Apparatus and method for monitoring the position of an orthopaedic prosthesis
AssigneeDePuy Products, Inc.
InventorsMark R. DiSilvestro, Jason T. Sherman, Jose F. Guzman, Edward J. Caylor, III
Life of this patent
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Abstract
A system, apparatus, and method for determining a position of an orthopaedic prosthesis includes a patient support platform, a sensor array coupled to the patient support platform, and a controller electrically coupled to the sensor array. The sensor array is configured to generate data signals in response to an output signal of a signal source(s) coupled to the orthopaedic prosthesis and/or a bone of the patient. The controller is configured to determine a position of the orthopaedic prosthesis and/or the bone of the patient based on the data signals.
Claims10
An apparatus for monitoring the position of an orthopaedic prosthesis implanted in a body of a patient, the apparatus comprising:
- a patient support platform configured to support a patient in a standing position, the patient support platform including a top planar surface;
- a sensor array coupled to the patient support platform and configured to generate data signals in response to an output signal received from a signal source coupled to the orthopaedic prosthesis implanted in the body of the patient while the patient is supported by the patient support platform in the standing position, the sensory array including (i) a first directional antenna having a first boresight, (ii) a second directional antenna having a second boresight, (iii) a third directional antenna having a third boresight, each of the first, second, and third boresights being coplanar with each other, and (iv) a fourth directional antenna having a fourth boresight that is non-coplanar with the first, second, and third boresights, each of the first, second, third, and fourth boresights being directed toward a common volume of space;
- a jig coupled to the patient support platform and comprising a first patient securing member located a first distance above the patient support platform and a second securing member located a second distance above the patient support platform substantially equal to the first distance, the first and second patient securing members being positionable to apply pressure in opposing directions to a portion of the body of the patient to secure the portion of the body of the patient (i) in a fixed position relative to the sensor array and (ii) within the common volume while the patient is standing on the patient support platform, the portion of the body of the patient having the orthopaedic prosthesis implanted therein;
- and
- a controller electrically coupled to the sensor array and configured to determine the position of the orthopaedic prosthesis based on the data signals received from the sensor array.
Dependencies are inferred from the claim text.