Bone screw and self-retaining driver
US10292744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2016 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Sep 10, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/0042
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Techniques disclosed herein include systems and methods for a bone screw and self-retaining driver. The system includes a mechanism that enables a bone screw to be rigidly attached to a screwdriver for manipulation and transfer of bone fragments and grafts to a fixation site, such as during surgery. The system includes a cannulated bone screw that has a drive connection that engages with a drive structures of a screwdriver. The bone screw also includes a structural connector that securely attaches to or receives an internal shaft or rod of the screwdriver. The internal shaft or rod of the screwdriver can rotate and slide independent of an outer shaft of screwdriver. Accordingly, the internal shaft of the screwdriver can rigidly connect with the bone screw enabling applied torque to the screwdriver to be transferred to the bone screw, without the bone screw falling off of the drive connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.