Safety injection needle

Abstract

The invention provides a safety injection needle. The safety injection needle comprises a needle seat, an injection needle axially and fixedly connected with the needle seat, and a trigger protectionassembly assembled on the needle seat, wherein the needle seat comprises an assembly part and a fixing part; the trigger protection assembly comprises a housing, a trigger mechanism and an elastic element; the housing is arranged in the shape of a hollow pipe; the trigger mechanism comprises a first trigger mechanism and a second trigger mechanism; the first trigger mechanism can slide along the extending direction of the housing under the action of the elastic element; and the second trigger mechanism can slide along the extending direction of the needle seat under the action of the elastic element, so that after the safety injection needle is used, the injection needle is completely accommodated between the trigger mechanism and the needle seat. The safety injection needle has good protection functions, also has the using state indicating function, and is simple in structure, low in production cost and suitable for promotion and use.

Description

technical field [0001] The invention relates to a safety injection needle and belongs to the field of medical instruments. Background technique [0002] A syringe is a common medical appliance, usually including a syringe, a needle connected to the syringe and a protective cover covering the needle; during use, the protective cover is first removed to expose the needle to complete the injection; After use, the needles and syringes are separated and discarded separately, on the one hand to avoid repeated use of syringes / needles, on the other hand, to prevent cross-infection caused by accidental contact with used needles. [0003] However, during the use of the syringe, since the needle tip is exposed, it will bring a great psychological burden to the patient, and it is easy to cause harm to the human body due to accidental contact with the needle, which makes the use of the syringe in the prior art less friendly. Furthermore, in the process of actual recycling of discarded s...

AI Technical Summary

Problems solved by technology

[0003] However, during the use of the syringe, since the needle tip is exposed, it will bring a great psychological burden to the patient, and it is easy to cause harm to the human body due to accidental contact with the needle, which makes the use of the syringe in the prior art less friendly.

Furthermore, in the process of actual recycling of discarded syringes / needles, due to the lack of protective sleeves, the needles are easy to pierce the storage packaging, causing damage to the human body, and it is impossible to effectively avoid cross-infection caused by accidental contact with the needles; at the same time , In the prior art, there is no obvious difference between the used needle and the needle before use, and it is impossible to judge whether the needle is used or not by the appearance of the needle, which easily leads to the reuse of discarded needles

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