Infusion tube liquid flow rate detection system and detection method thereof

Abstract

The invention discloses an infusion tube liquid flow rate detection system and a detection method thereof. The system comprises an infusion tube, wherein a wave transmitter and a wave frequency detector are respectively arranged on two sides of the infusion tube; the wave frequency detector is used for receiving and calculating the frequency of the wave transmitter; both the wave transmitter and the wave frequency detector are connected with a controller; the controller is connected with a frequency comparison operator used for comparing and calculating the transmitted wave frequency of the wave transmitter and the received wave frequency of the wave frequency detector and an infusion tube valve used for turning off the infusion tube; the frequency comparison operator judges whether liquid exists in the infusion tube and whether the liquid flows and calculates the liquid flow rate by comparing the transmitted wave frequency with the received wave frequency; the controller judges whether the liquid flow rate in the infusion rate is regulated by controlling an infusion tube valve according to the detection result of the frequency comparison operator.

Description

[0001] [technical field] [0002] The invention relates to a liquid flow velocity detection system and a detection method of a transfusion tube. [0003] [Background technique] [0004] The vast majority of existing infusion treatments are performed through infusion tubes, which require manual monitoring by nurses or family members during the infusion, which consumes a lot of manpower, and is prone to dripping empty during the infusion under manual supervision, or the needle is blocked during the infusion process , may cause certain danger to the patient. On the other hand, some devices that detect the drip rate usually estimate the rate by checking the drip rate of the liquid in the Murphys tube, actively control the drip rate through a peristaltic pump, and even calculate the weight by weighing However, the method for detecting the liquid velocity in the infusion tube has the disadvantages of bulky equipment, high power consumption, and inaccuracy. [0005] [Content of the i...

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Problems solved by technology

[0004] The vast majority of existing infusion treatments are performed through infusion tubes, which require manual monitoring by nurses or family members during the infusion, which consumes a lot of manpower, and is prone to dripping empty during the infusion under manual supervision, or the needle is blocked during the infusion process , may cause certain danger to the patient. On the other hand, some devices that detect the drip rate usually estimate the rate by checking the drip rate of the liquid in the Murphys tube, actively control the drip rate through a peristaltic pump, and even calculate the weight by weighing However, the above-mentioned method of detecting the liquid velocity in the infusion tube has the disadvantages of bulky equipment, high power consumption, and inaccuracy.

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