Orthodontic palatal arch wires for accurate transmittal of correctional forces
US4408989A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1982 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Feb 5, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orthodontal palatal arch wire is provided for directional control over a pair of brackets; each bracket being mounted on an opposing molar in a patient's mouth. A resiliently flexible wire with a device intermediate its length for producing corrective forces has a torquing band transversely mounted thereon. The torquing band is securable by an elastic device to a receiving unit mounted on the lingual side of each bracket, so as to bear both forward and laterally against the receiving unit for transmitting correctional forces therebetween. A bracket is provided having a receiving unit with planar surfaces capable of bearing flushly against a torquing band having planar forward and lateral bearing surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.