Surgical instrument

Details Surgical instrument Surgical instrument

A - Human Necessities

61

B

128/113

A61B 17/32 (2006.01)

Patent

CA 1272926

ABSTRACT OF THE DISCLOSURE A hand held surgical instrument for use in removing body tissue from a human body. It is particularly useful in arthroscopic surgery of joints such as of the knee or shoulder, but may also be used to remove tissue from the stomach, abdomen jaw or other portions of the body. An auger-like helical cutter is motor driven at speeds in excess of 1,000 rpm within a stationary outer cylindrical sheath member. The helical cutter is ground to provide a generally concave distal end which gives it a generally fish-tailed appearance and the ability to cut endwise, i.e., to effect an axial boring cut. In addition, the cylindrical sheath member is provided with a pair of longitudinally extending, diametrically opposed tab members at its distal end. Each of the tabs has at least one longitudinally extending edge thereof ground to provide a cutting edge which co-acts with tub auger-like cutter blade to sever body tissue insertable between the tabs.

498894

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