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US4225668A Expired / Lapsed US ⏱️ 0.0 years remaining

Blade endo-osseous apparatus for dental plates, and fixing method therefor

Assignee: Individual
•
Filing: 1978-12-08
•
Granted: 1980-09-30
•
Expires: 1998-12-08
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Abstract

Abstract An improved endo-osseous apparatus for dental plates is described which comprises a series of blades for the anchoring to the osseous tissue of the gums. The upper portion of each anchoring blade is formed by a projecting threaded pin of small diameter, provided with a movable or fixed cap or bush and with an internally threaded hollow element adapted to be screwed onto the pin. A ferula is provided with through holes, for insertion of the pins. The anchoring blades are fixed to the ferula by means of threaded hollow elements or knurled nuts which are screwed to the pin. The threaded hollow element may be a frustum conical cap, with the end zone flap-enlarged and having the same diameter as the cap or bush. The ferula may be provided with projections, each projection having a frustum-conical shape, the projections located at the two hollow ends of the ferula being hollow and internally threaded, thus allowing for the prosthesis to be fixed by screws passing through the corresponding holes of the prosthesis teeth and screwed in the projections. A temporary ferula is fixed into the projecting pins, and a temporary prosthesis is fixed onto the temporary ferula. After perfect cicatrization has occurred, the temporary prosthesis and ferula are removed, the final ferula is fixed by means of the internally threaded hollow elements, and the final prosthesis provided with suitable through holes is fixed.

Inventors

  • 👤 Gian V. Bartoli

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 00:58
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0018; A61C8/0019; A61C8/0048

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 111 words
An endo-osseous apparatus for the teeth of the prosthesis comprising: a plurality of blades for the anchoring to the osseous tissue of the gums; a threaded pin projecting from each anchoring blade; a cap placed onto each said pin, said cap being held housed within the gums; a first connecting means comprising rods between the adjacent blades to join the adjacent blades provided with orifices for the insertion of said pins; second means for fixing said first connecting means to the blades and for stabilizing the prosthesis, engageable with each pin, said second means comprising a hollow threaded element; and third means for screwing the prothesis onto said second supporting means.
Claim 2
Dependent Claim 111 words
An endo-osseous apparatus for the teeth of the prosthesis comprising: a plurality of blades for the anchoring to the osseous tissue of the gums; a threaded pin projecting from each anchoring blade; a cap placed onto each said pin, said cap being held housed within the gums; a first connecting means comprising rods between the adjacent blades to join the adjacent blades provided with orifices for the insertion of said pins; second means for fixing said first connecting means to the blades and for stabilizing the prosthesis, engageable with each pin, said second means comprising a hollow threaded element; and third means for screwing the prothesis onto said second supporting means.
Claim 3
Dependent Claim 11 words
The apparatus according to claim 1 wherein the cap is fixed.
Claim 4
Dependent Claim 15 words
The apparatus according to claim 1 wherein each cap is screwed onto each said pin.
Claim 5
Dependent Claim 18 words
An apparatus according to claim 1 wherein the threaded hollow element is cylindrical and has a notched head.
Claim 6
Dependent Claim 28 words
An apparatus according to claim 1 wherein the threaded hollow element is a frustum conical cap, with the end flap-enlarged and having the same diameter as said cap.
Claim 7
Dependent Claim 15 words
An apparatus according to claim 1 wherein the threaded hollow element is a knurled nut.
Claim 8
Dependent Claim 15 words
An apparatus according to claim 1 wherein the threaded hollow element is made of titanium.
Claim 9
Dependent Claim 66 words
An apparatus according to claim 6 wherein the upper end portion of each of the threaded pins, located at the end of said first connecting means is left free, the teeth of the prosthesis have orifices, and onto each free portion is screwed said knurled nut which passes through said orifices of the teeth at said free end of the threaded pins for fastening said prosthesis.
Claim 10
Dependent Claim 57 words
An apparatus according to claim 8 wherein the first connecting means are provided with projections, each said projection having a frustum-conical shape, the projections located at the two hollow ends of said first connecting means being hollow and innerly threaded, and screws pass through the orifices of the prosthesis teeth and holding said teeth in said projections.
Claim 11
Dependent Claim 15 words
An apparatus according to claim 9 wherein said first connecting means is made of titanium.
Claim 12
Dependent Claim 38 words
The apparatus according to claim 1 wherein said first connecting means comprise a plurality of curved small rods, having different lengths, having flattened ends, said ends being provided with orifices, said projecting pins being inserted through said orifices.

References Cited (Backward Citations)

US1140538A Cited
US2836890A Cited
US3414975A Cited
US3514858A Cited
US3748739A Cited
US3837080A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-09-30 1984-03-31 1984-09-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-09-30 1988-03-31 1988-09-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-09-30 1992-03-31 1992-09-30 $7700.00 Window Closed / Lapsed

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