Disposable venous indwelling needle capable of preventing needle stick injury

Abstract

The invention provides a disposable venous indwelling needle capable of preventing a needle stick injury. The disposable venous indwelling needle comprises a puncture needle and a stick injury preventing safety device which is used for accommodating a point of the puncture needle and preventing exposure of the point, wherein the stick injury preventing safety device comprises a needle stick preventing case, a needle stick preventing clip and a needle preventing blocking piece, the needle stick preventing clip is mounted in the needle stick preventing case and used for preventing the point of the puncture needle from stretching out of the front end of the needle stick preventing case, and the needle preventing blocking piece is mounted in the needle stick preventing case and used for preventing the point of the puncture needle from stretching out of the rear end of the needle stick preventing case. After the point of the puncture needle is accommodated in the needle stick preventing case, the stick injury preventing safety device is added on the basis of functions of the conventional indwelling needle and can lock the point automatically and prevent exposure of the point when guiding the puncture needle out, and a medical worker is effectively prevented from being stuck and infected in an operation process.

Description

technical field [0001] The invention relates to a one-time needle-stick-proof venous indwelling needle. Background technique [0002] The use of intravenous indwelling needles is a new nursing operation technology, which has gradually replaced the traditional scalp steel needles. Compared with the traditional scalp steel needle, its infusion advantages are: the indwelling cannula can be left in the vein for a long time, and it is not easy to puncture the blood vessel wall. The cannula of the venous indwelling needle is guided into the human vein by a puncture needle. Therefore, after the cannula is punctured in place, the guiding puncture needle needs to be withdrawn and discarded. During this process, it is very easy for the nurse to be withdrawn accidentally. The puncturer was stabbed, or the operation of the indwelling needle was affected due to fear of stabbing. At present, many hospitals in my country use intravenous indwelling needles as the main tool for clinical ca...

AI Technical Summary

Problems solved by technology

The name of the invention patent that the applicant has obtained is: a safety needle assembly (patent number: 201420566186.2), which can store the needle tip of the injection needle through its anti-stab safety device after the injection needle is injected, prevent the needle tip from being exposed, and play a role It can prevent the human body from being stabbed, but in the process of specific use, it is necessary for the elastic locking arm of the elastic limiting member to extend into the limiting groove to play a limiting role and limit the injection needle to the sleeve. In the tube, it can neither move forward nor backward (see the authorization text for details), but in actual use, once the elastic limiter cannot limit the movement of the injection needle, it will lead to the exposure of the injection needle. In other words, its The structure without double safety ensures that the injection needle is accommodated in the needle seat

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