Connector between an implant and an abutment
US5947733A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 1997 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | May 16, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C8/0054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The connection arrangement between an implant (1) and a straight or angled abutment (800) can be produced using a clamping screw (400) and an expanding ring (500). An inlet (830) is provided in the abutment (800), and near the lower end of the abutment (800) this inlet (830) is widened via a radially encircling groove (835). The expanding ring (500) through which the clamping screw (400) passes is supported in the groove (835), the head (410) of the clamping screw (400) pressing on the expanding ring (500), and its threaded segment (430) engaging in the threaded bore (21) of the implant (1). The clamping screw (400) can be pushed from below into the inlet (830), with the expanding ring (500) pushed on and with the head (410) leading. The implant (1) can have a non-rotationally symmetrical receiving contour on the inner cone, primarily an inner polygon, and the abutment (800) advantageously has a counter-contour complementary to the receiving contour. A special screwdriver is used for screwing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.