Locking plate and bone screw
US5601553A · kind A · utility
976Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1994 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Oct 3, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone plate for stabilizing the anterior column of the spine has a lower curved surface and an upper surface having two intersecting planes in each of which is a screw hole, the axes of the holes being skewed relative to one another. A bone screw used to secure the plate, has a single start buttress thread near the tip and a two start machine thread near the head, the threads being continuous and of constant pitch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.