Fasteners and fastener delivery devices for affixing sheet-like materials to bone or tissue

摘要

A fastener for attaching a sheet-like implant to tissue or bone. The fastener includes a first arm having a proximal end and a distal end, a second arm having a proximal end and a distal end, and a bridge extending therebetween. Each of the first and second arms include a trunk portion defining at least a portion thereof, the trunk portion having a cavity therein and an aperture through a wall thereof. A claw is disposed in the cavity which is moveable from a first delivery position to a second deployed position. A pull member engages each claw to move the claw from the delivery position to the deployed position.

主权项

1. A fastener for attachment to bone comprising:
a first arm having a proximal end and a distal end, a second arm having a proximal end and a distal end, and a bridge connecting the first arm and second arm, wherein each of the first and second arms include a trunk portion extending over at least a portion of the length thereof, each trunk having a cavity therein and an aperture through a wall of each trunk to the cavity; a claw disposed in each cavity of each trunk wherein each of the claws is moveable from a first retracted position for delivery of the fastener to a second deployed position having a portion of the claw extending through the aperture in active engagement with bone when implanted therein; and, a pull member releasably engaging each of the claws to move the claw from the first to the second position.