Modular neck for femur replacement surgery
US6464728B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 17, 2000 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Feb 17, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00796
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthesis for femur replacement surgery has a stem which is received in the femur. The stem has a blind bore formed at an angle in the upper portion. A modular neck assembly is received in the blind bore. The neck assembly is formed at a desired angle with respect to the vertical axis of the stem. The neck assembly is keyed to the bore to obtain a desired degree of anteversion and offset by a desired rotation of the neck assembly within the bore. A unitary sleeve may be inserted in a canal in the femur to receive the stem and provide circumferential movement of the prosthesis within the femur canal. A porous coating is formed on the outer surface of the stem and the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.