a medical device is described for use in removing material from a body . the removal of material is accomplished by slidably contacting a cutting edge of a cutter member with the inner wall of a sleeve , where the cutting edge cooperates with the inner wall of the sleeve to capture and cut the material . the cutter member may be hollow and may be in fluid communication with a chamber for collection and removal of cut material from the cutter member . the distal tip of the cutter member may extend beyond , or be enclosed within , the sleeve , while the proximal end of the cutter member is mounted on a rotatable shaft .