Multi-plane cortical bone screw, bone positioning device and positioning and use method
US11839412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2023 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Mar 13, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7032
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multi-plane cortical bone screw includes a screw tail and a ball screw. A ball head portion is arranged at one end of the ball screw, and a thread portion is arranged at the other end thereof. The ball head portion and the screw tail are in universal connection, so that the ball screw can rotate along a conical surface relative to the screw tail. A lower end face of the screw tail close to the ball head portion is relatively rotatably connected with a side face of the screw tail. The present disclosure further discloses a bone positioning device, which includes a plurality of connection rods and a plurality of the multi-plane cortical bone screws. The screw tails are arranged in a spatial three-dimensional radial manner along side edges of a multi-edge platform, and the connection rods used for positioning a bone are connected between the screw tails.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.