← Back to Patent Explorer
US4950161A Expired / Lapsed US ⏱️ 0.0 years remaining

Assembly for connecting a crown part to an implant

Assignee: Individual
•
Filing: 1989-06-01
•
Granted: 1990-08-21
•
Expires: 2009-06-01
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An assembly for connecting a crown part to an implant in which the jaw of an individual has an implant-connecting member in which a setscrew extends into a pin of the crown-connecting part, the two members having juxtaposed surfaces which are in continuous and all-around sealing adhesive-bonding relationship with an annular disk cushion permitting relative displacement of the crown connector to the implant coupler.

Inventors

  • 👤 Ernst-Jurgen Richter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:53
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0086; A61C8/0048; A61C8/005; A61C8/0054; A61C8/0057; A61C8/0069

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 166 words
A jaw-implant connecting assembly for affixing a prosthetic crown part to a jaw implant, said assembly comprising: an implant-connecting member having first and second end portions at opposite termini thereof, said member being affixed to an implant and having an and face on said first end portion turned away from said implant; a crown-part-connecting member adapted to be affixed to said prosthetic crown part and having an end face juxtaposed with said end face of said implant-connecting member; an elastic cushion which is an annular disk interposed between said members and, at least in regions of outer surfaces thereof in contact with said end faces, being fixedly connected to said end faces; and wherein said implant-connecting member is elongated, said second end portion is provided with a threaded bore opening into a cylindrical recess of larger diameter than said bore and interposed between said end face of said implant-connecting member in said bore, said second end portion having a smaller diameter than said first end portion.
Claim 2
Dependent Claim 166 words
A jaw-implant connecting assembly for affixing a prosthetic crown part to a jaw implant, said assembly comprising: an implant-connecting member having first and second end portions at opposite termini thereof, said member being affixed to an implant and having an and face on said first end portion turned away from said implant; a crown-part-connecting member adapted to be affixed to said prosthetic crown part and having an end face juxtaposed with said end face of said implant-connecting member; an elastic cushion which is an annular disk interposed between said members and, at least in regions of outer surfaces thereof in contact with said end faces, being fixedly connected to said end faces; and wherein said implant-connecting member is elongated, said second end portion is provided with a threaded bore opening into a cylindrical recess of larger diameter than said bore and interposed between said end face of said implant-connecting member in said bore, said second end portion having a smaller diameter than said first end portion.
Claim 3
Dependent Claim 32 words
The assembly defined in claim 1 wherein said first end portion is provided with an enlargement extending outwardly from said second end portion and defining the end face of said implant-connecting member.
Claim 4
Dependent Claim 29 words
The assembly defined in claim 2 wherein said annular disk is bonded to said end face of said implant-connecting member over the entire area thereof and of said enlargement
Claim 5
Dependent Claim 35 words
The assembly defined in claim 2 wherein said crown-part-connecting member is formed with a pin projecting axially from said end face of said crown-part-connecting member, traversing said annular disk and extending into said cylindrical recess.
Claim 6
Dependent Claim 34 words
The assembly defined in claim 4 wherein said pin is stepped so as to have a large-diameter step adjacent the end face of said crown-part-connecting member and a small-diameter step adjoining said large-diameter step.
Claim 7
Dependent Claim 20 words
The assembly defined in claim 5 wherein said pin has a free end provided with an axially inwardly extending recess.
Claim 8
Dependent Claim 16 words
The assembly defined in claim 6 wherein said axially inwardly extending recess is inwardly conically tapered.
Claim 9
Dependent Claim 31 words
The assembly defined in claim 7 wherein said cylindrical recess and said large-diameter step are dimensioned so that said large-diameter step is received with a tolerance fit in said cylindrical recess.
Claim 10
Dependent Claim 25 words
The assembly defined in claim 7, further comprising a setscrew threadedly received in said bore and having a head extending into said inwardly extending recess.
Claim 11
Dependent Claim 20 words
The assembly defined in claim 9 wherein said head has a shape complementary to that of the inwardly extending recess.
Claim 12
Dependent Claim 20 words
The assembly defined in claim 10 wherein said head is received with a slight play in said inwardly extending recess.
Claim 13
Dependent Claim 22 words
The assembly defined in claim 11, further comprising an elastic layer between the bottom of said inwardly extending recess and said head.
Claim 14
Dependent Claim 323 words
A jaw-implant connecting assembly for affixing a prosthetic crown part to a jaw implant, said assembly comprising: an implant-connecting member having first and second end portions at opposite termini thereof, said member being affixed to an implant and having an end face on said first end portion turned away from said implant; a crown-part-connecting member adapted to be affixed to said prosthetic crown part and having an end face juxtaposed with said end face of said implant-connecting member; an elastic cushion which is an annular disk interposed between said members and, at least in regions of outer surfaces thereof in contact with said end faces, being fixedly connected to said end faces; and wherein said implant-connecting member is elongated, said second end portion is provided with a threaded bore opening into a cylindrical recess of larger diameter than said bore and interposed between said end face of said implant-connecting member in said bore, said second end portion having a smaller diameter than said first end portion; said first end portion is provided with an enlargement extending outwardly from said first end portion and defining the end face of said implant-connecting member; said annular disk is bonded to said end face of said implant-connecting member over the entire area thereof and of said enlargement; said crown-part-connecting member is formed with a pin projecting axially from said face of said crown-part-connecting member, traversing said annular disk and extending into said cylindrical recess; said pin is stepped so as to have a large-diameter step adjacent the end face of said crown-part-connecting member and a small-diameter step adjoining said large-diameter step; said pin has a free end provided with an axially inwardly extending recess; said cylindrical recess and said large-diameter step are dimensioned so that said large-diameter step is received with a tolerance fit in said cylindrical recess; and a setscrew is threadedly received in said bore and has a head extending into said inwardly extending recess.
Claim 15
Dependent Claim 323 words
A jaw-implant connecting assembly for affixing a prosthetic crown part to a jaw implant, said assembly comprising: an implant-connecting member having first and second end portions at opposite termini thereof, said member being affixed to an implant and having an end face on said first end portion turned away from said implant; a crown-part-connecting member adapted to be affixed to said prosthetic crown part and having an end face juxtaposed with said end face of said implant-connecting member; an elastic cushion which is an annular disk interposed between said members and, at least in regions of outer surfaces thereof in contact with said end faces, being fixedly connected to said end faces; and wherein said implant-connecting member is elongated, said second end portion is provided with a threaded bore opening into a cylindrical recess of larger diameter than said bore and interposed between said end face of said implant-connecting member in said bore, said second end portion having a smaller diameter than said first end portion; said first end portion is provided with an enlargement extending outwardly from said first end portion and defining the end face of said implant-connecting member; said annular disk is bonded to said end face of said implant-connecting member over the entire area thereof and of said enlargement; said crown-part-connecting member is formed with a pin projecting axially from said face of said crown-part-connecting member, traversing said annular disk and extending into said cylindrical recess; said pin is stepped so as to have a large-diameter step adjacent the end face of said crown-part-connecting member and a small-diameter step adjoining said large-diameter step; said pin has a free end provided with an axially inwardly extending recess; said cylindrical recess and said large-diameter step are dimensioned so that said large-diameter step is received with a tolerance fit in said cylindrical recess; and a setscrew is threadedly received in said bore and has a head extending into said inwardly extending recess.

References Cited (Backward Citations)

US2880508A Cited
US4014095A Cited
US4318696A Cited
DE3325666A1 Cited
US4552532A Cited
US4609354A Cited
US4657510A Cited
US4746293A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-08-20 1994-02-19 1994-08-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-08-20 1998-02-19 1998-08-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-08-20 2002-02-19 2002-08-21 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag