Medical anti-cross-contamination dosing device

Abstract

The invention discloses a medical anti-cross-contamination dosing device, which includes a syringe, a needle and a needle seat, the needle is fixedly arranged on the needle seat, the needle cylinder is connected with the needle seat through the head, and the outer casing of the syringe is provided with an outer barrel , and the tail of the syringe is fixedly connected to the bottom of the outer barrel, an annular channel is formed between the inner wall of the outer barrel and the outer wall of the syringe, a retaining ring is provided at the mouth end of the outer barrel, and a ring is provided on the side wall of the syringe to match the annular channel. There are connected air holes, the annular passage is provided with an annular piston, the annular piston is connected with the push-pull ring sleeved on the syringe through the connecting rod, and the connecting rod is sleeved with a return spring, and the return spring is located in the annular between the piston and the retaining ring and can be compressed when the annular piston is pulled outward with the push-pull ring. The medical anti-cross-contamination dosing device provided by the invention directly uses the push-pull ring to move to form a negative pressure suction of the medicine liquid, which can effectively prevent the cross-contamination of the medicine liquid during dispensing and dosing, and ensure the safety of medication.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical anti-cross-contamination dosing device. Background technique [0002] At present, the commonly used dosing device in the hospital is an ordinary syringe, which is composed of a syringe, a piston and a push rod. During operation, the medical staff pushes and pulls the piston to move through the push rod to realize operations such as suctioning and mixing the liquid medicine. The process of dispensing medicine is: insert the syringe into the liquid medicine bottle to extract a small amount of medicine liquid; then pull out the syringe and insert it into the medicine powder bottle, inject the medicine liquid into the medicine powder bottle, and after the medicine powder and medicine liquid are completely dissolved, draw out the mixed solution and inject it into the medicine powder bottle. In the infusion bottle. However, in actual use, it has been found that when ...

AI Technical Summary

Problems solved by technology

However, in actual use, it has been found that when medical staff perform operations such as pumping and mixing medicinal liquid, their fingers will touch the push rod, which may cause contamination of the medicinal liquid and easily cause cross-infection

And in the above dispensing process, because the medicine bottle is a sealed structure, a certain negative pressure difference will be generated during operation, which makes the operation very laborious

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