Telescopic anti-needling injection needle

Abstract

The invention discloses a telescopic anti-needling injection needle and relates to the technical field of injection needles. The injection needle comprises a needle base, a needle handle and a needletube, wherein the needle tube is sleeved with a protective sleeve for protecting the needle tube, the needle handle is sleeved with a telescopic sliding sleeve assembly for covering the needle tube after elongation, the telescopic sliding sleeve assembly comprises an inner sliding sleeve which sleeves the needle handle and an outer sliding sleeve which sleeves the outermost layer, and multiple middle sliding sleeves are arranged between the inner sliding sleeve and the outer sliding sleeve; the inner sliding sleeve, the multiple middle sliding sleeves and the outer sliding sleeves are sequentially nested, and sliding clamping mechanisms are arranged between the needle handle and the inner sliding sleeve as well as between two adjacent sliding sleeves. The injection needle is safer to a nurse and a patient, can reduce pain and discomfort of the patient and can reduce production cost.

Description

technical field [0001] The invention relates to the technical field of injection needles, in particular to a retractable anti-needle-puncture injection needle. Background technique [0002] At present, the technology of using disposable syringes to draw drugs and inject them intramuscularly is widely used in hospitals. However, most of the disposable syringes currently on the market cannot be truly disposable. If the syringes are reused, it is easy to cause the disease to spread among different people, causing cross-infection and endangering public health; in addition, traditional syringes After use, the needles are exposed outside, which can easily cause needle stick injuries to medical staff, cause psychological panic among medical staff, and even infect diseases in severe cases. Unsafe injections with disposable syringes not only bring infection and spread diseases, but also cause injuries to medical staff to varying degrees due to the occupational exposure of medical st...

AI Technical Summary

Problems solved by technology

[0004] 1. False triggers are prone to occur

When inhaling the liquid medicine, it is necessary to push the piston to the zero scale line to exhaust the air in the syringe. At this time, false triggering is easy to occur, which not only wastes medical equipment, but also wastes the time of medical staff, and even delays the final injection. optimal injection time;

[0005] 2. When the spring bounces the injection needle back to the syringe, it will cause vibration. At this time, the injection needle is still in the patient's body, which will aggravate the pain of the patient;

[0006] 3. The spring structure is complicated, the manufacturing cost is high, and the burden on patients is increased

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