Modular spinal fixation screw
US12213704B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2024 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Jun 18, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8685
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A modular spinal fixation screw capable of rapid linear engagement of a bone screw and a rod member. The fixation screw is coupled to a connector formed from a clamp and a collet. The collet incorporates the use of a T-shaped living hinge which facilitates both attachment of the connector to a bone screw and lessens the resistance of the collet for locking to the bone screw and rod member. The collet further includes scallops that facilitates the insertion of the spherical end of the bone screw into the collet. The clamp can be moved from a first unlocked position used for installation to a locked position securing the rod member to a pedicle bone. The clamp compresses the collet which holds the hold rod member to the bone screws in a pre-selected position by linear movement of the clamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.