Patent ID: 7670342
Filing Date: 2010-03-02
Classification: A61B

Abstract:
1. A surgical device for extracting a tissue graft from a tissue, the device comprising: a shaft extending along a longitudinal axis between a proximal portion and a distal portion; a handle extending from the proximal portion of the shaft; a cutting module extending from the distal portion of the shaft, the cutting module comprising a chisel having an inner bore extending substantially along the longitudinal axis of the shaft and bounded distally by a cutting edge removably engaged with the shaft for longitudinal and non-rotational penetration of the tissue and extraction of the tissue graft, the inner bore sized and shaped for receiving the tissue graft cut from the tissue by the cutting edge; and a laser system positioned at least partially within the distal portion of the shaft, the laser system comprising a laser projector for projecting laser indicia distally through the inner bore of the cutting module and onto a surface of the tissue for determining an orientation of the longitudinal axis relative to the surface of the tissue, the laser indicia being a crosshair comprised of a first line extending in a first direction and a second line extending in a second direction substantially perpendicular to the first direction such that when the longitudinal axis of the shaft extends substantially perpendicular to a plane defined by the surface of the tissue the first and second lines extend substantially perpendicular to one another as viewed on the surface of the tissue and when the longitudinal axis of the shaft does not extend substantially perpendicular to the plane defined by the surface of the tissue the first and second lines do not extend substantially perpendicular to one another as viewed on the surface of the tissue, wherein the laser system further comprises a housing containing electronics of the laser systems, and wherein the housing mounted within an interior section of the distal portion of the shaft; wherein the intersection of the first and second lines of the laser indicia is substantially in line with the longitudinal axis.