Patent ID: 8945165
Filing Date: 2015-02-03
Classification: A61B,Y10T

Abstract:
1. A motorized surgical handpiece, comprising: a drive shaft having a proximal and coupleable to a motor of the motorized surgical handpiece, the drive shaft having a first prong and a second prong, the first prong and the second prong each having a distal end, each of the first prong and the second prong extending distally from the proximal end of the drive shaft, wherein the first prong and the second prong are asymmetric relative to each other, wherein the first prong and the second prong define a slot therebetween, the slot being configured to engage a drive tang of a surgical tool, wherein the first prong is longer than the second prong, wherein the distal end of the first prong is tapered at a first predetermined angle and rounded at a first predetermined radius, wherein the tapered and rounded distal end of the first prong is operative to contact the drive tang of the surgical tool, and to cause rotation and subsequent insertion of the drive tang into the slot defined between the first prong and the second prong, thereby allowing full engagement of the drive tang and the drive shaft, and wherein the motor is configured to rotate the drive shaft during operation of the motorized surgical handpiece.