Medical or dental laser instrument, especially for dental root canal treatments
US5897314A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1997 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Aug 27, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C1/0046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a medical or dental laser instrument (1), especially for tooth root canal treatments, having a preferably rod-shaped hand piece (2), a connection part (3) by means of which the hand piece (2) can be connected to a supply line (4), a first light guide (5) that extends longitudinally through the supply line (4) and the connection part (3) to the hand piece (2), a second light guide (7) arranged in the front end region of the laser instrument, the rear end of the second light guide (7) being arranged coaxially with respect to the front end of the first light guide (5), and a coupling device (8) for coupling the laser light bundle leaving the first light guide (5) to the second light guide (7), the said second light guide (7) has a larger numerical aperture than the first light guide (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.