Patent ID: 9220612
Filing Date: 2015-12-29
Classification: A61B,A61F

Abstract:
1. An intraoperative system for positioning a mispositioned prosthetic cup inserted into a pelvic bone of a patient to within a first predetermined threshold of a desired orientation relative to a reference frame of the pelvic bone, the system using a position determining system establishing an intraoperative orientation of the mispositioned prosthetic cup, comprising: a positioning device including a set of actuators, said set of actuators having one or more actuators, said positioning device responsive to the intraoperative orientation to identify a group of actuators from said set of actuators, said group of actuators including at least one actuator configured to predictably re-orient the prosthetic cup within the pelvic bone responsive to a strike of the prosthetic cup by said group of actuators, said positioning device further including a selector activating said group of actuators and configured to initiate said strike at a location on the prosthetic cup predetermined to rotate the prosthetic cup within the reference frame by predefined relative rotation amounts of abduction and anteversion, wherein said set of actuators includes four actuators, wherein said location for a first actuator produces a pure abduction rotation of the prosthetic cup relative to the reference frame, wherein said location for a second actuator produces a pure adduction rotation of the prosthetic cup relative to the reference frame, wherein said location for a third actuator produces a pure anteversion rotation of the prosthetic cup relative to the reference frame, and wherein said location for a fourth actuator produces a pure retroversion rotation of the prosthetic cup relative to the reference frame.