Bone screw threaded plug closure with central set screw
US6224598A · kind A · utility
340Cited by
21References
9Claims
0Family size
Inventor
Key dates
| Filing date | Feb 16, 2000 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Feb 16, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/037
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A threaded plug closure for an open-ended bone screw has a center bore and is threaded to receive a set screw. The set screw includes a breakaway head and a base which is slotted to permit removal following installation. The base includes an axial point and circumferential ring which engage the center portion of an associated spinal rod. The plug closure and the set screw can be independently installed and the set screw tightened to cooperatively provide capture and locking of the rod or connector in order to secure the rod or connector against translational and rotational movement relative to the bone screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.