Tissue fastener

Details Tissue fastener Tissue fastener

A - Human Necessities

61

B

A61B 17/064 (2006.01) A61B 17/04 (2006.01) A61B 17/068 (2006.01) A61F 2/08 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2396714

A tissue fastener comprises a shaft having a member disposed thereon for lodging the shaft within the tissue, the shaft having a region that is relatively flexible to render a tissue engaging head disposed at a proximal end of the shaft movable with respect to the shaft. In one embodiment, the region comprises substantially an entire length of the shaft and is made from flexible material, such as a mesh, onto which the member and the head are molded. In another embodiment, the shaft comprises generally rigid material, and the region comprises a flexible joint between the shaft and the head. The flexible joint comprises a breakable (e.g., frangible) section of the shaft, and a flexible member (e.g., a plurality of filaments or a flexible tube) extends between the shaft and the head past the breakable section.

L'invention concerne un dispositif de fixation tissulaire qui comprend une tige dans laquelle est disposé un élément servant à loger la tige à l'intérieur du tissu. La tige présente une zone relativement flexible qui permet à une tête de contact avec le tissu, disposée à une extrémité proximale de la tige, de se déplacer par rapport à cette dernière. Dans une forme de réalisation, cette zone comprend sensiblement une pleine longueur de la tige et est faite d'un matériau flexible, tel qu'une maille, sur lequel l'élément et la tête sont moulés. Dans une autre forme de réalisation, la tige comprend généralement un matériau rigide, et la zone comprend un assemblage flexible entre la tige et la tête. L'assemblage flexible comprend une section fragile (p. ex. frangible) de la tige, et un élément flexible (p. ex. plusieurs filaments ou un tube flexible) s'étend entre la tige et la tête, au-delà de la section frangible.

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