Surgical implant and surgical kit

Details Surgical implant and surgical kit Surgical implant and surgical kit

A - Human Necessities

61

B

A61B 17/08 (2006.01) A61B 17/04 (2006.01) A61B 17/68 (2006.01) A61F 2/08 (2006.01) A61B 17/00 (2006.01) A61F 2/00 (2006.01) A61F 2/02 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2115778

Surgical kits for the implantation of soft tissue-to-bone anchors and expandable, preferably bioabsorbable, soft tissue anchors. The surgical kits include an embodiment with an outer tube with an expandable anchor releasably attached to its distal end, for guiding the anchor into a predrilled hole; an inner tube with an anchor expanding pin sized for expanding the anchor releasably held in its bore; and a pushrod for pushing the anchor pin into the anchor to expand it and wedge it in a hole. In an alternative embodiment, the anchor pin is attached to the distal end of a pushrod inserted into an outer tube. In one embodiment, the anchor is equipped with downward extending spikes on the underside of an enlarged head for gripping soft tissue and bending barbs to resist withdrawal of the anchor from bone. In another embodiment, the anchor's proximal end has no enlarged head but is equipped with sutures. In a further embodiment, the anchor's enlarged head is tilted at an angle to allow better engagement of spikes with soft tissue.

Trousses chirurgicales pour l'implantation d'ancres pour tissus mous et os et d'ancres extensibles, de préférence bioabsorbables, pour les tissus mous. Les trousses chirurgicales comprennent un modèle muni d'un tube externe avec une ancre extensible attachée à son extrémité distale pour guider l'ancre dans un trou préforé; un tube interne avec une tige d'expansion de l'ancre dimensionné pour déployer l'ancre retenu en son sein; et un poussoir pour pousser la tige de l'ancre dans l'ancre pour la dilater et la coincer dans un trou. Dans un autre modèle, l'ancre est équipée de pointes orientées vers le bas sur le dessous d'une tête élargie pour saisir le tissu mou et plier les barbes pour empêcher que l'ancre ne sorte de l'os. Dans un autre modèle, l'extrémité proximale de l'ancre n'a pas de tête élargie mais est munie de sutures. Dans un autre modèle encore, la tête élargie de l'ancre est inclinée à un angle facilitant l'accrochage des pointes au tissu mou.

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