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Computerized-biomechanical-analysis-system

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Computerized biomechanical analysis system

Details

Inventors: Meier, Robert H.; Seel, Jerry E.; Gray, Gary W.;
Assignee: Camp International, Inc. (Jackson, MI)
Primary Examiner: Bahr; Robert
Assistant Examiner: Reichard; Lynne A.
Attorney, Agent or Firm: Beaman & Beaman

The invention pertains to a method and apparatus for biomechanically analyzing the physical characteristics of the lower extremety including hip, knee and ankle joints and the muscles and ligaments, and the functioning thereof. A frame includes a weight sensing platform and a foot support in the form of a disc is mounted above the platform for nutation about a vertical axis. The periphery of the disc engages the platform, and actuates platform switches whereby a patient standing upon the disc with one foot may angularly displace the disc in a nutating manner applying weight to the platform through the disc periphery, and recording apparatus in the form of computerized data and a visual display permits analysis of the application of weight to the platform. The disc may be selectively vertically adjustable relative to the platform to vary the analysis characteristics.

DETAILED DESCRIPTION We claim: 1.
A method of biomechanically analyzing the physical characteristics of a lower limb comprising the steps of: (a) placing the foot upon a support capable of universal deviation about a vertical axis, (b) sequentially applying weight upon said support at different angular locations with respect to said axis, (c) sensing the extent of said weight as applied at said angular locations to produce a plurality of weight/location values with respect to said axis, and (d) recording said values to permit analysis of the distribution of weight relative to said axis.
2.
The method of biomechanical analysis as in claim 1 wherein: (a) the step of placing the foot upon the support comprising locating the foot on the support such that the lower leg is substantially coaxially aligned with said vertical axis.
3.
The method of biomechanical analysis as in claim 1 wherein: (a) the step of sequentially applying weight upon said support comprises sequentially applying weight in a continuous unidirectional manner about said vertical axis.
4.
The method of biomechanical analysis as in claim 1 wherein: (a) the step of sensing the extent of said weight comprises producing an electrical signal, and (b) the step of recording said values comprises electronically analyzing and recording said electrical signals.
5.
The method of biomechanical analysis as in claim 4, including the steps of: (a) producing a visual display of said electrical signals.
6.
A method of biomechanically analyzing the physical characteristics of a lower limb utilizing a support having a center of nutation comprising the steps of: (a) placing the foot upon the support in a predetermined position relative to the center of nutation, (b) sequentially applying weight upon said support at different angular locations with respect to said center of nutation, (c) sensing the extent of said weight as applied at said angular locations to produce a plurality of weight/location values with respect to said center of nutation, and (d) recording said values to permit analysis of the distribution of weight relative to said center of nutation

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