Device and method for determining proper seating of an orthopaedic prosthesis

摘要

An orthopaedic prosthesis includes a curved outer surface configured to abut a patient's bone when the orthopaedic prosthesis is implanted therein. The outer surface may or may not be electrically conductive. A channel is defined in the outer surface in which one or more electrical conductors are positioned. A switch is positioned at a first location on the outer surface and is configured to establish an electrical connection between the electrical conductor and the outer surface (e.g., an electrical trace) and/or another electrical conductor when the first location of the outer surface is pressed against the patient's bone. The switch may be embodied as an end of the electrical conductor or a more complex switch such as a push-button type switch.

主权项

1. A method for implanting an acetabular cup in a patient, the method comprising:
placing the acetabular cup in an acetabulum of the patient; measuring a circuit parameter of an electrical circuit secured to the acetabular cup; determining whether the measured circuit parameter has a predefined relationship to a threshold value of the circuit parameter; and adjusting a position of the acetabular cup in response to determining the measured circuit parameter has the predefined relationship to the threshold value.