Tissue dilation system and methods of use
US10925592B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2017 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Oct 3, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/885
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein are systems and methods for dilating tissue for placement of a pedicle screw without the use of guide wires. The tissue dilation system includes, generally, a stylet and trocar which are used for the initial placement of the tissue dilation system. A second dilator is passed over the first. A second dilator is passed over the first dilator, and further includes a serrated edge for engaging with a target surface. The second dilator may be secured to the target surface by the serrated edge alone, or may additional be secured using one or more temporary fixation pins, which operably couple to the second dilator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.