Double collet connector assembly for bone anchoring element
US7789900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2007 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Mar 7, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7032
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A connector assembly including a bone anchoring element including a spherical head, a double collet that includes an inner clamping portion formed by inner surfaces of a plurality of resilient fingers, the resilient fingers defining a first wedge surface and a second wedge surface, an outer closure element that includes an inner clamping portion that corresponds in shape to an outer contour of the double collet, the outer closure element including a pair of arms that define a channel shaped for receiving therein a connector element, and an interface ring that includes a base formed with an inner wedge surface and a pair of wing extensions that extend from the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.