Surgery – Instruments – Orthopedic instrumentation
Patent
1993-02-18
1994-09-27
Graysay, Tamara L.
Surgery
Instruments
Orthopedic instrumentation
A61B 1756
Patent
active
053503791
ABSTRACT:
A device for lengthening bone in an human or animal by incrementally extending the distance between discrete separated portions of the bone to permit continued bone growth between the separated portions comprising an intramedullary nail having distal and proximal portions both of which are secured with the medullar canal of the bone. A hydraulic cylinder comprises the proximal portion of the nail and a piston comprises the distal portion of the nail. An implantable supply of operating fluid communicates with the cylinder. A ratcheting mechanism, between the piston and cylinder, limits their relative movement. A shock absorber mechanism permits limited lost motion between the piston and cylinder and ratcheting release mechanisms are employed to permit the piston and cylinder to reverse directions.
REFERENCES:
patent: 3976060 (1976-08-01), Hildebrandt et al.
patent: 3977398 (1976-08-01), Burstein
patent: 3986504 (1976-10-01), Avila
patent: 4091806 (1978-05-01), Aginsky
patent: 4157715 (1979-06-01), Westerhoff
patent: 4190044 (1980-02-01), Wood
patent: 4204531 (1980-05-01), Aginsky
patent: 4453539 (1984-06-01), Raftopoulos et al.
patent: 4522200 (1985-06-01), Stednitz
patent: 4615338 (1986-10-01), Ilizarov et al.
patent: 4854312 (1989-08-01), Raftopoulos et al.
patent: 4875474 (1989-10-01), Border
patent: 4940467 (1990-07-01), Tronzo
patent: 4946459 (1990-08-01), Bradshaw et al.
patent: 5002543 (1991-03-01), Bradshaw et al.
patent: 5014719 (1991-05-01), McLeod
patent: 5034012 (1991-07-01), Frigg
patent: 5034013 (1991-07-01), Kyle et al.
patent: 5057103 (1991-10-01), Davis
patent: 5059193 (1991-10-01), Kuslich
patent: 5071435 (1991-12-01), Fuchs et al.
patent: 5074882 (1991-12-01), Grammont et al.
patent: 5102413 (1992-04-01), Poddar
patent: 5112333 (1992-05-01), Fixel
patent: 5116335 (1992-05-01), Hannon et al.
patent: 5122141 (1992-06-01), Simpson et al.
patent: 5156605 (1992-10-01), Pursley et al.
patent: 5236460 (1993-08-01), Barber
J. Gotz and W. D. Schellmann, "Continuous Lengthening of the Femur by Intramedullary Stabilization", Archiv orthopadische Unfall-Chirugie 82:305-130 91975), copyright by J. F. Bergmann Publishing, Munich 1975. (In English and German).
Genesis Orthopedics
Graysay Tamara L.
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