Self-tapping bone needle

Abstract

The invention discloses a self-tapping bone needle. The needle comprises a needle body part and a needle tip part, the needle tip part is provided with a first needle tip section structure and a second needle tip section structure; the first needle tip section structure comprises a main cutting plane extending in an axis direction of the bone needle from the tip end of the needle tip part; the second needle tip section structure comprises an auxiliary cutting plane which extends from the tip end of the needle tip part and intersects with the main cutting plane to form an acute angle. The maincutting plane and the auxiliary cutting plane are intersected to form a cutting edge for cutting bones. The needle body part is provided with a needle body section, the needle body section extends from the tail end of the main cutting plane, and an included angle larger than 90 degrees is formed between the needle body section and the main cutting plane. According to the self-tapping bone needle,the technical problem that an existing bone needle is low in operation efficiency is solved, and the self-tapping bone needle capable of reducing operation steps is provided.

Description

technical field [0001] The invention relates to the field of medical instruments. Specifically, it is a self-tapping bone needle. Background technique [0002] Bone pins are an indispensable medical device in orthopedic surgery. They are used for temporary or long-term fixation of fractured parts. Traditional Kirschner wires, half-threaded pins and screws all need to drill holes in the bone first, and then make the bone The needle goes into the bone. This results in more steps in the operation and lower efficiency, thus making the operation time longer. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the disadvantage of low operation efficiency caused by the existing bone needle, and provide a self-tapping bone needle which can reduce operation steps. [0004] The self-tapping bone needle of the present invention includes a needle body part and a needle tip part, and the needle tip part is provided with a fir...

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