Surgical cutting instrument

Details Surgical cutting instrument Surgical cutting instrument

1993-02-12

1995-04-11

Pellegrino, Stephen C.

Surgery

Instruments

Orthopedic instrumentation

606 79, 606170, 606180, A61B 1732

Patent

active

054053480

ABSTRACT:
A surgical drilling instrument comprises a nose body attached to a power source, the nose body having a shaft support tube extending therefrom around a drive shaft with a cutter. The forward end of the shaft support tube has a bearing construction supporting the drive shaft. A water supply is directed into the annular space between the shaft support tube and the drive shaft, and is further directed over the bearing construction onto the cutter. This (1) aids in supporting the drive shaft; (2) cools the cutter; and (3) flushes the cutting area.

REFERENCES:
patent: 3071861 (1963-01-01), Saffir
patent: 3732858 (1973-05-01), Banko
patent: 4456010 (1984-06-01), Reimels et al.
patent: 4568642 (1986-02-01), DeForrest et al.
patent: 4844064 (1989-07-01), Thimsen et al.
patent: 4856503 (1989-08-01), Schelhas
patent: 4976720 (1990-12-01), Machold et al.
patent: 5084052 (1992-01-01), Jacobs
patent: 5222956 (1993-06-01), Waldron

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