Dental treatment apparatus and method of driving the same
US11801118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2018 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Jun 28, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental treatment apparatus includes a handpiece holding a cutting tool in its head, a drive portion driving the cutting tool held by the head, and a control portion controlling the drive portion in accordance with a drive sequence. The drive sequence includes at least one forward rotation drive for rotating the cutting tool in a cutting direction to cut a treatment portion and at least one reverse rotation drive for rotating the cutting tool in a non-cutting direction. Under the control of the drive portion in accordance with the drive sequence, a cumulative amount of rotation which is an accumulation of an amount of rotation in forward rotation drive and an amount of rotation in reverse rotation drive does not exceed a set value at any time point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.