Spinal coupler seater with dual jaws and an independent plunger

Details Spinal coupler seater with dual jaws and an independent plunger Spinal coupler seater with dual jaws and an independent plunger

1993-06-01

1994-11-15

Pellegrino, Stephen C.

Surgery

Instruments

Orthopedic instrumentation

606 1, 81300, A61B 1900

Patent

active

053643976

ABSTRACT:
An instrument and method for locating and attaching a spinal coupler to an implanted spinal rod including body and lever handles that attach about the spinal rod. A cam handle is connected to the body handle to actuate a plunger that applies a compression force to the spinal coupler to attach it to the spinal rod by an interference fit. The body and lever handles each include a forked jaw having legs that attach to the spinal rod on each side of the spinal coupler. In one embodiment, the plunger includes a control knob to vary the instrument actuating force and prevent over extension of the plunger.

REFERENCES:
patent: 3175556 (1965-03-01), Wood et al.
patent: 4347845 (1982-09-01), Mayfield
patent: 4409968 (1983-10-01), Drummond
patent: 4572179 (1986-02-01), Teitelbaum et al.
patent: 5022292 (1991-06-01), Hammer et al.
patent: 5242445 (1993-09-01), Ashman

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