Plastic implant with channel for radiographic contrast wire
US6764512B2 · kind B2 · utility
102Cited by
29References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Mar 29, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00011
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A plastic implant having a sliding core, such as an intervertebral endoprosthesis, is formed with a peripheral, preferably circumferential, channel that is configured to receive a radiographic contrast wire. The channel may be partially or fully closed to an outside portion of the sliding core and may include a restriction in the profile of the channel that acts to partially close the channel to the outside portion of the sliding core. The restriction may have a width that is less than the diameter of the radiographic contrast wire. The channel may also include an insertion opening adapted to accept the wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.