Title:
SYSTEM AND METHODS FOR REDUCING INTERFACIAL POROSITY IN CEMENTS
Document Type and Number:
WIPO Patent Application WO2002074195
Kind Code:
A3
Abstract:
The present invention provides a system and a method for reducing pores, or air pockets, that form at the interface between the material used to attach or adhere the surface of a component, such as a prosthesis, to a site. A preferred embodiment of the invention includes an actuator that controls a coupler which transmits energy to a prosthesis being inserted into a material to reduce porosity at an interface between the prosthesis and the material. The system of the present invention can include an oscillating hand-held device that vibrates the stem component of an orthopedic prosthesis at a particular frequency and amplitude. The device is typically held by the hand of the surgeon, who guides the vibrating prosthesis into the cement-filled medullary cavity.
Inventors:
SPIEGELBERG STEPHEN H (US)
RUBERTI JEFFREY W (US)
BRAITHWAITE GAVIN J C (US)
RUBERTI JEFFREY W (US)
BRAITHWAITE GAVIN J C (US)
Application Number:
PCT/US2002/008466
Publication Date:
July 24, 2003
Filing Date:
March 19, 2002
Export Citation:
Assignee:
CAMBRIDGE POLYMER GROUP INC (US)
SPIEGELBERG STEPHEN H (US)
RUBERTI JEFFREY W (US)
BRAITHWAITE GAVIN J C (US)
SPIEGELBERG STEPHEN H (US)
RUBERTI JEFFREY W (US)
BRAITHWAITE GAVIN J C (US)
International Classes:
A61F2/30; A61F2/46; A61F2/00; A61F2/32; A61F2/34; A61F2/36; A61F2/38; A61N7/00; (IPC1-7): A61F2/46
Domestic Patent References:
| WO1990004953A1 | 1990-05-17 |
Foreign References:
| GB2277448A | 1994-11-02 | |||
| US5045054A | 1991-09-03 |
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