Endodontic instrument
US6174165A · kind A · utility
10Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1999 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Aug 11, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Present invention relates to an endodontic instrument comprising a shaft and a work portion connecting to the shaft. The work portion has a plurality of helically extending blades to form a rectangular cross section in which the opposite edges of one set are longer edges and the opposite edges of the other set are shorter edges, the work portion having each apex of a right angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.