Surgical instrument

Details Surgical instrument Surgical instrument

1985-01-23

1987-03-17

Thaler, Michael H.

Surgery

Truss

Pad

1283051, 604 22, 30133, 30240, A61B 1732

Patent

active

046499199

ABSTRACT:
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 the auger-like cutter blade to sever body tissue insertable between the tabs.

REFERENCES:
patent: 3732858 (1973-05-01), Banko
patent: 3945375 (1976-03-01), Banko
patent: 4067340 (1978-01-01), Le Noir
patent: 4203444 (1980-05-01), Bonnell et al.
patent: 4274414 (1981-06-01), Johnson et al.
patent: 4368734 (1983-01-01), Banko
patent: 4512344 (1985-04-01), Barber
patent: 4517977 (1985-05-01), Frost

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