Resources Contact Us Home
Motor controlled surgical system and method having self clearing motor control

Image Number 8 for United States Patent #5672945.

A surgical system, adapted to operate with at least one surgical device, has a handpiece containing a motor which is adapted to receive the surgical device. The surgical device is driven through a continuum of positions by the motor output shaft. A controller microprocessor controls the operation of the system. The motor has sensors for generating electrical position signals and the controller is responsive to input signals for defining both a stop position and a reversal position for the surgical device. As a result, the controller initiates operation of the surgical device at the so called stop position and stops operation of the surgical device so that it comes to rest substantially at the stop position. In an oscillatory mode of operation, the controller also forces reversals to occur at a reversal position dictated by the system, under the control of the user, unless a stall condition is sensed, in which case the reversal takes place as soon as possible. In connection with an arthroscopic cutting device, the control enables the surgeon to control, for example, the opening of the aperture through which tissue and fluids are removed from the surgical site during the reversal and start/stop conditions.

  Recently Added Patents
Reception method and reception apparatus
Semiconductor device, integrated circuit and method of manufacturing an integrated circuit
Adaptive block pre-fetching method and system
Damage resistant antenna
Weighted determination in configuration management systems
Method and device for the detection of defects or correction of defects in machines
  Randomly Featured Patents
Image memory for extended field of view ultrasonic diagnostic imaging
Optical device for aiding color-blind persons in distinguishing colored objects
Optical feedback assembly
Alloy steel powders, sintered bodies and method
Acid catalyzed process for preparing amino acid polymers
DC-89 compounds and process for their preparation
Timing apparatus and method
One-piece machinable index divider with integral pocket
Stator winding control circuit for a brushless d.c. motor
Photographic process with improved replenishment monitoring system