Geometrical instruments – Gauge – Anatomical
Patent
1993-12-08
1994-08-23
Cuchlinski, Jr., William
Geometrical instruments
Gauge
Anatomical
128782, A61B 5103
Patent
active
053395336
ABSTRACT:
A bone-stiffness measuring instrument comprises a set or kit of readily assembled and adjusted components, namely a goniometer, a light-weight load cell, and a small computer package, adapted to continuously respond to the outputs of the load cell and goniometer and to display and/or record (i.e., store) measured stiffness data; plus hardware in duplicate, namely, a bone-screw clamp and bracket for fixed reference to bone-screws that are externally exposed on each of the respective sides of the fracture (following removal of an external fixator), a stiff arcuate arm member of radius at least twice the diameter of the fractured bone, and a goniometer-end mount. The arcuate arm member is adjustably fixed to the bracket for bone-screw reference, and the goniometer-end mount is also adjustably fixed to the arcuate arm member, with a releasably lockable ball-joint connection for adjusted orientation of an end mounting to the goniometer.
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James et al., "A Clinical Electrogoniometry System," Engineering In Medicine, vol. 11, No. 3, 1982, pp. 123-124.
Bennett G. Bradley
Cuchlinski, Jr. William
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