Dental implant assembly having tactile feedback
US5449291A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1993 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Dec 21, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C8/0068
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental implant assembly includes an implant for osseointegration in alveolar bone, an abutment removably attached to the implant for supporting a tooth prosthesis, and a screw received through an axial bore in the abutment and engaging a threaded bore in the implant. The implant includes an annular shoulder and a plurality of splines spaced from one another to define slots therebetween and disposed circumferentially about the opening of the threaded bore. The abutment includes an annular end face in engagement with the annular shoulder of the implant. A cylindrical recess is disposed radially inwardly of the annular end face and receives the splines of the implant therewithin. The cylindrical recess communicates with the axial bore. A plurality of circumferentially spaced axially extending splines defining slots therebetween are disposed within the cylindrical recess and are interleaved with the splines of the implant. The end faces of the splines of the abutment are recessed axially from the annular end face by an amount less than one half the axial length of the splines of the abutment to provide piloting of the splines of the implant in the cylindrical recess without generatin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.