Endodontic dental instrument
US5713736A · kind A · utility
35Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1996 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | May 1, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/9097
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endodontic instrument which comprises an elongate shank which has a tapered working length adjacent the pilot end, and at least two continuous helical flutes formed along the tapered working length. The flutes are non-uniformly separated in the axial direction, and they define a relatively broad helical land and at least one relatively narrow helical surface. In one embodiment, the helical surface is a relatively narrow helical land and in another embodiment, the helical surface is a sharp helical edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.