Oral cavity spreading apparatus
US6500002B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jul 9, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Jul 9, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/90
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An oral cavity spreading apparatus. The apparatus includes a pair of mouth corner hooks capable of being inserted into the oral cavity to spread the corners of the mouth, wing portions protruding individually outward from the mouth corner hooks and capable of spreading the inner part of the oral cavity, and a substantially U-shaped spring arm portion connecting the mouth corner hooks. The mouth corner hooks are adapted to be pressed toward each other against the urging force of the spring arm portion so that the respective end portions of the mouth corner hooks engage each other and the wing portions are steadily rotated inward and toward each other around the point of engagement between the end portions as a pivot as the mouth corner hooks are inserted into the oral cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.