Implantable bone lengthening apparatus using a drive gear mechan

Surgery – Instruments – Orthopedic instrumentation

Patent

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Details

606 63, 606 86, 606105, 606 57, 606 58, A61B 1756

Patent

active

057049386

ABSTRACT:
A bone lengthening mechanism is placed into a bone which is then lengthened by extending the mechanism. The mechanism is extended by effecting a rotational movement in a drive bolt which mates with a threaded portion in a section of the mechanism. The threads convert the rotational movement to a longitudinal force thereby lengthening the bone.

REFERENCES:
patent: 4946459 (1990-08-01), Bradshaw et al.
patent: 5074882 (1991-12-01), Grammont et al.
patent: 5350379 (1994-09-01), Spievack
patent: 5387239 (1995-02-01), Bianco et al.
patent: 5415660 (1995-05-01), Campbell et al.
patent: 5505733 (1996-04-01), Justin et al.

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