Surgery – Instruments – Orthopedic instrumentation
Patent
1998-09-29
1999-11-30
Buiz, Michael
Surgery
Instruments
Orthopedic instrumentation
606 85, F16H 5708
Patent
active
059934549
ABSTRACT:
A drill attachment (10) for decreasing the rotational speed/increasing the output torque of a cutting accessory (14) that is attached to a drill such as a surgical drill (10). The drill attachment has an input drive shaft (34) that is coupled to the drive shaft (16) of the drill to rotate in unison with the drill drive shaft. The input drive shaft rotates a set of axially fixed input planet gears (58). The input planet gears rotate a ring gear (66) that is fitted around the input planet gears. The ring gear rotates a set of axially fixed output planet gears (70). The planet gears rotate an output drive shaft (84). By the selective dimensioning of the drive shaft and gears the output speed/torque can be reduced and increased as desired.
REFERENCES:
patent: 3598188 (1971-08-01), Foster
patent: 3669199 (1972-06-01), Cullen et al.
patent: 5863272 (1999-01-01), Anderson
Stryker Instruments Blueprint, Handpiece Assembly Reamer Dec., 1990.
Stryker Instruments Blueprint, Hudson/Modified Trinkle Reamer Assembly, Apr., 1996.
Stryker Instruments Blueprint, Cordless Driver Handpiece Assembly, Jul., 1995.
Stryker Instruments Blueprint, System 4 Hudson/Modified Trinkle Reamer Attachment, Part No. 4103-235-010, Jul., 1998.
Stryker Instruments Blueprint, Rotary Handpiece Assembly, Part No. 4103-001-010, Aug., 1998.
Bui Vy Quang
Buiz Michael
Stryker Corporation
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