Lingual bracket
US9358081B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 1, 2011 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/145
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lingual bracket has a bracket body (1) and a movable wing (2). The bracket body (1) includes a bracket seat (11) with non-skid pattern on its lower surface and a stationary wing (12) integrally and protrudingly provided onto an end of the bracket seat. A through hole (13) is arranged along the central axis of the stationary wing (12). A movable wing (2) has an arch wire hook (21) at an end and a fixed portion (22) at the other end. The fixed portion end of the movable wing passes through the through hole in the stationary wing, and a spring (3) is sleeved on the section of the movable wing passing through the through hole. One end of the spring (3) is engaged against the stationary wing (12), and the other end is retained on the fixed portion of the movable wing. The arch wire hook (21) of the movable wing (2) can hook an arch wire (4) by constant orthodontic force provided by the spring (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.