System and method to change a contact point of the muscular-skeletal system
First Claim
1. A method of changing a contact point of a joint in the muscular-skeletal system using quantitative measurements comprising the steps of:
- placing a sensored prosthetic component in the joint wherein the sensored prosthetic component has an articular surface and wherein a plurality of load sensors couple to the articular surface;
measuring a load magnitude with each of the plurality of load sensors applied by the muscular-skeletal system to the articular surface wherein the sensored prosthetic component includes electronic circuitry coupled to the load plurality of sensors, an inertial sensor, and a power source and wherein the electronic circuitry is configured to control a measurement process;
measuring a reference position of the sensored prosthetic component relative to a bone wherein the sensored prosthetic component is coupled to the bone and wherein the inertial sensor is configured to measure the reference position;
transmitting measurement data from the sensored prosthetic component to a processor wherein the measurement data is stored in memory coupled to the processor wherein the processor is configured to calculate a contact point from the measurement data;
displaying the articular surface of the sensored prosthetic component on a display coupled to the processor wherein the display indicates the contact point on the articular surface; and
repositioning the sensored prosthetic component from the reference position relative to the bone; and
displaying movement of the contact point on the display in real-time as the sensored prosthetic component is repositioned wherein the inertial sensor is configured to measure the movement from the reference position.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method for adjusting a contact point of a joint is disclosed. The system comprises a prosthetic component having sensors therein and a remote system to receive and display sensor data. A plurality of sensors of the prosthetic component provide data related to load magnitude and position of load applied to a surface of the prosthetic component. The prosthetic component further includes one or sensors that provide position, rotation, and tilt data. Adjustment of the contact point of the prosthetic component can be performed by repositioning the prosthetic component relative to a bone to which it is coupled. For example, a prosthetic component can be pinned to the bone allowing rotation of the prosthetic component relative to the bone in-situ. A remote system receives sensor data from the prosthetic component allowing viewing of the load magnitude, position of load, and rotation of the prosthetic component.
151 Citations
20 Claims
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1. A method of changing a contact point of a joint in the muscular-skeletal system using quantitative measurements comprising the steps of:
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placing a sensored prosthetic component in the joint wherein the sensored prosthetic component has an articular surface and wherein a plurality of load sensors couple to the articular surface; measuring a load magnitude with each of the plurality of load sensors applied by the muscular-skeletal system to the articular surface wherein the sensored prosthetic component includes electronic circuitry coupled to the load plurality of sensors, an inertial sensor, and a power source and wherein the electronic circuitry is configured to control a measurement process; measuring a reference position of the sensored prosthetic component relative to a bone wherein the sensored prosthetic component is coupled to the bone and wherein the inertial sensor is configured to measure the reference position; transmitting measurement data from the sensored prosthetic component to a processor wherein the measurement data is stored in memory coupled to the processor wherein the processor is configured to calculate a contact point from the measurement data; displaying the articular surface of the sensored prosthetic component on a display coupled to the processor wherein the display indicates the contact point on the articular surface; and repositioning the sensored prosthetic component from the reference position relative to the bone; and displaying movement of the contact point on the display in real-time as the sensored prosthetic component is repositioned wherein the inertial sensor is configured to measure the movement from the reference position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of changing a contact point of a joint in the muscular-skeletal system using quantitative measurements comprising the steps of:
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placing a sensored prosthetic component in a joint wherein the sensored prosthetic component is coupled to a bone, wherein the sensored prosthetic component houses electronic circuitry coupled to a plurality of load sensors, a power source, and an inertial sensor, wherein the plurality of load sensors couple to a surface of the sensored prosthetic component, and wherein the sensored prosthetic component is configured to be placed in a reference position in relation to the bone; transmitting measurement data from the sensored prosthetic component to a processor wherein the measurement data is stored in memory coupled to the processor; displaying a surface of the sensored prosthetic component on a display coupled to the processor where the processor calculates a contact point of applied load to the surface from the measurement data and wherein a rotation value is displayed corresponding to the reference position; rotating the sensored prosthetic component in relation to the bone; displaying movement of the contact point on the display as the sensored prosthetic component is rotated; measuring the rotation value with the inertial sensor; and displaying the rotation value in relation to the reference position on the display. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for adjusting a contact point of a muscular-skeletal joint comprising:
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a tibial prosthetic component configured to rotate after being coupled to a tibia; an insert configured to couple to the tibial prosthetic component wherein a plurality of load sensor couple to a surface of the insert, wherein the insert includes electronic circuitry coupled to the load plurality of sensors, an inertial sensor, and a power source, wherein the electronic circuitry is configured to control a measurement process and transmit measurement data and wherein a reference position is established between the tibial prosthetic component or insert to the tibia; a processor configured to receive measurement data from the insert; and a display coupled to the processor wherein the display is configured to display the surface of the insert, wherein the display is configured to display a contact point corresponding to an applied load to the surface, wherein movement of the contact point due to rotation of the tibial prosthetic component is displayed in real-time, wherein the inertial sensor is configured to measure a rotation value of the tibial prosthetic component, and wherein the rotation value is displayed on the display. - View Dependent Claims (20)
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Specification