Electricity: motive power systems – Battery-fed motor systems
Patent
1996-03-29
1998-05-05
Masih, Karen
Electricity: motive power systems
Battery-fed motor systems
388907, 388937, 318114, 318119, 318280, H02P 100
Patent
active
057479534
ABSTRACT:
A powered surgical tool includes a motor, a motor control module for controlling the actuation of the motor, and a trigger assembly for allowing the user to enter user-selected commands indicative of desired motor rotation. The trigger assembly includes a number of moving magnets located adjacent the sealed housing that contains the circuitry forming the motor control module. There are a set of magnetic field sensors in the motor control module housing. As the magnets are displaced in response to the user's actuation of the switches, the sensors generate signals representative of the user-selected motor commands. The motor control module further includes a motor control circuit and a direction controller circuit that allow the motor to be driven in either forward, reverse or oscillatory rotation. When the motor is driven the oscillatory rotation, the direction control circuit and the motor control circuit cooperate to ensure the periodic reversal of the motor does not generate significant mechanical vibrations.
REFERENCES:
patent: 5136220 (1992-08-01), Philipp
patent: 5136469 (1992-08-01), Carusillo et al.
patent: 5207697 (1993-05-01), Carusillo et al.
patent: 5258755 (1993-11-01), Kuckes
Masih Karen
Stryker Corporation
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