Automatic exhausting and liquid stopping multiple-effect infusion set

Abstract

The invention relates to the technical field of medical equipment, in particular to an automatic exhausting and liquid stopping multiple-effect infusion set. The bottom of a dripping hopper is provided with an exhaust filter pipe sealed with a vertical filter membrane of which the bubble point pressure of 7.85-25.0kPa; the vertical filter membrane is gradually submersed when liquid is injected, so that a mode that the liquid is accumulated at the lower end and gas is exhausted at the upper end is realized; and by combining the special structure of the exhaust filter pipe, the multiple-effect aims of automatically exhausting, filtering a liquid medicine, eliminating bubbles and automatically stopping the liquid are skillfully fulfilled.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a multi-effect infusion set with automatic exhaust and liquid stop. Background technique [0002] Difficulty in exhausting the infusion set, the existence of air bubbles that easily enter the catheter, etc., have always been problems that have plagued the nursing industry. In response to this problem, many technical solutions have emerged in recent years to solve this problem, such as Chinese patent ZL03205459.9 anti-bubble infusion set , ZL200820204818.5 an improved exhaust pipe in the dripping funnel of the infusion set, and the Chinese patent application 200610146971.2 automatic exhaust and self-destructing infusion set, etc., although there are differences in subtleties, they all propose to use the built-in exhaust pipe at the bottom of the dripping funnel The technical scheme of realizing the first automatic exhaust of the infusion set by means of the trachea, its ke...

AI Technical Summary

Problems solved by technology

As we all know, since it is a micro-infusion, no matter how much the 5mm high liquid storage design of the technical solution is designed to be exhausted, there will always be a depletion time, and the error in the process will make it difficult to accurately control the depletion of the drainage line set. Do as much time as possible; in addition, patients with infusion are mostly free-moving individuals, and their body position is not constant. After the infusion, the patient's instinctive positional activities, such as the sudden downward movement of the limb that punctures the infusion point, will directly increase the catheter capacity. The absolute height of the inner liquid column indirectly increases the downward pulling pressure in the catheter that the filter capsule bears, and it is very likely that the filter capsule that was originally roughly balanced with the fluid column pressure of the catheter due to the emptying of the liquid drop suddenly loses balance, and the internal storage The liquid between the fibers of the filter capsule is quickly pulled into the catheter, and the liquid passing through the drainage line is difficult to replenish in time due to the design of slow rehydration, so that the filter capsule itself, which does not have the ability to stop liquid absolutely, fails instantly, and the liquid in the drip funnel Air is injected into the duct immediately, the second

In the actual infusion, negligent care is absolutely unavoidable. Under the condition that the nurses fully trust the self-stopping performance that they claim, once the air enters the catheter due to the above two reasons and negligent care, it is very easy to cause the patient fatal accident

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