Method for detecting liquid drops in drip cup of infusion apparatus

Abstract

The invention relates to a method for detecting liquid drops in a drip cup of an infusion apparatus, which can be used for eliminating false liquid drops signals on a photoelectric detection mechanism caused by external factors and correctly identifying liquid drops signals in the drip cup of the infusion apparatus. In the method, a plurality of light emitting tubes and light receiving tubes are arranged vertically to the drip cup, a group of time sequence signals with vertical liquid drop dripping characteristic is formed by continuously receiving light intensity change signals, and true and false liquid drops signals are distinguished by analyzing the time sequence of the group of signals.

Description

technical field [0001] The invention relates to a method for detecting liquid droplets in a drip pot of an infusion set, more specifically, a method for detecting liquid drops in a drip pot of an infusion set used in an infusion monitor for infusion to a patient, and belongs to the technical field of medical appliances. Background technique [0002] Existing titration infusion devices can monitor the infusion speed and volume by detecting the time interval, quantity and total amount of droplets passing through, and then control the infusion speed and total volume through the feedback mechanism, so as to achieve the purpose of medical or chemical analysis . The general drop detection method is to set one or more luminescent tubes on one side of the drip pot, and one or more receiving tubes on the other side. As the droplet passes through the light, it creates a change in light intensity at the receiving tube. The light intensity change is processed and defined as a droplet ...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of false signals caused by non-droplet factors such as light changes and liquid surface sh

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