Method and apparatus for attaching connective tissues to...

A - Human Necessities – 61 – B

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A61B 17/04 (2006.01) A61F 2/08 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2420509

An innovative bone anchor and methods for securing connective tissue, such as tendons, to bone, which permit a suture attachement that lies entirely beneath the cortical bone surface. Advantageously, the suturing material between the connective tissue and the bone anchor is secured without the need for trying a knot. The suture attachment to the bone anchor involves the looping of a length of suturing material around a self-locking wedge block in the anchor, thereby avoiding an eyelet connection which requires a kot and which concentrates stress on a very small portion of the suturing material. Thus, failure rates are greatly decreased over cnventional techniques, and the innovative procedures are significantly easier to perform than conventional techniques.

L'invention concerne un dispositif d'ancrage d'os, et des procédés de fixation de tissu conjonctif, tels que des tendons, à un os permettant de fixer une suture qui s'étend entièrement en-dessous de la surface corticale de l'os. Le matériau de suture placé avantageusement entre le tissu conjonctif et le dispositif d'ancrage de l'os est fixé sans avoir besoin de faire un noeud. La fixation par suture au dispositif d'ancrage de l'os implique de faire une boucle de suture sur une longueur du matériau autour d'un coin de blocage auto-verrouillant dudit dispositif d'ancrage, ce qui évite d'effectuer une connexion au moyen d'un oeillet de suture nécessitant un noeud et concentrant une force de tension sur une très petite partie de matériau de suture. De ce fait, le taux d'échec est grandement réduit par rapport aux techniques classiques, et les procédures innovantes sont beaucoup plus faciles à exécuter que dans ces techniques classiques.

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