Removably fixing a dental instrument with a retractable catch relative to a drive shaft axis
US8075311B2 · kind B2 · utility
3Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2006 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Apr 9, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/17811
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A head assembly for attaching to a dental instrument has a body, a rotary shaft with a pinion thereon, at least one retractable catch latching lever and a retractable catch. The rotary shaft has a central bore suitable for receiving a shank of the dental instrument therein. The latching lever has a peg engageable with an annular latching groove of the shank of the dental instrument. The catch has a positioning plane coinciding with the drive flat of the instrument. The body has a circular opening closed off by a push button cooperative with the rotary shaft so as to release the shank of the dental instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.