Self-contained root canal heated condenser dental instrument
US4392827A · kind A · utility
Inventor
Key dates
| Filing date | Nov 4, 1981 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Nov 4, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C2204/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention is an improved dental instrument for root canal condensation dental work. The instrument is self-contained in that it is a combination tool used as a spreader, a condenser, and a filling material heating unit, each of which is alternately and/or concurrently useable while inserted within the root canal structure of a patient. The invention provides several embodiments, each of which comprises: a plugger component (which use combines the functions of a spreader, a condenser, and a material heating unit); a handle component affixed to the plugger component; a power supply component for producing heat; and a transmission component for transmitting heat produced by the power supply component to the material heating unit of the plugger component. The transmission component has a conveniently located finger operation switch to interrupt the power supply and cut off the flow of heat. The plugger component is provided in a range of sizes to fit the range of internal sizes in different parts of the root canal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.