Disposable liquor-stopping and flow-slowing infusion device

Abstract

The invention discloses a disposable liquor-stopping and flow-slowing infusion device which comprises an upper drop hopper, a lower drop hopper, and an infusion catheter connected with the lower drop hopper, wherein the lower drop hopper is internally provided with a liquor-stopping device; a liquor-stopping membrane of the liquor-stopping device is glued with an inner wall of the bottom when the liquor-stopping membrane works; the inner wall of the bottom is provided with at least one groove which comprises an upper port and a lower port; the cross section of the upper port is larger than that of the lower port; and liquor in the lower drop hopper enters the infusion catheter after flowing though the upper port and the lower port when the liquor-stopping membrane is glued with the inner wall of the bottom. According to the disposable liquor-stopping and flow-slowing infusion device, since the groove is formed in the inner wall of the bottom of the lower drop hopper, when the liquor-stopping membrane of the liquor-stopping device is glued with the inner wall of the bottom, the residual liquor in the lower drop hopper can enter from the upper port of the groove, and slowly flow into the infusion catheter from the lower port of the groove; air enters for supplement when the liquor is dripped off; the liquor in the catheter continues to enter a human body slowly; the dropping-off time of the liquor is prolonged; and the blood return is avoided.

Description

technical field [0001] The invention relates to a medical device, in particular to a one-time-use liquid-stopping slow-flow infusion set. Background technique [0002] At present, clinically, in the drip transfusion process for medical treatment of patients, drip infusion sets with flow controllers and liquid stop control devices are widely used. [0003] The invention with the application number of 201010573350.9 discloses a liquid stop control device for an infusion set. It at least includes a liquid-stopping part that can float in the dropping funnel; an anti-blocking structure is set between the liquid-stopping part and the liquid inlet part. The present invention adopts the above-mentioned structure, and by setting an anti-clogging structure between the liquid-stopping part and the liquid-inlet part, it effectively avoids the situation that the liquid-stopping part blocks the liquid-inlet part, resulting in the situation that the infusion cannot go down, and reduces th...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a one-time-use liquid-stopping slow-flow infusion set in order to overcome the defect that the liquid medicine is easily left in the infusion set in the prior art and cause waste.

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