Multi-edge self-drilling bone round needle with scale shield groove

The invention discloses a multi-edge self-drilling bone round needle with a scale shield groove, which includes: a rotary joint handle, a drill needle and a needle rod. The drill needle is arranged onthe top of the needle rod. The drill needle is a polygonal pyramid. The surface of the polygonal pyr...

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Bibliographic Details
Main Author SHEN YINGCHAO
Format Patent
LanguageChinese
English
Published 24.07.2018
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:The invention discloses a multi-edge self-drilling bone round needle with a scale shield groove, which includes: a rotary joint handle, a drill needle and a needle rod. The drill needle is arranged onthe top of the needle rod. The drill needle is a polygonal pyramid. The surface of the polygonal pyramid is provided with a plurality of sharp edges from the top downwards with a slope. An arc grooveis concavely arranged on each sharp edge, which forms an additional two cutting edges. The needle rod is provided with a spiral array of scale shield grooves. The scale shield groove extends downwardin a spiral from the external dome of the needle rod to the bottom. The scale shield groove comprises a middle shuttle groove and a dovetail groove. The dovetail grooves are symmetrically arranged onboth sides of the shuttle groove. The rotary joint handle is arranged at the bottom of the needle rod. Through the above mode, the invention multi-edge self-drilling bone round needle with a scale shield groove, in particular,
Bibliography:Application Number: CN201810112466