Transverse connection for spinal rods
US5716355A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Apr 10, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/037
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Four versions of clamps originally slidable along two generally parallel spinal rods are swivel connected to three versions of transverse connectors located between the rods. Set screws lock the transverse connectors to the clamps. Two of the clamp versions use interfitting rotational index locking detents at the swivel connections to fix the final orientation of the transverse connector relative to the spinal rods. The other two clamp versions use locking tapers to lock the rotational index positions at the swivel connections to fix the final orientation of the transverse connector relative to the spinal rods. One clamp version uses a separate set screw to fix the clamp on the spinal rod. One transverse connector has an open clamping head for installation directly onto the spinal rod without sliding it onto the rod from one end or the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.