Dental retractor
US10772493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Apr 4, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/32
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To accurately acquire an image of an inside of an oral cavity of a person to be treated, there is provided a dental retractor including a retracting base portion that includes an inner retracting portion extending in an arch-shaped profile to surround an inner portion of gum at any one side of an upper jaw and a lower jaw inside an oral cavity and having a pressing holding portion formed at an outer peripheral surface so that a tongue is accommodated therein and an outer retracting portion integrally extending from both ends of the inner retracting portion and extending in an arch-shaped profile to surround an outer portion of the gum, and a handle portion including a grip portion connected outward from the retracting base portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.