Automatic exhaust device and infusion apparatus used thereby

Abstract

The invention provides an automatic exhaust device and an infusion apparatus used thereby. The automatic exhaust device is used in a drip chamber of the infusion apparatus, and comprises an exhaust valve base and an exhaust valve protective cap, wherein the exhaust valve base is fixedly mounted in the drip chamber and is connected with an inner wall of the drip chamber in a sealed manner; an exhaust post capable of conducting an upper space of the exhaust valve base and an outlet of the drip chamber is arranged on the exhaust valve base; a first exhaust slot is formed in a side wall of the exhaust post; the exhaust valve protective cap covers the outer part of the exhaust post of the exhaust valve base, an exhaust gap is reserved between an inner wall of the exhaust valve protective cap and an outer wall of the exhaust post; a second exhaust slot is formed in a side wall of the exhaust valve protective cap; the first exhaust slot and the second exhaust slot are staggered in the radial direction of the exhaust post. Compared with the prior art, the automatic exhaust device disclosed by the invention is ingenious in structure, easy to operate and short in exhaust time, the drip chamber does not need to be inverted or extruded, operations of automatically exhausting and repeatedly maintaining a fixed liquid level can be realized, the labor intensity of medical care personnel is reduced, and the stability and safety are improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an automatic exhaust device for an infusion set and an infusion set using the automatic exhaust device. Background technique [0002] The transfusion set of clinical use mainly contains bottle stopper puncturer, air filter, dropping funnel, flexible pipe, flow regulator, liquid medicine filter and intravenous infusion needle to form now. Before infusion to the patient, the medical staff must completely discharge the air bubbles in the infusion set. The usual method is to insert the cork piercer into the infusion bottle, invert the dripping funnel, fill the dripping funnel halfway with the liquid, put the dripping funnel in the right direction, or close the flow regulator, squeeze the dripping funnel, and wait for the liquid to enter. After about half of the dripping funnel, slowly open the flow regulator, wait until the air in the hose at the lower part of the drippi...

AI Technical Summary

Problems solved by technology

[0007] In the above three design schemes, in the actual use process, the liquid medicine will directly drip into the exhaust pipe, forming a gas-liquid mixture into the hose, resulting in exhaust failure, or when the infusion process is interrupted or the dressing is changed, if the dripping Empty the medicinal liquid in the bucket and continue to use it. The liquid level in the dripping bucket will be too low or not maintained at all. At this time, liquid mixed with air bubbles will enter the hose at the lower part of the dripping bucket, so medical attention is still needed. Re-exhaust the personnel, which increases the work intensity of the medical staff and wastes treatment time

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