Tool holder for ultrasonic endodontic apparatus
US4682949A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1985 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | Jul 12, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C1/07
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tool holder preferably for an ultrasonic endodontic apparatus includes an eccentric member in the holder to secure the butt end of a tool thereon by a camming action during limited rotation of a cam member. The tool holder also includes an irrigating fluid passage located proximate to, but remote from, a tool-receiving bore in the tool holder to direct irrigating fluid onto the tool. An eccentric cam is mounted in a cross-bore within the tool holder, located relative to a tool-receiving bore having a predetermined longitudinal depth, so that a camming action of the eccentric cam longitudinally seats the tool deep in the bore while securing it there by the cam upon limited rotational motion of the cam. The cam includes tool pads for receiving mating surfaces of a bifurcated wrench.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.