Angled offset tulip assembly
US9820780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00526
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An angled offset tulip has an angled offset tulip with a rod receiving portion and a bone screw receiving portion. The bone screw receiving portion has a distal opening on a distal end. The rod receiving portion is positioned offset a distance from a center of the distal opening and elevated above the distal opening to form an angle θ. The angle θ is defined as a line passing through the center of the distal opening and a slotted end center. The rod receiving portion has a slotted opening defined by a pair of sides, each side having a proximal end with threads for engaging a set screw to secure a rod. The angled offset tulip can be an angled offset tulip assembly having a collet for receiving, holding and fixing the head of a bone screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.