O-ring attachment system for dental prosthesis
US5049072A · kind A · utility
47Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Jun 26, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C13/2656
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An o-ring attachment system with opposed convex circumferential surfaces for removable dentures to be attached to a natural or an implanted fixed root system. The o-ring attachment system can be screwed into an implanted root using a manipulating means interposed between o-ring abutment and an attachment screw. In connection therewith, a tool is provided for implanting the o-ring attachment system, the tool having a captured toroidal spring for gripping the attachment system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.