate and monitor the infusion process. . Most of the detection of the infusion flow rate is based on infrared drop counting; the monitoring of the infusion process is only limited to the detection of blockage or air bubbles, but rarely involves the aging monitoring of the infusion pipeline, especially the peristaltic extrusion infusion pipeline, and the infusion tube Road shedding monitoring. For the detection of the flow rate of the infusion pipeline, since ...

AI Technical Summary

Problems solved by technology

[0002] At present, clinical analgesic pumps basically use peristaltic pumps. The pump head continuously squeezes and releases the elastic infusion line of the pump to achieve continuous pumping of the drug solution, but it is difficult to detect the infusion flow rate and monitor the infusion process.

Most of the detection of the infusion flow rate is based on infrared drop counting; the monitoring of the infusion process is only limited to the detection of blockage or air bubbles, but rarely involves the aging monitoring of the infusion pipeline, especially the peristaltic extrusion infusion pipeline, and the infusion tube road shedding monitoring

For the detection of the flow rate of the infusion pipeline, since the peristaltic analgesic pump belongs to micro-dosing, the dosage range is generally within 1000ml / h, and the inner diameter of the infusion pipeline is generally <5mm, so the non-contact measurement technology commonly used in the industry, such as Ultrasonic flow detection and electromagnetic flow detection are difficult to detect the infusion drug flow of peristaltic analgesic pumps. At present, most of the market uses infrared drip counting, but it is difficult to achieve accurate counting due to external interference.

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