Device for connecting a longitudinal support to a pedicle screw
US6063090A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1999 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Jun 11, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7034
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a device used to connect a longitudinal support to a pedicle screw by an accommodating head having a channel to accommodate the longitudinal support, wherein it is possible to freely choose from or mix laterally open, top open or closed accommodating heads. A top open accommodating head facilitates, for example, insertion of the longitudinal support, whereas a lateral opening enables lateral corrections. The pedicle screw and the accommodating head are connected via a conical collet chuck in the accommodating head and by a spherical head on the pedicle screw. The present invention allows engagement of the pedicle screw in the accommodating head after the pedicle screw has been inserted into bone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.