Safe butterfly needle

Abstract

The invention relates to the technical field of butterfly needles, in particular to a safe butterfly needle. The safe butterfly needle comprises a fixed cover (2), a needle body (1), and a protection cover (3), wherein the fixed cover (2) is internally provided with a cavity (21), the needle body (1) comprises a syringe needle (11) and a fin component (13), wherein the syringe needle (11) and the fin component (13) are fixedly arranged inside the cavity and are connected in the axial direction, and the syringe needle extends out of the opening of the front end of the cavity; the protection cover (3) is in a cylindrical shape, is movably arranged in the fixed cover and is arranged outside the needle body in a sleeving mode, the protection cover has a retracting position and a protecting position, the retracting position is arranged in the cavity of the fixed cover and has no influence on the work of the syringe needle, and the protecting position is moved to the front end of the syringe needle, the portion, corresponding to the fin component, of the cylinder wall of the protection cover is provided with axial slots (31), and the axial slots (31) allow the fin component to penetrate through when the protection cover moves from the retracting position to the protection position. The safe butterfly needle avoids the situation to the largest extent that liquid in the syringe needle leaks due to vibration caused by retracting and pulling operation of the syringe needle and the protection cover, and then the liquid is directly dripped on the skin of nursing personnel or the ground.

Description

technical field [0001] The invention relates to the technical field of butterfly needles, in particular to a safety butterfly needle. Background technique [0002] In the medical practice of intravenous infusion, blood transfusion, blood collection, arterial and venous hemodialysis, etc., the intravenous infusion needles, venous blood transfusion needles, venous blood collection needles, arterial and venous hemodialysis needles traditionally called "butterfly needles" are usually configured On venous infusion sets, venous blood transfusion sets, venous vacuum blood collection sets, and arteriovenous lines for hemodialysis. The butterfly needle consists of a needle used to pierce into a blood vessel and a needle cap that covers the needle. In order to prevent the used needles from polluting people, medical personnel need to pack the needles extracted from the blood vessels into the original needle caps. However, when the traditional butterfly needle is used to pull out the ...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the liquid in the needle is inevitably caused by the vibration caused by the two pulling operations after the butterfly needle in the prior art is pulled out and the sheath is pulled out at the same time after the medical staff completes the clinical operation. A little leakage occurs, there are certain safety hazards, caus

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