Air exhausting device for infusion set

Abstract

The invention discloses an air exhausting device for an infusion set. The air exhausting device comprises a dripping bucket and an automatic vent valve, wherein the automatic vent valve is mounted at the inner bottom of the dripping bucket; no clearance is formed between the contact surfaces of the automatic vent valve and the bottom surface of the dripping bucket; the automatic vent valve comprises a base and a plurality of air exhausting and liquid guiding pipes; the air exhausting and liquid guiding pipes are distributed on the base of the automatic vent valve; the air exhausting and liquid guiding pipes and a liquid outlet in the upper end of the dripping bucket are on different axes; one or two or three air exhausting and liquid guiding grooves are formed in each air exhausting and liquid guiding pipe; the base is provided with a hollow part; the lower part of the base is communicated with a liquid outlet in the bottom of the dripping bucket; a high table is arranged in the central position at the upper part of the hollow part of the base. The air exhausting device has the advantage that air, capable of entering a human body, in the dripping bucket can be exhausted to the utmost extent, so that the safety of infusion is improved.

Description

technical field [0001] The invention belongs to the field of disposable medical devices, in particular to an exhaust device for an infusion set in an infusion set. Background technique [0002] The clinically used infusion set is generally mainly composed of a bottle stopper piercer, a dripping funnel, a hose, a flow regulator, and a joint. When it rises to a certain height, put the dripping funnel in order to discharge the air in the dripping funnel. If the operation is not proper, the liquid in the dripping funnel will mix with the gas and enter the hose, which will form air bubbles, which will cause safety hazards. If the control is not proper, the liquid level in the dripping funnel will be too high or too low, which is not conducive to the number of infusion drops. According to the observation, the liquid level of the dropping funnel is too low, which may cause the mixture of liquid and gas to enter the hose, causing a safety hazard. [0003] The patent with the appli...

AI Technical Summary

Problems solved by technology

In this patent, due to the large space in the inner part of the base, it is easy to form air bubbles in the inner part of the base during the first exhaust, which may cause hidden dangers of entering the human body.

The principle is that the liquid flows out from the liquid inlet on the upper part of the dripping funnel of the infusion set, flows through the automatic exhaust valve, enters the inner part of the base through the exhaust, the exhaust on the catheter tube, and the liquid guiding groove, and finally flows to the outlet at the lower end of the dripping funnel. The liquid port enters the human body. Since the space inside the base is relatively large, when the liquid flows downward, the liquid flowing out from the exhaust and liquid guide grooves will flow to each method. , and then flow to the liquid outlet first, and part of the cavity inside the base is not filled, resulting in the accumulation of air bubbles

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