Modular ball head remover

Details Modular ball head remover Modular ball head remover

1991-07-31

1993-11-23

Reynolds, Bruce A.

Electric heating

Heating devices

Tool or instrument

219221, 219230, 606100, H05B 302, A61B 1700

Patent

active

052646807

ABSTRACT:
An apparatus and method for removing a modular ball head from a prosthesis stem by heat expanding the modular ball head and subjecting it to an impact force in a direction such that it is removed from the prosthesis stem. A housing receives the modular ball head therein while the prosthesis stem is still within a patient's femur. A heater within the housing heats the modular ball head. An impact hammer comprised of a mass slideably mounted on a rod is attached to the housing and has an anvil stop at one end. The housing is thermally insulated to retain heat while protecting an operator and the patient from burns. The heat generated is controlled as to amount and duration.

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patent: 5037442 (1991-08-01), Wintermantel

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