US4573922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial endo-osseous pillar for supporting fixed prosthetic members
Assignee: Individual
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Filing: 1984-01-13
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Granted: 1986-03-04
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Expires: 2004-01-13
Abstract
Abstract The invention relates to a device, metallic or of other biologically acceptable material, which is surgically inserted in the jaw bones for the purpose of artificially supporting and anchoring a fixed oral prosthetic member. The device consists of a substantially triangular plate with a plurality of holes and notches on the surface contacting the surrounding bone. The plate has a vertical pin integrally attached to a small shoulder and serving to fix a stump that protrudes into the oral cavity and to anchor the prosthetic member in place.
Inventors
- 👤 Lino L. Bello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:01
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0048; A61C8/0075; A61C8/0018; A61C8/0019
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
102 words
Artificial endo-osseous pillar for supporting a fixed oral prosthetic member, which consists of a biologically acceptable plate, substantially triangularly shaped, having on its surface a plurality of holes and along the oblique sides of said surface a plurality of projections and protrusions, said projections and protrusions being of various length and upwardly faced and symmetrical to opposed ones, said plate ending at its upper extremity in a vertical pin integral with a very small shoulder, said pin serving to fix a stump that protrudes into the oral cavity, said plate ending at its lower extremity in a rectilinear and conically tapered edge.
Claim 2
Dependent Claim
102 words
Artificial endo-osseous pillar for supporting a fixed oral prosthetic member, which consists of a biologically acceptable plate, substantially triangularly shaped, having on its surface a plurality of holes and along the oblique sides of said surface a plurality of projections and protrusions, said projections and protrusions being of various length and upwardly faced and symmetrical to opposed ones, said plate ending at its upper extremity in a vertical pin integral with a very small shoulder, said pin serving to fix a stump that protrudes into the oral cavity, said plate ending at its lower extremity in a rectilinear and conically tapered edge.
Claim 3
Dependent Claim
16 words
The artificial pillar of claim 1, wherein said plate is made of a biologically acceptable metal.
Claim 4
Dependent Claim
14 words
The artificial pillar of claim 1, wherein said pin has a threaded free extremity.
Claim 5
Dependent Claim
27 words
The artificial pillar of claim 1, wherein said pin has a cross-sectionally free extremity so shaped as to have at least one flat and suitably oriented surface.
Claim 6
Dependent Claim
13 words
The artificial pillar of claim 1, wherein the dimensions thereof measure 15×16×2 millimeters.
Claim 7
Dependent Claim
28 words
The artificial pillar of claim 1, wherein said plate lies in a plane, all of said plurality of projections and protrusions extending in said plane and being rigid.
Claim 8
Dependent Claim
29 words
The artificial pillar of claim 6, wherein said plurality of projections includes at least one projection extending from each oblique side in a direction normal to each oblique side.
Claim 9
Dependent Claim
40 words
The artificial pillar of claim 7, wherein said plurality of projections includes one additional projection extending parallel to each oblique side and extending from said short shoulder at a location spaced from each oblique side toward a respective normal projection.
Claim 10
Dependent Claim
18 words
The artificial pillar of claim 8, wherein said plurality of holes comprises three holes extending through said plate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |