Device and method for measuring the skeletal dental relationships
US8209876B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2010 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Oct 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for measuring the skeletodental relationship of a human skull directly from a cephalometric radiograph or from a hand tracing of the craniofacial structures includes a flat transparent plate-like structure. The plate-like structure has a generally rectangular shape with a zero point and two protractors spaced one below the other and superimposed on a zero point. The protractors include radial lines from 0° to 90° for a first of the protractors and from 90° to 0° for a second of the protractors. Further, the 0° line in the first protractor is parallel with the 90° line in the second protractor. The 0° line in the second is parallel with the 90° line in the first. Further, three vertical scales are provided on the right hand edge and top of the device with two of the scales on the right hand edge, but ascending in different directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.