Method for removal of osteal prostheses

Details Method for removal of osteal prostheses Method for removal of osteal prostheses

1994-03-23

1996-07-16

Graysay, Tamara L.

Surgery

Instruments

Orthopedic instrumentation

A61B 1792

Patent

active

055362729

ABSTRACT:
A relatively massive annular body is driven in radial-mode resonant oscillation by an ultrasonic driver that is fixed to the periphery of the annular body, with the axis of its ultrasonic drive oriented for intersection with the central axis of the annular body. A selected chucking device within the bore of the annular body is adapted to engage part of a prosthetic device, to which the resonant oscillation is imparted, for melting bone cement and for severing bony ingrowth into the prosthetic, thus permitting immediate retraction of the prosthetic from its pre-existing implantation in a living bone.

REFERENCES:
patent: 4248232 (1981-02-01), Engelbrecht et al.
patent: 5045054 (1991-09-01), Hood et al.
patent: 5151099 (1992-09-01), Young et al.
patent: 5167619 (1992-12-01), Wuchinich
patent: 5324297 (1994-06-01), Hood et al.
Young, et al. paper, "The design of high intensity radial vibrators for metal working applications", J. Phys. D: Appl. Phys., 1971, vol. 4, pp. 212 to 216.

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