Patent ID: 9744654
Date: 2017-08-29
CPC Classifications: A61B,B25B

Claim:
1. A driver configured to rotatably drive an implant and apply a counter torque comprising: a handle configured to be grasped by a user; a driver shaft having a proximal end coupled to the handle and a distal end configured to mate with an implant; a counter torque shaft having a proximal end coupled to the handle, countertorque shaft having a distal tip that is laterally offset from the driver shaft; and a drive mechanism including a first gear in mesh with a second gear, the first gear being configured to rotate with the handle; wherein rotating the handle rotates the driver shaft and the first gear in a first direction, thereby rotating the second gear in a second direction that is opposite to the first direction such that when the counter torque shaft is orbitally constrained relative to the driver shaft, the counter torque shaft applies a counter torque.