Disposable exhaust-free liquid replenishing transfusion device

Abstract

The invention discloses a disposable exhaust-free liquid replenishing transfusion device. In the transfusion device, aiming at the phenomenon of liquid retention on the lower section of a transfusion tube after a dropping funnel in the conventional transfusion device is empty, the bottom of the dropping funnel extends downwards, and the dropping funnel becomes a lengthened dropping funnel, so that a small amount of liquid is retained in a cavity of the lengthened dropping funnel after the previous liquid bottle is empty. The disposable exhaust-free liquid replenishing transfusion device is characterized in that: 1, after the previous liquid bottle is empty, the liquid is replenished directly, the lengthened dropping funnel is pinched, and a liquid surface in the cavity of the lengthened dropping funnel rises to maintain the pressure of a liquid column, so that the trouble, waste, interface contamination and possible incidents of blood exposure of patients which are caused because a liquid outlet interface is repeatedly opened to discharge liquid and air for replenishing liquid can be avoided, and a small amount of air also can be prevented from entering human bodies through a pintle of a transfusion needle due to the reconnection of the transfusion needle so as to avoid the frequent perambulation of nurses and professional infection caused by the contamination of haemorrhage dropping liquid on the interface on hands of the nurses; 2, a bottle cavity of valuable liquid can be washed, so that the valuable liquid can be dropped into the human bodies; and 3, the residual liquid can be prevented from generating in a transfusion bag. The disposable exhaust-free liquid replenishing transfusion device is used for continuous transfusion treatment in clinic.

Description

technical field [0001] The present invention relates to a medical disposable infusion device, in particular to a device that discharges stagnant liquid in the lower cavity of the infusion tube and air in the upper cavity without opening the liquid outlet port downwards and outwards after the previous infusion bottle is emptied. An infusion set capable of refilling (note: since there is no problem of air entering the lumen of the infusion tube after the infusion bottle is emptied, it is hereinafter referred to as a "disposable air-free refilling infusion set"). Background technique [0002] For a long time, in the preparation of clinical infusion and blood transfusion (referring to filling the infusion set and blood transfusion set for transfusion), one of the problems that has troubled nurses is: even if the nurse can operate carefully, it is still impossible to completely avoid the setting in the Murphy’s Dropper [annotation: the present invention will (contain the Mufei's ...

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Problems solved by technology

[0014] The purpose of the present invention is to solve the problem that air will enter the upper cavity of the infusion tube after the dropper of the existing infusion set is empty, which will cause inconvenience in continuing the liquid. The design principle of the present invention is to use the empty dropper of the existing infusion set Afterwards, the stagnation phenomenon in the lower cavity of the infusion tube is designed to provide a method that does not need to open the liquid outlet to discharge the stagnant liquid in the lower cavity of the infusion tube and the air in the upper cavity (referring to after the drip funnel is empty). An infusion set that can refill the liquid without entering the air in the infusion tube lumen

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