Patent ID: 9713499
Date: 2017-07-25
CPC Classifications: A61B,Y10S

Claim:
1. A system for performing an orthopedic operation on a subject, said system comprising: a mechanical mounting member adapted to support a surgical tool guide for use in operating on the subject; a support member rigidly positioned relative to a bed on which the subject is lying, said mechanical mounting member being attached to said support member by a moveable element having a controlled motion drive; a bone attachment element attaching said mechanical mounting member to a bone of the subject in a region where said orthopedic operation is to be performed, such that said mechanical mounting member and its supported tool guide can move with motion of said bone of said subject; a force sensor associated with said bone attachment element, said force sensor adapted to output a force signal in accordance with a first force exerted on said bone attachment element; and control circuitry receiving said force signal and adapted, when said force exceeds a predetermined threshold level, to output a drive signal to said controlled motion device such that a reactive second force is applied to said mechanical mounting member to counteract said first force exerted on said bone attachment element.