Low wear artificial spinal disc
US5676701A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00449
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An artificial spinal disc for surgical placement between adjacent vertebrae including a first component for attaching to a first vertebrae, the first component having a concave recess, with the concave contoured surface having a circumference of 360.degree.. A second component for attaching to a second vertebrae, the second component including a projection with a convex surface, the convex contoured surface having a circumference of 360.degree.. The corresponding contoured surfaces shaped to allow an unrestricted rotational and a flexion/extension bending motion between the first and second components relative to a patient's normal spinal axis when in a standing position with the spine in a straightened position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.