Stopping alarming device used during liquid medicine and blood transfusion

Abstract

The invention relates to a transfusion device, in particular to a stopping alarming device which is used during liquid medicine and blood transfusion and can perform sensing and exhaust air timely, and belongs to the technical field of medical instruments. The alarming device comprises a transfusion soft tube, a drip tube and a puncture needle, wherein the puncture needle is arranged on the upper part of the drip tube, a liquid outlet is formed on the lower part of the drip tube, the puncture needle is used for being connected with a transfusion bottle, the liquid outlet is connected with the transfusion soft tube, a safety valve is arranged in the drip tube, and the inner diameter of the safety valve is smaller than that of the drip tube; a connector is arranged at the joint of the transfusion soft tube and the liquid outlet, and the connector is used for being communicated and connected with the transfusion soft tube and the liquid outlet; and an air inlet which can control opening and closing is formed on the connector. By the stopping alarming device used during liquid medicine and blood transfusion, blood return can be prevented, a liquid medicine can also be transfused totally, and waste can be avoided; and therefore, the stopping alarming device has the significance to transfusion of expensive liquid medicines such as antitumor medicines.

Description

technical field [0001] The invention relates to an infusion device, in particular to an infusion transfusion hemostasis alarm device capable of timely sensing exhaust, and belongs to the technical field of medical devices. Background technique [0002] In the prior art, in order to prevent the backflow of blood or air entering the blood vessel after the infusion of the medicinal liquid during clinical infusion, devices such as floating valves or floating plugs are usually installed in the dropper of the infusion set. Devices such as valves or floating plugs block the liquid outlet of the dropper with the sinking of the medicinal liquid, thereby effectively blocking the liquid from the dropper. [0003] In the prior art, the Chinese patent document CN201618231U discloses an infusion set, which is provided with a floating valve in the Murphy's canal, and the floating valve can stop the fluid from the Murphy's canal; when the medicinal liquid flows out, the floating valve As t...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that in the prior art, devices such as floating valves or floating plugs block the liquid outlet of the dropper with the sinking of the medicinal liquid, so that the liquid in the infusion tube at the lower end of the dropper cannot go down. An alarm device for infusion transfusion and hemostasis that prevents blood return and can fully use up the liquid medicine

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