MEDICAL FASTENER

To provide an improved medical fastener.SOLUTION: A medical fastener includes: a slender shaft having a proximal end part and a distal end part; a first screw thread spirally wound around the shaft, and a self-tapping cutter. The first screw thread includes a facet for defining the surface as an upp...

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Bibliographic Details
Main Author GARY JACK REED
Format Patent
LanguageEnglish
Japanese
Published 07.03.2019
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:To provide an improved medical fastener.SOLUTION: A medical fastener includes: a slender shaft having a proximal end part and a distal end part; a first screw thread spirally wound around the shaft, and a self-tapping cutter. The first screw thread includes a facet for defining the surface as an upper flank and a lower flank, the upper flank and the lower flank being arranged substantially in a parallel relation. The self-tapping cutter includes a claw-type cutting element including a sharp front edge, a rear edge which is not so sharp, and a tank 55 functionally connected to the front edge and the rear edge for receiving a bone chip inside.SELECTED DRAWING: Figure 5 【課題】改善された医療用ファスナを提供する。【解決手段】医療用ファスナであって、近位端部および遠位端部を有する細長い軸と、軸の周りに螺旋状に巻かれた第１のねじ山と、セルフタッピンカッターと、を備える。第１のねじ山は、上フランクおよび下フランクとして表面を画定するファセットを有し、上フランクおよび下フランクが、実質的に平行関係に配置される。セルフタッピンカッターは、鋭利な前縁、それほど鋭利でない後縁、および、内部に骨片を受容するための、前縁および後縁に機能的につながっている槽５５を含む鉤爪型切断要素を有する。【選択図】図５
Bibliography:Application Number: JP20180148509