Shape memory self-ligating orthodontic brackets
US7175428B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 2, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Dec 28, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C2201/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Self-ligating orthodontic brackets which are at least partially formed of materials exhibiting shape memory each of which includes a base from which extends two spaced and opposing pairs of tie wings each pair of which define an archwire guide slot therebetween. Each of the opposing tie wings include portions which are normally spaced to retain an archwire within the archwire guide slot but at least a portion of one of each pair of opposing tie wings is yieldable relative to the other to permit insertion and/or removal of the archwire relative to the archwire guide slot. Portions of the brackets may be coated to reduce friction between the archwire guide slot and the archwire and to promote aesthetics and overall bracket appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.