Low wear bearing for a surgical retractor

Details Low wear bearing for a surgical retractor Low wear bearing for a surgical retractor

1989-08-01

1991-11-26

Coven, Edward M.

Surgery

Truss

Perineal

74422, A61B 1702

Patent

active

050674773

ABSTRACT:
A low wear bearing system for a surgical retractor including usually four bearings recessed in the retractor housing, each bearing having a generally rectangular projection extending into a corresponding slot in the rack of the rack and pinion type retractor. There are two bearings on each side of the rack spaced longitudinally along the rack. The bearings provide an enlarged buffer area of contact between the rack and the housing to distribute the relatively high internal retraction forces that can be experienced during tissue retraction.

REFERENCES:
patent: 3656364 (1972-04-01), Cable et al.
patent: 4627421 (1986-12-01), Symbas et al.
patent: 4702230 (1987-10-01), Pelta
patent: 4726356 (1988-02-01), Santilli
patent: 4747394 (1988-05-01), Watanabe

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