Surgery – Instruments – Orthopedic instrumentation
Patent
1990-07-06
1993-01-19
Brown, Michael A.
Surgery
Instruments
Orthopedic instrumentation
606 56, 606 58, 606 59, A61B 1756
Patent
active
051803801
ABSTRACT:
An orthopaedic system is provided which includes a plurality of support members, a plurality of rods interconnecting the support members, a plurality of pins attached to the support members for passing through bone of a patient, and an automatic drive device to control an adjustment mechanism of the rods to adjust the rod length of the rods to alter the relative positions of the support members. The drive device includes at least one motor for incrementally adjusting the adjustment mechanism of at least one of the rods and a controller device for providing pulses to the motor and for storing information regarding the number of stepwise adjustments of the rod length by the motor.
REFERENCES:
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Operative Beinverlangerungmiteinem Vollinplantierbaren Distraktionsgerat by J. J. Hildebrandt, M. Jager and A. N. Witt.
"Continuous Femur Lengthening with Intramedullary Stabilization", J. Gotz and W. D. Schellman, Arch. of Orthop. and Traumat. Surg. 82, 305-310 (1975), (English translation provided).
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Holloway Jordan M.
Pursley John A.
Wakefield Thomas L.
Autogenesis Corporation
Brown Michael A.
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