Surgery – Instruments – Orthopedic instrumentation
Patent
1993-04-30
1994-06-14
Graysay, Tamara L.
Surgery
Instruments
Orthopedic instrumentation
606 59, A61B 1760, A61F 504
Patent
active
053206223
ABSTRACT:
A dynamic external axial splint for use in rehabilitating a fractured bone comprises a pair of spaced clamps for bone screws or bolts anchored to the respective fragments of the fractured bone. A central body releasably and universally connects and locks these spaced clamps via ball-joints having provision for selective retention of a wide variety of angular relations, between the central body and the central axis of each of the spaced clamps. The central body comprises first and second end members and a third or intermediate member, affording on the one hand, longitudinally and adjustably fixed lap of one end member with the intermediate member, and also affording limited resiliently snubbed and axially guided displaceability as between the intermediate member and the other end member, thus rendering the two end members and the respective bone-fragment anchorages clamped to the end members subject to the same axially guided and resiliently snubbed action. The axially displaceable and resilient snubbed action is selectively neutralized by a single clamp adjustment which converts the dynamic external splint into a fixed external splint or fixator.
REFERENCES:
patent: 2333033 (1943-10-01), Mraz
patent: 5026372 (1991-06-01), Sturtzkopf et al.
Faccioli Giovanni
Venturini Daniele
Graysay Tamara L.
Orthofix S.r.l.
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