Equipment for the treatment of dental roots
US4993947A · kind A · utility
53Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1988 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Jun 23, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/40
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The connection piece (2), which can be fitted in a sealed manner on an opening in the pulp chamber of a tooth, comprises a liquid injector (24) and a discharge duct (25) which lead into the pulp chamber. A vacuum pump (5) is connected to the discharge duct (25) so as to produce bubbles in the liquid inside the tooth. A pressure pump (3) connected to a liquid reservoir conveys the said liquid to the injector (24) so as to produce, by means of impulsion of the said bubbles, a cavitation in the liquid inside the tooth, owing to the action of the pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.