Patent ID: 7879037
Filing Date: 2011-02-01
Classification: A61B

Abstract:
1. A surgical cutting instrument for use with a motor having a drive mechanism, the instrument comprising: an outer tube defining a proximal end, a distal end, a proximal region extending to the proximal end, a distal region extending to the distal end, and a lumen extending from the proximal end to the distal end; a bearing sleeve being substantially tubular in shape and defining a proximal terminus, a distal terminus, and an inner passage extending from the proximal terminus to the distal terminus, at least a portion of the bearing sleeve secured within the lumen of the outer tube; an inner wire assembly defining a proximal section and a distal section, the inner wire assembly extending through the lumen of the outer tube and through the inner passage of the bearing sleeve, the distal section defining an outer diameter in a range of about 0.635 to 1.14 mm; a cutting tip connected to the distal section of the inner wire assembly wherein the cutting tip is a bur defining an outer dimension of not less than about 3 mm.; a coupling chuck adapted for connection to a drive mechanism of a motor, the coupling chuck being connected to the proximal section of the inner wire assembly; and a housing maintaining the proximal region of the outer tube and the coupling chuck, the housing being adapted for connection to a motor.