Orthopedic drive assembly

Details Orthopedic drive assembly Orthopedic drive assembly

1986-02-19

1988-03-01

Salce, Patrick R.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

310 50, 318139, 429 86, 128 92VT, H02J 700

Patent

active

047288760

ABSTRACT:
A cordless rechargeable replaceable battery assembly powered drive assembly for driving orthopedic surgical instruments in which the battery has silver and zinc oxide electrodes in sodium hydroxide electrolyte to provide low voltage high current power. The switch is encased in the battery assembly, the battery cells are vented through a microporous polymeric curtain to restrict expulsion of electrolyte, a two speed transmission is provided to change drive speeds, and a brush block on the motor has contacts adapted to be connected in different combinations to change the motor rotation direction.

REFERENCES:
patent: 3440465 (1969-04-01), Pratt et al.
patent: 3909302 (1975-09-01), Mermelstein
patent: 3973179 (1976-08-01), Weber et al.
patent: 4081704 (1978-03-01), Vassos et al.
patent: 4441563 (1984-04-01), Walton, II
Stryker Surgical System, System II Ortho Power 90 Battery Powered Surgical Instruments Maintenance Manual & Operating Instructions and Sales Literature.
Dyonics Cordless Surgical Instruments Sales Literature.

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