Safety syringe

Abstract

The invention belongs to the field of medical instruments, particularly relates to a safety syringe. The safety syringe comprises a syringe cylinder and a syringe needle connected to the front end of the syringe cylinder. A safety sleeve is sleeved on the outer portion of the syringe cylinder. A clamp ring I is arranged in the safety sleeve and close to the tail end of the syringe cylinder. A contact I extending forwards is arranged on the clamp ring I. The syringe needle comprises a syringe plug. A clamp ring II is sleeved on the syringe plug. The contact I and a contact II are arranged on the clamp ring I and the clamp ring II respectively, and a rubber fixing ring is arranged on the outer portion of the syringe needle, so that the safe sleeve can be pushed forwards to play a role in isolating the syringe needle from the outside after the syringe is used, a used syringe is effectively prevented from polluting and damaging environment, and secondary spreading of diseases is avoided; the safety syringe is simple in structure and convenient to operate, and danger coefficient of medical workers is greatly lowered.

Description

technical field [0001] The invention belongs to the field of medical equipment, and more specifically relates to a safety syringe. Background technique [0002] Most of the syringes used for infusion and blood transfusion are disposable. Before use, the needle is covered with a needle cap to prevent the needle from contacting the outside world. After the syringe is used, the medical staff often cannot find the needle that was originally removed from the needle. cap, or there is no time to put the needle cap back on, etc., so that the needle of the used syringe is directly exposed to the outside, resulting in the pollution and damage of the used syringe needle to the external environment. The inner diameter is small, which increases the risk of the medical staff being punctured during the process of putting the needle cap back on, and is extremely likely to cause injury to the medical staff. In order to solve this kind of problem, a class of injection needles has appeared in...

AI Technical Summary

Problems solved by technology

[0002] Most of the syringes used for infusion and blood transfusion are disposable. Before use, the needle is covered with a needle cap to prevent the needle from contacting the outside world. After the syringe is used, the medical staff often cannot find the needle that was originally removed from the needle. cap, or there is no time to put the needle cap back on, etc., so that the needle of the used syringe is directly exposed to the outside, resulting in the pollution and damage of the used syringe needle to the external environment. The inner diameter is small, which increases the risk of medical staff being punctured during the process of putting back the needle cap, which is very easy to cause injury to medical staff

In order to solve this kind of problem, a class of injection needles has appeared in the prior art, that is, a safety sleeve is added to the outside of the needle, but after use, this type of safety sleeve will often be squeezed and collided with more rubbish. The phenomenon of shedding occurs in the middle of the needle, but it still cannot 100% solve the problem of pollution and damage to the external environment by the needle of the syringe after use.

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