Disposable safe transfusion needle

Abstract

The invention relates to a disposable safe transfusion needle composed of a conduit, a puncture needle stand, a puncture needle, a spring and a protective sleeve, characterized in that: the protective sleeve is in the needle point position of the puncture needle and completely covers the needle point when leaving factory; when in use, the handle of the protective sleeve is pinched by hand, then the protective sleeve is distorted so that the needle point of the puncture needle points to the needle point outlet on the protective sleeve, and then the protective sleeve is pulled downwards to protrude out the puncture needle until the protective sleeve is clamped with the needle stand; and after being used, the protective sleeve is lightly pushed to the direction deviated from the needle handle by hand, the protective sleeve clamped with the puncture needle stand is disengaged; and due to the actions of the spring and an inner inclined surface on the protective sleeve, when the needle point returns into the protective sleeve, the needle point automatically deflects in the direction without freely protruding forwards.

Description

technical field [0001] The invention relates to a disposable safety infusion needle widely used for medical purposes. Background technique [0002] Disposable intravenous infusion needle is an indispensable medical device in the process of intravenous infusion, blood collection and treatment. At present, the safety design of the infusion needles used in clinical practice is to set a plastic sleeve on the surface of the needle body of the infusion needle to prevent the needle body from being contaminated. When using it, the plastic sleeve must be removed first, and then the venipuncture operation , when the infusion is completed, the plastic sleeve often disappears and cannot protect the needle body and needle point after use. occur. [0003] There are also units or individuals in China who have conducted research on this issue, such as: ZL: 02112068.4, which describes "a single-wing infusion needle with a safety device" and ZL: 02112106.0, which describes "an infusion need...

AI Technical Summary

Problems solved by technology

However, its structure has certain shortcomings in clinical operation: its infusion needle sheath is located at one end of the infusion needle hose (near the infusion filter side) when it leaves the factory, and the body surface of the infusion needle still needs a protective cover for the production unit. It causes waste. In addition, the safety device is a circular tube without a hand-held structure. When in use, the infusion needle handle must be aligned with the slit opened so that the needle handle can enter the safety protection tube, and this alignment work is very difficult. It is troublesome, and the nurse needs to rotate the protective tube so that the V-shaped notch at the tip is aligned with the infusion needle handle to achieve

Therefore, its structural defects cause difficulties in clinical use and are not conducive to the promotion and use of its products.

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