Surgery – Truss – Pad
Patent
1981-08-14
1984-03-13
Howell, Kyle L.
Surgery
Truss
Pad
128774, A61B 510
Patent
active
044360991
ABSTRACT:
The present invention relates to an instrument for measuring the range of angular displacement associated with two human body portions connected to a common joint. The instrument includes two pivotally connected, elongate rods, and separate supports for supporting each of the rods on a respective one of the body portions in spaced relationship with the body portion. Each of the supports includes a pair of ball and socket assemblies which are mounted on the respective body portions in spaced relation to one another. The ball of each ball and socket assembly has an aperture formed therethrough for receiving the associated elongate rod. Such a support arrangement enables the body portions to be rotated about the common joint without affecting the natural movements of the body portions. An encoder is utilized to pivotally connect the two elongate rods and to generate an electrical output signal representing the relative angular position between the two rods. A counter and display circuit is responsive to the encoder output signal for determining the change in angular position between the two rods and displaying this value in terms of angular degrees.
REFERENCES:
patent: 1590499 (1926-06-01), Cozad
patent: 3020639 (1962-02-01), Karpovich et al.
patent: 4034745 (1977-07-01), Bloom
patent: 4306571 (1981-12-01), McLeod, Jr.
patent: 4318225 (1982-03-01), Jenkinson
Townsend, M. A. et al., "Total Motion Knee Goniometry", J. Biomechanics, vol. 10, No. 3, (1977), pp. 183-193.
Chao, E. Y. S., et al., "Instrumented Measurement of Human Joint Motion", ISA Transactions, vol. 17, No. 1, (1978), pp. 13-19.
Kettlekamp, D. B. et al., "An Electrogoniometric Study of Knee Motion in Normal Gait, " Journ. of Bone & Joint Surg., vol. 52-A, No. 4, Jun. 1970, pp. 775-790.
Chao, E. Y., An, K. N., Askew, L. J., Morrey, B. F., "Electrogoniometer for the Measurement of Human Elbow Joint Rotation," Journal of Biomechanical Engineering, vol. 102, No. 4, (Nov. 1980), pp. 301-310.
Fukushima Christine A.
Howell Kyle L.
The University of Toledo
LandOfFree
Instrument for measuring the range of motion associated with a h does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Instrument for measuring the range of motion associated with a h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instrument for measuring the range of motion associated with a h will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-487131