Disposable self-sealed automatic liquid-stopping transfusion device

Abstract

The invention relates to a disposable self-sealed automatic liquid-stopping transfusion device comprising a bottle plug piercing device, a dropper, a dripping chamber, a hose, a flow adjuster, a medicine liquid filter, a connector and a vein transfusion needle. A safety mechanism is formed by a spacing member disposed in a dripping chamber body and a floating body arranged between the spacing member and a liquid outlet, wherein the floating body is provided with a fixed column core, a sealing membrane, a neck and a liquid passing groove; the diameter of the fixed column core is in sealed cooperation with the liquid outlet; the fixed column core is fixedly guided on the inner side of the liquid outlet with decrease of a medicine liquid level; the sealing membrane and the liquid outlet form a sealing surface; when medicine liquid is almost finished, the floating body sinks and blocks the liquid outlet of the transfusion device with the decrease of the liquid level of the transfusion device, so stopping effect of medicine liquid can be achieved. The disposable self-sealed automatic liquid-stopping transfusion device is rationally designed and simply structured and easy to manufacture; the device can be widely applied to present transfusion devices; and with a safety protection function added to the transfusion device, safe transfusion can be achieved.

Description

[0001] Technical field: [0002] The invention relates to a disposable medical appliance, in particular to a disposable self-sealing automatic liquid stop transfusion device. [0003] Background technique: [0004] As we all know, my country has promoted the use of ordinary disposable infusion sets since the 1980s, and has a history of more than 30 years. It has played a positive role in preventing cross-infection in clinical infusions; There are certain shortcomings: when the infusion is completed or the infusion group is alternated, the air is easy to enter the infusion hose. If the treatment is not timely, the air input into the human body will have an impact on the patient's health; it also increases the care of the medical staff. The intensity of work can easily lead to doctor-patient disputes; therefore people expect to have a safer and more effective product, so that the majority of medical staff and patients can use it safely and safely; in order to solve the above-mentio...

AI Technical Summary

Problems solved by technology

[0004] As we all know, my country has promoted the use of ordinary disposable infusion sets since the 1980s, and has a history of more than 30 years. It has played a positive role in preventing cross-infection in clinical infusions; There are certain shortcomings: when the infusion is completed or the infusion group is alternated, the air is easy to enter the infusion hose. If the treatment is not timely, the air input into the human body will have an impact on the patient's health; it also increases the care of the medical staff. The intensity of work can easily lead to doctor-patient disputes; therefore people expect to have a safer and more effective product, so that the majority of medical staff and patients can use it safely and safely; in order to solve the above-mentioned technical problems, some existing technologies such Technical solutions such as:

[0008] The above-mentioned patents generally have the following deficiencies in practical applications: First, the seal between the floating body and the liquid outlet at the bottom of the dropping funnel or the liquid outlet at the bottom of the housing is sealed by contacting the sealing diaphragm on the plane, and the sealing film When there is a certain space inside the tablet and the floating body, it is easy to generate air bubbles when the infusion alternates; secondly, the accuracy of the seal between the floating body and the liquid outlet at the bottom of the dropping funnel is high, and the existing production process is difficult to meet the requirements of complete sealing. The sealing reliability is not high, and the safety is low; the third is that the sealing diaphragm must be designed to be thinner in order to effectively wrap the sealing outlet, so that in practice, the protruding end of the outlet of the liquid medicine is easy to pierce the membrane, resulting in cannot be sealed

Images