Battery powered condenser for root canals
US4992045A · kind A · utility
53Cited by
20References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1988 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Oct 28, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/014
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A self contained heated root canal dental instrument which combines the operations of a root canal spreader, a root canal condenser and a root canal filling material heater is provided. The instrument has batteries in its handle for use as a power source for heating root canal filling material and employs a non-corrosive dental tool that has a resistive element in its tip to provide the heating when electricity from the batteries is conducted through the tip. A method for making the dental tool is provided which comprises threading a resistive element through a cannula which is used as a dental tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.