GRIPPING TYPE SURGICAL MACHINE

摘要

For removing body tissue, especially in arthroscopic surgery of knee and shoulder joints. An auger-like helical cutter (48) is driven at speeds in excess of 1000 rp m within a stationary outer cylindrical sheath (36). The sheath (36) has a pair of longitudinally-extending diametrically-opposed tab members (38) each of which has at least one edge ground to provide a cutting edge which cooperates with the cutter (48). The end of the cutter (48) is concave to present a fish-tail shape, enabling it to effect an axial boring cut.