Patent ID: 7591854

Claim:
An instrumented prosthetic knee trial comprising: an articulating surface; a polymer layer at the articulating surface; a body having a curved contoured concave surface, the concave surface being curved in two intersecting planes; and a sensor array between the polymer layer and the curved contoured surface of the body, the sensor array having a curved contour including a convex portion and a concave portion, the convex portion and the concave portion both being curved in two intersecting planes, the convex portion contacting and conforming to the shape of at least part of curved contoured concave surface of the body, the sensor array being capable of generating a signal in response to pressure; the polymer layer having a curved contour including a convex surface and a concave surface, the convex surface contacting and conforming to the shape of at least part of the concave portion of the sensor array, the convex surface of the polymer layer overlying substantially all of the concave surface of the sensor array; wherein the body, sensor array and polymer layer comprise discrete components, the sensor array being adhered to at least one of the convex surface of the polymer layer and the concave surface of the body.