Patent ID: 11864789
Assignee: THE SPECTRANETICS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A device for removing an implanted object from a body vessel, the device comprising:
an outer sheath;
an inner sheath disposed within the outer sheath, the inner sheath comprising a cutting tip having a cutting surface;
a cutting tip drive mechanism comprising a motor configured to rotate the cutting tip, wherein, upon actuation of the motor, the cutting tip rotates and translates longitudinally;
a sensor, wherein the sensor provides a position signal indicative of a home position for the cutting tip drive mechanism; and
a controller comprising a non-transitory computer-readable medium comprising instructions that, when executed, actuate the motor and calibrate a position of the motor based at least in part on the position signal received from the sensor while the motor is actuated,
wherein the instructions cause the controller to rotate the motor in a first direction until the position signal indicating the home position for the cutting tip drive mechanism is received,
wherein the instructions further cause the controller to rotate the motor in a second direction opposite the first direction until the position signal indicating the home position for the cutting tip drive mechanism is again received.