Methods and apparatus for delivering and positioning sheet-like materials in surgery

摘要

An implant delivery system for delivering a sheet-like implant is disclosed. The implant delivery system includes a distal guidewire port for receiving the proximal end of guidewire after the guidewire distal end has been affixed to a first point on bone or other tissue. The implant delivery system is tracked over the guidewire to a selected position defined by the guidewire attachment. The device includes an implant spreader assembly disposed proximate the distal end of a delivery shaft. The implant spreader assembly includes a first arm and a second arm. The arms are coupled to the delivery shaft such that the first arm and second arm are moveable between a closed position and an open position. When pivoting to the open position the distal end of each arm travels in a generally transverse direction to spread a sheet-like implant.

主权项

1. An implant delivery system for delivering a sheet-like implant, the implant delivery system comprising:
a delivery shaft having a proximal end and a distal end defining a generally longitudinal direction; an implant retainer assembly proximate the distal end of the delivery shaft, the implant retainer assembly comprising a post and a mating surface having a bottom side facing a top side of the post, the implant retainer assembly configured to releasably couple a sheet-like implant between the post and the mating surface with a bottom side of the sheet-like implant facing the post and an opposite top side of the sheet-like implant facing the mating surface; an implant spreader assembly proximate the distal end of the delivery shaft, the implant spreader assembly having a plurality of arms rotatable from a first closed position to a second open position, wherein in the second open position the plurality of arms spread the sheet-like implant positioned on the implant retainer assembly; and, a guidewire port proximate the distal end of the delivery shaft for receiving a guidewire therethrough, wherein the guidewire port location is positioned in known relation to an implant when placed on the implant retainer assembly.