Means for fastening artificial teeth
First Claim
1. An apparatus for fastening a dental implant in a jaw comprising:
- an implant primary portion formed with a longitudinal blind bore closed at a distal end thereof, the implant primary portion adapted and designed for insertion into the jaw;
a shell formed with a longitudinal through bore adapted and designed for coaxial retention within the blind bore so as to extend to less than the closed distal end of the blind bore;
a secondary portion having a longitudinal axis with a distally extending shank terminating in a distal enlargement and a longitudinal through bore, the shank having a distal slot parallel to the longitudinal axis, the secondary portion also having a proximally enlarged head of larger cross-section than the blind bore, the shank sized and adapted for being fully coaxially retained within the longitudinal through bore of the shell, so that the distal enlargement extends past a distal end of the shell;
a top adapted and arranged to be matingly positioned on the enlarged head, the top provided with a longitudinal through bore in coaxial alignment with the through bore of the secondary portion; and
an elongated mandrel sized and adapted to be longitudinally retained within the top through bore and within the through bore of the secondary portion for retaining the top in position against the enlarged head and for urging sections of the slotted shank radially outward.
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Accused Products
Abstract
Means for fastening artificial teeth in the human jaw comprising an implant which is to be inserted into the jaw and is formed as a closed shell, a secondary portion including a connecting shank and being connectable to said implant, which secondary portion serves as a support for the artificial teeth, and a fastening element for fastening the artificial teeth to said secondary portion, with said connecting shank being held in the blind bore of said implant and at the proximal end comprising at least one slot parallel to the axis for providing a snap and spread connection with a rear cut in said blind bore, with said shank comprising a radially spreadable section which with the aid of a mandrel inserted into said secondary portion via an axial bore can be spread or, respectively, radially held in said implant, and said secondary portion comprising a radial shoulder which is supported by the distal end of said implant as soon as said spreadable section engages said rear cut.
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Citations
17 Claims
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1. An apparatus for fastening a dental implant in a jaw comprising:
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an implant primary portion formed with a longitudinal blind bore closed at a distal end thereof, the implant primary portion adapted and designed for insertion into the jaw; a shell formed with a longitudinal through bore adapted and designed for coaxial retention within the blind bore so as to extend to less than the closed distal end of the blind bore; a secondary portion having a longitudinal axis with a distally extending shank terminating in a distal enlargement and a longitudinal through bore, the shank having a distal slot parallel to the longitudinal axis, the secondary portion also having a proximally enlarged head of larger cross-section than the blind bore, the shank sized and adapted for being fully coaxially retained within the longitudinal through bore of the shell, so that the distal enlargement extends past a distal end of the shell; a top adapted and arranged to be matingly positioned on the enlarged head, the top provided with a longitudinal through bore in coaxial alignment with the through bore of the secondary portion; and an elongated mandrel sized and adapted to be longitudinally retained within the top through bore and within the through bore of the secondary portion for retaining the top in position against the enlarged head and for urging sections of the slotted shank radially outward. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for fastening a dental implant in a jaw comprising:
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an implant primary portion formed with a longitudinal blind bore (104) closed at a distal end thereof, the bore provided with a radially constricting member at less than the distal end thereof, the implant primary portion adapted and designed for insertion into the jaw; a secondary portion having a longitudinal axis with a distally extending shank terminating in a distal enlargement and a longitudinal through bore, the shank having a distal slot parallel to the longitudinal axis, the secondary portion also having a proximally enlarged head of larger cross-section than the blind bore, the shank sized and adapted for being fully coaxially retained within the blind bore, so that the distal enlargement extends past the radially constricting member; a top adapted and arranged to be matingly positioned on the enlarged head, the top provided with a longitudinal through bore in coaxial alignment with the through bore of the secondary portion; and an elongated mandrel sized and adapted to be longitudinally retained within the top through bore and within the through bore of the secondary portion for urging sections of the slotted shank radially outward. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification