Apparatus for removal of plastics cement

Details Apparatus for removal of plastics cement Apparatus for removal of plastics cement

1997-06-26

1999-04-06

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 27, 606 84, 606 92, 606169, A61B 1700

Patent

active

058911499

ABSTRACT:
The apparatus for removal of bone-cement comprises means to generate an ultrasonic signal and a tool element including an elongate stem (1) to transmit the signal to a distal end:. A plurality of spoke members (3), preferably four or eight, extend radially from adjacent the distal end to connect with an annular member (2) surrounding and spaced from the distal end. A plurality of openings (4) are each defined by the stem (1), the annular member (2) and two of the spokes (3). The annular member (2) is provided with a distally facing cutting edge. The spokes (3) are so configured as to transmit to and allow axial movement of the annular member (2) with respect to the stem (1), with an enhanced displacement relative to that of the stem (1).

REFERENCES:
patent: 5536266 (1996-07-01), Young et al.

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