Connecting devices
US4746293A · kind A · utility
Inventors
Key dates
| Filing date | Sep 16, 1986 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Sep 16, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C8/0059
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A connecting device is included in oral and extra-oral prostheses of the type which is partially implanted in bodily tissue, primarily bone tissue, by means of a specifically designed anchorage unit (a fixture). The connecting device provides more favorable stress and force distribution between the implanted and the outer portion of the prosthesis located peritissually. The connecting device includes an outer, cylindrical sleeve-shaped patrix (6) for connection to the outer prosthesis portion, for example by casting, and is designed to surround a central spacer screw (3) of a spacer (1) connected to the anchorage unit. The device connects through lower base (11), to a collar-shaped portion (4, 5) of the spacer (1) by the intermediary of a resilient member (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.