TISSUE REMOVAL SYSTEM

摘要

A tissue removal system includes an outer tubular member, and an inner tubular member configured to rotate and oscillate axially relative to the outer tubular member. The proximal end of the inner member is coupled to an external drive shaft, and the proximal end of the external drive shaft is coupled to a reversible motor comprising a rotatable output shaft operatively coupled to the inner tubular member, a first motor control switch disposed within the housing is actuated when the inner tubular member is in its distal position relative to the housing, and a second motor control switch disposed external to the housing is actuated by a user, wherein the respective motor and first and second control switches are operatively coupled to motor control circuitry configured such that when the second motor control switch is actuated, actuation of the first motor control switch causes the motor output shaft to change direction, and when the second motor control switch is not actuated, actuation of the first motor control switch causes the motor to turn off.