Debonding instrument for orthodontic brackets
US4950157A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1988 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Nov 14, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/023
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An adjustable orthodontic debonding instrument has jaws that may be opened to place jaw tips over mesial and distal sides of the bracket, and then closed to enhance the grip of the jaws on the bracket sides. An actuator is moveable along the length of a handle of the instrument, and cooperates with a lever arm fixed to the moveable jaw to facilitate precise movement of the latter and enhance the grip of the jaws on the bracket when the jaws are closed. A slight, quick pivotal movement of the instrument handle by the user presents a torsional force to the bracket base which is particularly advantageous when debonding ceramic orthodontic brackets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.