Apparatus for attaching soft tissue to bone

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/86 (2006.01) A61B 17/04 (2006.01) A61B 17/064 (2006.01) A61B 17/88 (2006.01) A61F 2/08 (2006.01)

Patent

CA 2183984

This invention is an anchor (78) for attaching soft tissue to a bone. The anchor employs a head (80) having a central dome with a suture bore (86) extending therethrough. The dome also includes a pair of substantially flat, oppositely disposed lands (100, 100a) configured for engagement by a driving tool (120) for inserting the anchor into bones. A shaft (90) extends from the head, and includes a first series of helical threads (92) having a first diameter, and a second series of helical threads (94) interleaved with the first series ofthreads. The second series of threads has a diameter substantially different than the first diameter. The anchor further employs a guide wire bone (114) extending along the length of the anchor shaft.

La présente invention se rapporte à un ancrage (78) permettant de fixer des tissus mous sur un os. L'ancrage utilise une tête (80) comportant un dôme central avec un passage de suture (86) le traversant. Ce dôme comprend également une paire de plages (100) (100a) pouvant venir en prise avec un outil de vissage (120) servant à introduire l'ancrage dans l'os. Une tige (90) s'étend depuis la tête et comprend une première série de filets hélicoïdaux (92) présentant un premier diamètre, ainsi qu'une deuxième série de filets hélicoïdaux (94) entrelacés avec la première série de filets. La deuxième série de filets présente un diamètre essentiellement différent du premier diamètre. L'ancrage présente en outre un passage (114) de fil de guidage s'étendant sur toute la longueur de la tige d'ancrage.

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