System for surgical treatment of the spine
US12089857B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2020 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Apr 18, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical treatment system comprises a drill bit extending along a proximo-distal drill bit axis suitable for drilling a hole in the pedicle of a vertebra when the bit is rotated. The bit includes, successively along the drill bit axis, a distal end, a cylindrical drill centred on the drill bit axis for drilling the hole by cutting into and removing bone material from the pedicle to give a distal end portion of the hole a cylindrical shape, and a milling cutter for cutting bone material from the pedicle of the vertebra to give a proximal end portion of the hole a funnel shape gradually widening from the distal end portion of the hole. A pedicle screw extends along a proximo-distal screw axis and is designed to be screwed into the hole by being rotated after the drill bit has drilled the hole and has been removed from this hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.