Patent ID: 7611473

Claim:
A tissue extraction and maceration device, comprising: an outer tube having a substantially open distal end that is adapted to be placed on a tissue surface; a shaft rotatably disposed within the outer tube and movable between a first, proximal position in which the shaft is fully disposed within the outer tube, and a second, distal position in which a portion of a distal end of the shaft extends through the substantially open distal end of the outer tube; a tissue harvesting tip formed on the distal end of the shaft, the tissue harvesting tip being effective to excise a tissue sample; and a sizing screen disposed within the outer tube and positioned proximal to the tissue harvesting tip, the sizing screen having openings with a size that prevent passage of excised tissue samples having a size greater than a size of the openings; and a cutting member disposed within the outer tube and coupled to the shaft at a position proximal to the tissue harvesting tip and adjacent to the sizing screen such that excised tissue samples prevented from passing through the sizing screen by the openings are macerated by the cutting member to form tissue samples having a size that can pass through the openings.