Bone plate with complex, adjacent holes joined by a relief-space
US8252032B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2007 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Sep 16, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2050/3008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone plate is described which is adapted for use in situ to fix a spatial relationship of at least two bone parts. The bone plate has at least one pair of the bone screw apertures that are adjoined by a relief-space contiguous with the open space of the screw apertures themselves. An adjoined aperture pair forms a complex aperture and has a center-to-center distance of the apertures along an axis running through the centers of the apertures. The center-to-center distance is equal to or greater than the sum of the radii of the heads of the individual bone screw used with the aperture pair. At least one of the screw apertures has a screw head seat having at least one relief notch set into a surface of the screw head seat. The relief notch provides desirable advantages that are not similarly accomplished in their absence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.