SYSTEM AND METHOD FOR ORTHOPEDIC LOAD AND LOCATION SENSING
First Claim
1. A measurement system for measuring a parameter of the muscular-skeletal system comprising:
- a sensing platform comprising;
a contacting surface; and
at least three sensing assemblages coupled to the contacting surface at predetermined locations, where each sensing assemblage provides a voltage or current magnitude that corresponds to the parameter applied to the contacting surface, and where a location where the parameter is applied to the contacting surface is determined from the parameter measurements of the at least three sensing assemblages.
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Accused Products
Abstract
A sensing insert device (100) is disclosed for measuring a parameter of the muscular-skeletal system. The sensing insert device (100) can be temporary or permanent. The sensing module (200) is a self-contained encapsulated measurement device having at least one contacting surface that couples to the muscular-skeletal system. The sensing module (200) comprises one or more sensing assemblages, electronic circuitry (307), an antenna (2302), and communication circuitry (320). The sensing assemblages are between a top plate (1502) and a bottom plate (1504) in a sensing platform (121). The sensing assemblages measure the parameter and comprise a load disc (2004) and a piezo-resistive sensor (2002). Three sensing assemblages are coupled at predetermined positions to the top plate (1502). The sensing module (200) can measure a location where the parameter is applied to the top plate (1502).
73 Citations
20 Claims
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1. A measurement system for measuring a parameter of the muscular-skeletal system comprising:
a sensing platform comprising; a contacting surface; and at least three sensing assemblages coupled to the contacting surface at predetermined locations, where each sensing assemblage provides a voltage or current magnitude that corresponds to the parameter applied to the contacting surface, and where a location where the parameter is applied to the contacting surface is determined from the parameter measurements of the at least three sensing assemblages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- 12. A measurement system for measuring a force, pressure, or load applied by the muscular-skeletal system where a prosthetic component includes a sensing module and where the sensing module includes an elastic member to return a sensing platform to a predetermined position under quiescent conditions and where the sensing module generates a voltage or current that corresponds to the parameter applied to the sensing module.
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14. A method of measuring a parameter of a knee joint comprising the steps:
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installing a final tibial prosthetic component; installing a final femoral prosthetic component; and inserting a trial insert between the final tibial and femoral prosthetic component where the insert includes a sensing module having at least one piezo-resistive sensor for measuring the parameter and where the trial insert is substantially equal in dimensions to a final insert. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification