Dental magnetic attachment
US6709270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Jun 6, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C8/0059
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental attachment is disclosed which provides an improved connection force and fitting between an implant and a keeper. A keeper has a main body with a attracted face, a screw part that is located at the back face, a conical tapered shaft, and a projecting ring part. The projecting ring part has an inclining inner face and an acute angle pointed end. An implant has a screw hole part, a conical tapered hole part which has about the same inclining angle of the tapered axle part, and an inclining end face. When the keeper and the implant are connected, the tapered shaft and the tapered hole part are fitted closely and at the same time, the inner face of the acute angle pointed end and the inclining end part are in contact and at least the acute angle pointed end of the projecting ring part is elastically transformed toward the diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.