Pipe pressurecollection device and method

Abstract

The invention provides a pipe pressure collection device and method. The pipe pressure collection device comprises a base, a pressure sensor and a pipe connector, an air pressure cavity is formed in the base, the pressure sensor and the pipe connector are fixedly installed on the base separately, the pipe connector is communicated with the air pressure cavity, and the pressure sensor senses and collects pressure signals in the air pressure cavity. Preferably, the pipe pressure collection device further comprises an elastic sleeve and a protection sleeve, the protection sleeve is provided with a pipe connector, the elastic sleeve is connected with the base and the protection sleeve separately, and the pipe connector is located in an inner cavity of the protection sleeve; the protection sleeve moves relative to the pipe connector and resets under the action of elastic force of the elastic sleeve. The pipe pressure collection device and a pipe to be detected are connected in a sealed mode to form a sealed pipe system, a collection operation on the pressure signals in the pipe to be detected can be conveniently completed by means of the pressure sensor, operation is easy and safe, and the pipe pressure collection device is particularly suitable for being used with consumables for blood component separation or collection in a matched mode.

Description

technical field [0001] The invention relates to the technical field of pipeline pressure monitoring, in particular to a pipeline pressure collection device and collection method applied to pipelines with air filter plugs. Background technique [0002] Clinical blood is widely used in the field of modern medicine. The collection and separation of blood have strict applicable requirements for blood component separation or collection consumables. For example, in the process of blood collection, after the blood flows out from the venous vessel, it enters the blood collection line and mixes with the blood anticoagulant in the blood collection line; The road continuously draws blood from the veins. In order to collect more blood smoothly, it is necessary to detect the air pressure in the blood collection pipeline during the continuous operation of the peristaltic pump; and the peristaltic pump will adjust the speed according to the detected pressure to prevent the blood from Dis...

AI Technical Summary

Problems solved by technology

For this kind of pipeline system with air filter plug, when detecting the positive or negative pressure in the pipeline during its working process, it is first necessary to detect whether the air filter plug in the pipeline system is installed, and then the pipeline can be checked. Otherwise, the accuracy and reliability of the pressure measurement value in the pipeline cannot be guaranteed, thus affecting the safety and reliability of blood component separation or collection

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