Bone screw for anchoring a marrow nail
US6355043B1 · kind B1 · utility
197Cited by
16References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Dec 29, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/72
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A Bone screw for anchoring a marrow nail with transverse bores in a tubular bone. The bone screw had a thread with a pitch S, a core diameter D1 and outer diameter D3. The screw supports the marrow nail with a middle part and is fixed in the bone with a distal part. The thread has a flat cylindrical thread base with a length l>0.3 S. In addition, a second thread with the same pitch S and with the core diameter D1 is present in a proximal head part, but has a greater outer diameter D2>D3 in order to proximally achieve a fixing with a greater thread profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.