Fatigue detecting device for infusion tube

Abstract

The invention discloses a fatigue detecting device for an infusion tube. The fatigue detecting device comprises a left extrusion peristaltic shell, a right extrusion peristaltic shell, a baffle, an infusion pump tablet set and cam sets; the infusion pump tablet set is constituted by a plurality of infusion pump tablets which are arrayed in sequence, and each cam set is composed of a plurality of corresponding cam pieces; the left extrusion peristaltic shell and the right extrusion peristaltic shell are each provided with a plurality of embedding grooves used for embedding the infusion pump tablets, and a cam movable groove communicating with the embedding grooves; each infusion pump tablet is embedded in the corresponding embedding groove formed by the left extrusion peristaltic shell andthe right extrusion peristaltic shell, the cam sets are embedded in the cam movable grooves, each cam piece of the cam sets makes contact with the corresponding infusion pump tablet, and an infusion pipeline is arranged between the infusion pump tablet set and the baffle and makes contact with the cam sets; and the left extrusion peristaltic shell is correspondingly provided with a photoelectric detecting device.

Description

technical field [0001] The invention relates to the medical field, in particular to a device for detecting the fatigue degree of an infusion tube. Background technique [0002] In the existing infusion pump application, there are two mainstream and common solutions for the fatigue detection of the infusion pipeline: 1. There is no special detection of the fatigue degree of the infusion pipeline; but the infusion pipeline of different brands will be tested. Test to obtain the relationship between the number of pipeline extrusions and the degree of fatigue, and then store these test data. According to the stored test data, when the number of times the infusion line is squeezed, the flow rate will be compensated. When the number of squeezes reaches a certain upper limit, the medical staff will be prompted to move the infusion line. 2. Directly detect the fatigue degree of the infusion pipeline; most of the current infusion pumps use a baffle to fix the infusion tube, so that ...

AI Technical Summary

Problems solved by technology

This structure makes the space near the infusion pipeline narrow and inconvenient to directly measure its fatigue degree, which will increase the complexity and cost of the design and affect the reliability of the infusion

For example, using a photoelectric detection device to directly measure the infusion pipeline, first of all, the installation is relatively complicated, and the infusion pipeline and the liquid in the pipeline have different light transmittances. Based on the influence of light transmittance, the feedback of this detection scheme The electrical signal does not correctly reflect the fatigue of the pipeline

[0003] One of these solutions is to use empirical values ​​to judge pipeline fatigue and compensate for flow velocity, but there are always differences in different pipelines, and the actual value will always deviate from the empirical value, which leads to the flow velocity in practical applications. Not allowed; Another direct fatigue detection method for infusion pipelines is also limited by the structural space, which is inconvenient for assembly and production, and the detection accuracy of the photoelectric detection principle is not good.

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