Wedge shaped suture anchor and method of implantation

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/04 (2006.01) A61B 17/68 (2006.01) A61B 17/00 (2006.01) A61B 17/06 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2224234

This invention is a suture anchor (300A) having an annular displaced corner and abutment wall which act to seat the suture anchor firmly within a bore hole in substrate (601). Application means are also disclosed which hold the suture anchor on a frangible shaft for insertion and upon completion of the insertion permit fracture of the frangible portion and removal of the instrument. In another embodiment the suture anchor comprises a substantially wedge-shaped body having a smaller distal end and a larger proximal end, means (330A) thereon for retaining a suture (500), and means thereon for releasable connection to an inserter shaft; a boundary surface and a plow surface of the body intersecting to form a biting edge at the proximal end of the body; and the boundary surface and an abutment surface of the body intersecting to form a cam surface at the proximal end of the body.

L'invention concerne une ancre (300A) de fil de suture présentant une paroi d'angle et de butée annulaire décalée qui permet d'immobiliser l'ancre à l'intérieur d'un orifice pratiqué dans un substrat (601). Elle porte également sur des moyens d'application qui maintiennent l'ancre de fil de suture sur une tige frangible à insérer et permettent, après l'insertion, la rupture de la partie frangible et l'extraction de l'instrument. Dans un autre mode de réalisation, l'ancre de fil de suture comporte un corps sensiblement cunéiforme ayant une extrémité distale plus petite que son extrémité proximale, et sur lequel sont prévus des moyens (330A) permettant de retenir un fil de suture (500), et des moyens permettant l'accouplement réversible sur une tige d'insertion; une surface de démarcation et une surface de perçage du corps se rencontrant pour former un bord de pénétration au niveau de l'extrémité proximale du corps; et la surface de démarcation et une surface de butée du corps se rencontrant pour former une surface de came au niveau de l'extrémité proximale du corps.

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