Dental device with load-responsive motor control
US11857384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2020 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Nov 2, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A motor-driven dental device has a motor control that is responsive to a load placed upon the motor. More specifically, the invention relates to a dental device having motor that drives a tool, wherein the tool is activated or otherwise controlled in response to a load placed upon the motor through the tool, such as by touching the tool to a surface. The tool may also be controlled by the sustenance, over a predetermined time period, of an increase or decrease in motor current beyond a predetermined hysteresis current threshold. The motor may be an electric motor, a rotary electric motor, and air driven motor, an ultrasonic device or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.