Stabilizing bone using spinal fixation devices and systems
US9662144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Dec 12, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/861
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In one embodiment, the present invention includes a bone fixation assembly comprising a coupling element and a bone anchor. The coupling element has an upper surface with a first diameter defining a first bore extending along a first axis, a lower surface with a second diameter defining a second bore extending along a second axis, and an internal surface area defining a seating portion adjacent to the lower surface. The bone anchor has an insertion end opposite of a head. The head may be curved for receipt within the seating portion. The first diameter of the first bore is greater than the second diameter of the second bore. Likewise, the first and second axes may intersect such that the first and second bores are in communication with one another. Related elements and systems of this assembly are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.