Surgically implantable fastening system
US6004323A · kind A · utility
140Cited by
20References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1997 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Feb 4, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S606/91
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention discloses a nut to be used in a spinal screw and plate assembly to affix the screw and plate assembly to the spinal bone. The nut has a polymer insert that when contacted with a screw allows a bone plate and screw structure to relax over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.