Modular scoring trial for anterior cervical cage
US10888434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2018 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0069
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disc preparation instrument for use in fusing spinal vertebrae comprises a modular scoring trial and a depth stop releasably attached to the scoring trial. The trial includes an elongate stem supporting a trial device at its distal tip. The trial device is insertable into a disc space and includes a rotatable rasp for scoring opposing vertebral endplates at a scored location. A stop, sized to engage an exterior surface of the vertebrae, is movable on the depth stop stem by rotation of an adjustment knob to a plurality of selectable distances between the proximal end of the trial device and the movable stop. An actuator releasably attached to the trial is operable to rotate the rasp. A plurality of modular trials, each having a trial device of different heights may be provided in a kit. Each scoring trial is selectively releasably attachable to a single depth stop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.