Hand-held instrument for dental or surgical use
US8104774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2007 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Oct 4, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/17529
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hand-held instrument, for dental or surgical use, intended to rotate a rectilinear detachable tool (13) includes a tubular sheath (1); a hollow shaft (3) rotatably mounted inside the sheath with an upstream portion (5) and a downstream portion (6) which in turn includes an upstream portion (11) partially clamped around the upstream portion (5) of the shaft and a downstream portion (12) of which the inside diameter substantially matches the outside diameter of the tool (13); a clamp (14) rigidly rotationally connected to the shaft (3) but movable along the axis thereof, which clamp is placed inside and concentric with the upstream portion (5) of the shaft; and elements for moving the clamp (14) longitudinally so that the jaws (17) thereof penetrate under the upstream portion (5) of the shaft (3) thereby gripping the tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.