External fixator with controllable damping

Details External fixator with controllable damping External fixator with controllable damping

1991-04-23

1993-05-04

Pellegrino, Stephen C.

Surgery

Instruments

Orthopedic instrumentation

606 57, A61F 504

Patent

active

052076768

ABSTRACT:
This external fixator for the correction and reduction of bone fragments comprises a bar (1) fastened to a biocompression system (5), on which bar and system are disposed the supports (2,3) for fastening the pins inserted into the bones, the components of which supports are movable in accordance with the arrows A, B, C and D. The member (6) permits the longitudinal displacement of the clip (2) in the direction of the arrow E, while the biocompression system (5) makes a reciprocating movement in accordance with the arrow F.
A damping member (90,290) cooperates with means for regulating the force applied which are disposed outside the bar. Graduated markings (99,283) indicate the value of the force applied.

REFERENCES:
patent: 4312336 (1982-01-01), Danieletto et al.
patent: 4488542 (1984-12-01), Helland
patent: 4502473 (1985-03-01), Harris et al.
patent: 4570625 (1986-02-01), Harris et al.
patent: 4621627 (1986-11-01), DeBastiani et al.
patent: 4848368 (1989-07-01), Kronner

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