Method and apparatus for correcting spinal deformity
US6551320B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Jul 5, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00023
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus (10) for correcting spinal deformity comprises at least one anchor (20) for implantation into a vertebral body (90). The anchor (20) includes a platform (24) having a first surface (38) for facing the vertebral body (90). The anchor (20) further includes screw means (50 and 52) for embedding into the vertebral body (90) upon rotation of the platform (24). The platform (24) includes at least one passage (44) extending transversely through the platform. The passage (44) receives a cable (120) connected with another anchor (20) in another vertebral body (92). The cable (120) is tensioned to cause relative movement between the vertebral bodies (90 and 92) and thereby correct the spinal deformity. Additional cables (150, 170) may be connected to the anchors (20) and tensioned to achieve correction in multiple planes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.