Dropping funnel and using method

Abstract

The embodiment of the invention discloses a dropping funnel and a using method. The dropping funnel comprises a dropping funnel body, a puncturing unit and an exhausting and liquid stopping unit, wherein the dropping funnel body is of a columnar cavity structure; the puncturing unit is arranged at the top of the dropping funnel body, is used for puncturing a liquid medicine container and comprises a liquid inlet channel and an air inlet channel, the liquid inlet channel communicates with the interior of the liquid medicine container and the interior of the dropping funnel body, and the air inlet channel is connected with the atmospheric environment and the interior of the liquid medicine container; the exhausting and liquid stopping unit comprises an exhausting channel and a liquid stopping channel; the exhausting channel is arranged on the side wall of the top of the dropping funnel body, communicates with the atmospheric environment and the interior of the dropping funnel body and is used for exhausting air in the dropping funnel body; and the liquid stopping channel is arranged in the dropping funnel body and communicates with the exhausting channel, and the bottom end of the liquid stopping channel is used for limiting the height of the liquid level in the dropping funnel body. According to the technical scheme, the puncturing unit and the exhausting and liquid stopping unit are arranged on the dropping funnel of an infusion apparatus, so that automatic exhausting and automatic liquid stopping of the infusion apparatus are realized.

Description

technical field [0001] Embodiments of the present invention relate to the field of medical appliances, and in particular to a drip funnel and a method of use. Background technique [0002] At present, in the medical field, disposable infusion sets are commonly used for clinical intravenous infusion. This type of infusion set has the following problems during use: after the infusion is completed, there is no automatic liquid stop, automatic exhaust, and automatic control of the liquid level. It is necessary for medical staff to replace the infusion bottle or pull out the infusion needle in time, otherwise the air will enter the patient's body and cause air embolism, or other unsafe factors such as blood return, which will directly increase the work intensity and heavy mental burden of the medical staff. When facing emergency infusion and rescuing critically ill patients, it will cause serious consequences, so it needs to be improved. Contents of the invention [0003] For ...

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Problems solved by technology

[0003] For this reason, the embodiment of the present invention provides a dripping funnel and its use method to solve the problems in the prior art that the liquid level in the dripping funnel of the infusion set is difficult to control and the liquid cannot be automatically stopped after the liquid medicine is infused.

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