Patent ID: 8894654
Filing Date: 2014-11-25
Classification: A61B,B23B,B25B

Abstract:
1. A medical driving device comprising: a housing having a proximal end and a distal end and a hand-held portion near the proximal end of the housing; a first drive shaft extending through a region of the housing between the proximal and distal ends; a first motor coupled to a region of the first drive shaft; a second motor coupled to a second drive shaft; a coupler coupled to the second drive shaft, wherein the coupler is interchangeably connected to a working tool; a tool guide assembly coupled to the housing, the tool guide assembly comprising: a torque sensor configured to sense torque in at least the second motor by continuously measuring current used to drive the second motor to sense in real-time a change in torque; and a programmable electronics package programmed to keep constant rotations per minute (RPM) of the second motor preventing working tool rotational acceleration or deceleration, and programmed to integrate over time the sensed torque from the torque sensor to obtain energy, which correlates to material strength of work penetrated.