Disposable infusion apparatus capable of stopping liquid and exhausting air automatically

Abstract

The invention belongs to the field of medical instruments, in particular to a disposable infusion apparatus capable of stopping liquid and exhausting air automatically. The infusion apparatus comprises a dropping funnel, wherein the dropping funnel comprises an upper cover, a dropping funnel body and a base. The infusion apparatus is characterized in that a liquid stopping filtering membrane is arranged in the base; the outer edge of the liquid stopping filtering membrane is welded with the inner wall of the base; the base is hard; an air exhaust hole communicating an inner cavity of the dropping funnel with the external atmosphere is formed in the base wall; and an air exhaust piece is arranged at an dropping funnel inner cavity end of the air exhaust hole. The disposable infusion apparatus capable of stopping liquid and exhausting air automatically is simple and reasonable in structure; the base and the liquid stopping filtering membrane together form an automatic liquid stopping structure, and after infusion, automatic liquid stopping is realized; the air exhaust hole and the air exhaust piece on the base together form an automatic air exhaust structure; air can be exhausted automatically in an infusion process, and bubbles are prevented from being brought to an infusion catheter; the use is safe and convenient; and treatment for a clinical patient is facilitated.

Description

technical field [0001] The invention relates to a disposable infusion device with automatic liquid stop and automatic exhaust, which belongs to the field of medical appliances. Background technique [0002] At present, when hospitals perform intravenous infusion or blood transfusion to clinical patients, disposable infusion sets are generally used, which plays a beneficial role in preventing cross-infection between patients. However, the use of this disposable infusion set also has disadvantages, that is, the current disposable infusion set has no automatic shut-off function after the infusion of the medicinal liquid, so the liquid medicine bottle (bag) must be changed in time or the infusion needle must be pulled out. Otherwise, the air will enter the infusion catheter, which will bring unsafe factors to the patient and is not conducive to the treatment of clinical patients; in addition, when the medicinal liquid in the infusion set begins to enter the dripping funnel, it i...

AI Technical Summary

Problems solved by technology

However, the use of this disposable infusion set also has disadvantages, that is, the current disposable infusion set has no automatic shut-off function after the infusion of the medicinal liquid, so the liquid medicine bottle (bag) must be changed in time or the infusion needle must be pulled out. Otherwise, the air will enter the infusion catheter, which will bring unsafe factors to the patient and is not conducive to the treatment of clinical patients; in addition, when the medicinal liquid in the infusion set begins to enter the dripping funnel, it is very easy to form a mixture of gas and liquid. It will quickly enter the infusion pipeline below the drip funnel, forming air bubbles during infusion, which poses a threat to the patient's health. Therefore, when infusion is performed, the medical staff must completely discharge the air bubbles in the infusion catheter before infusion

The usual method is to invert or squeeze the dripping funnel after the cork piercer is inserted into the infusion bottle stopper, so that the medicinal liquid enters the dripping funnel. Return to the normal use state, even so, the tube wall often absorbs air bubbles, and the medical staff need to pinch the air bubbles with their fingers. This kind of operation method is cumbersome and brings great inconvenience to the medical staff

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