Self guiding surgical bone fixation screw
US9907592B2 · kind B2 · utility
2Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 2011 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Jan 27, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/863
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical bone fixation screw having a head, an end segment distally from the head and an intermediate shank having outwardly protruding screw threads. The improvement is a self guiding, threadless, elongated end segment having a smooth outer surface with no cutting edges, a length of at least 8 mm and preferably 15 mm and a bluntly rounded end with an outer contour that is smoothly blended to the shank. Most preferably, the bluntly rounded end is substantially a prolate hemispheroid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.