US4024639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone implants and method for inserting the same
Assignee: END DENT Inc
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Filing: 1975-02-25
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Granted: 1977-05-24
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Expires: 1995-02-25
Abstract
Abstract A dental implant which is imbedded within a body of acrylic material in a channel formed in the jawbone such that no portion of the implant comes in contact with the bone. The implant includes one or more projecting pins for supporting an artificial tooth and a series of lateral projections which extend into the acrylic material to hold the implant in place.
Inventors
- 👤 Fredric M. Weiss
- 👤 David P. Malkin
- 👤 James Pugh
- 👤 Charles Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:44
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0018
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
169 words
A dental implant for insertion into a cavity in bone structure, the implant comprising, in combination: a support member having a pair of opposed surfaces, the support member including a plurality of generally planar lateral projections extending in a transverse direction from said surfaces, the overall dimensions of the support member being respectively less than the corresponding dimensions of the cavity; at least one pin means in rigid relationship with the support member and being of a length sufficient to protrude from the cavity, the lateral projections on said support member lying in a plane which is perpendicular to the axis of the pin means and which is transverse of the plane in which said axis of the pin means lies, whereby the plane of said projections intersects said axis of the pin means at a right angle; and a body of nontoxic filler material adapted to be disposed within the cavity around the support member for permanently preventing all contact between the support member and the bone structure.
Claim 2
Dependent Claim
169 words
A dental implant for insertion into a cavity in bone structure, the implant comprising, in combination: a support member having a pair of opposed surfaces, the support member including a plurality of generally planar lateral projections extending in a transverse direction from said surfaces, the overall dimensions of the support member being respectively less than the corresponding dimensions of the cavity; at least one pin means in rigid relationship with the support member and being of a length sufficient to protrude from the cavity, the lateral projections on said support member lying in a plane which is perpendicular to the axis of the pin means and which is transverse of the plane in which said axis of the pin means lies, whereby the plane of said projections intersects said axis of the pin means at a right angle; and a body of nontoxic filler material adapted to be disposed within the cavity around the support member for permanently preventing all contact between the support member and the bone structure.
Claim 3
Dependent Claim
24 words
An implant as defined in claim 1, in which the support member is of metallic material and the filler material comprises an acrylic resin.
Claim 4
Dependent Claim
144 words
A dental implant for insertion into a cavity in bone structure, the bone implant comprising, in combination: a support member having a pair of opposed surfaces, the support member including a plurality of integrally formed generally planar lateral projections extending in a transverse direction from each of said surfaces, the overall dimensions of the support member being respectively less than the corresponding dimensions of the cavity; and at least one pin means in rigid relationship with the support member and being of a length sufficient to protrude from the cavity, the lateral projections on said support member lying in a plane which is perpendicular to the axis of the pin means and which is transverse of the plane in which said axis of the pin means lies, whereby the plane of said projections intersects said axis of the pin means at a right angle.
Claim 5
Dependent Claim
144 words
A dental implant for insertion into a cavity in bone structure, the bone implant comprising, in combination: a support member having a pair of opposed surfaces, the support member including a plurality of integrally formed generally planar lateral projections extending in a transverse direction from each of said surfaces, the overall dimensions of the support member being respectively less than the corresponding dimensions of the cavity; and at least one pin means in rigid relationship with the support member and being of a length sufficient to protrude from the cavity, the lateral projections on said support member lying in a plane which is perpendicular to the axis of the pin means and which is transverse of the plane in which said axis of the pin means lies, whereby the plane of said projections intersects said axis of the pin means at a right angle.
Claim 6
Dependent Claim
150 words
A dental implant for insertion into a cavity in bone structure, the implant comprising, in combination: an elongate cobalt-chromium alloy support member having a rectangular cross-section and a pair of opposed surfaces, the support member including a plurality of integrally formed generally planar lateral projections extending in a transverse direction from each of said surfaces, the overall dimensions of the support member being respectively less than the corresponding dimensions of the cavity; and at least one pin means in rigid relationship with the support member and being of a length sufficient to protrude from the cavity, the lateral projections on said support member lying in a plane which is perpendicular to the axis of the pin means and which is transverse of the plane in which said axis of the pin means lies, whereby the plane of said projections intersects said axis of the pin means at a right angle.
Claim 7
Dependent Claim
150 words
A dental implant for insertion into a cavity in bone structure, the implant comprising, in combination: an elongate cobalt-chromium alloy support member having a rectangular cross-section and a pair of opposed surfaces, the support member including a plurality of integrally formed generally planar lateral projections extending in a transverse direction from each of said surfaces, the overall dimensions of the support member being respectively less than the corresponding dimensions of the cavity; and at least one pin means in rigid relationship with the support member and being of a length sufficient to protrude from the cavity, the lateral projections on said support member lying in a plane which is perpendicular to the axis of the pin means and which is transverse of the plane in which said axis of the pin means lies, whereby the plane of said projections intersects said axis of the pin means at a right angle.
Claim 8
Dependent Claim
186 words
A dental implant for insertion into a cavity in bone structure, the implant comprising, in combination: an elongate stainless steel support member having a rectangular cross-section and a pair of opposed surfaces, the support member including a plurality of integrally formed generally planar lateral projections extending in a transverse direction from each of said surfaces, the overall dimensions of the support member being respectively less than the corresponding dimensions of the cavity; at least one pin means in rigid relationship with the support member and being of a length sufficient to protrude from the cavity, the lateral projections on said support member being arranged in oppositely disposed pairs in a single plane which is perpendicular to the axis of the pin means and which is transverse of the plane in which said axis of the pin means lies, whereby the plane of said projections intersects said axis of the pin means at a right angle; and a body of nontoxic acrylic resin adapted to be disposed within the cavity around the support member for permanently preventing all contact between the support member and the bone structure.
Claim 9
Dependent Claim
186 words
A dental implant for insertion into a cavity in bone structure, the implant comprising, in combination: an elongate stainless steel support member having a rectangular cross-section and a pair of opposed surfaces, the support member including a plurality of integrally formed generally planar lateral projections extending in a transverse direction from each of said surfaces, the overall dimensions of the support member being respectively less than the corresponding dimensions of the cavity; at least one pin means in rigid relationship with the support member and being of a length sufficient to protrude from the cavity, the lateral projections on said support member being arranged in oppositely disposed pairs in a single plane which is perpendicular to the axis of the pin means and which is transverse of the plane in which said axis of the pin means lies, whereby the plane of said projections intersects said axis of the pin means at a right angle; and a body of nontoxic acrylic resin adapted to be disposed within the cavity around the support member for permanently preventing all contact between the support member and the bone structure.
Claim 10
Dependent Claim
16 words
An implant as defined in claim 5, in which the body of acrylic resin comprises polymethylmethacrylate.
Claim 11
Independent Claim
87 words
A method of inserting a dental implant into bone structure, comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming a cavity in the exposed portion of the bone structure; applying a body of nontoxic filler material to substantially the entire interior surface of the cavity; thereafter imbedding a support member in the filler material in said cavity such that no portion of the support member contacts the bone structure; and
Claim 12
Independent Claim
87 words
A method of inserting a dental implant into bone structure, comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming a cavity in the exposed portion of the bone structure; applying a body of nontoxic filler material to substantially the entire interior surface of the cavity; thereafter imbedding a support member in the filler material in said cavity such that no portion of the support member contacts the bone structure; and
Claim 13
Independent Claim
108 words
A method for inserting a dental implant into bone structure, comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming a cavity in the exposed portion of the bone structure; applying a body of nontoxic filler material to substantially the entire interior surface of the cavity; thereafter imbedding a support member in the filler material in said cavity such that no portion of the support member contacts the bone structure; holding the support member in spaced relationship with the interior surface of the cavity; and closing the tissue flap over said cavity.
Claim 14
Independent Claim
108 words
A method for inserting a dental implant into bone structure, comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming a cavity in the exposed portion of the bone structure; applying a body of nontoxic filler material to substantially the entire interior surface of the cavity; thereafter imbedding a support member in the filler material in said cavity such that no portion of the support member contacts the bone structure; holding the support member in spaced relationship with the interior surface of the cavity; and closing the tissue flap over said cavity.
Claim 15
Independent Claim
147 words
A method for inserting a dental implant into bone structure, comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming a cavity in the exposed portion of the bone structure; applying a body of nontoxic filler material to substantially the entire interior surface of the cavity, to substantially fill the cavity; thereafter imbedding a support member in the filler material in said cavity such that no portion of the support member contacts the bone structure, the support member having a pair of opposed vertically extending generally parallel surfaces; holding the support member in place within the cavity by a plurality of lateral projections having horizontally extending upwardly facing surfaces extending in a transverse direction from said opposed surfaces into the filler material; and then closing the tissue flap over said cavity.
Claim 16
Independent Claim
147 words
A method for inserting a dental implant into bone structure, comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming a cavity in the exposed portion of the bone structure; applying a body of nontoxic filler material to substantially the entire interior surface of the cavity, to substantially fill the cavity; thereafter imbedding a support member in the filler material in said cavity such that no portion of the support member contacts the bone structure, the support member having a pair of opposed vertically extending generally parallel surfaces; holding the support member in place within the cavity by a plurality of lateral projections having horizontally extending upwardly facing surfaces extending in a transverse direction from said opposed surfaces into the filler material; and then closing the tissue flap over said cavity.
Claim 17
Independent Claim
143 words
A method for inserting a dental implant into bone structure; comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming an elongate cavity in the exposed portion of the bone stucture; applying a body of nontoxic filler material to substantially the entire interior surface of the cavity; thereafter imbedding an elongate support member in the filler material in said cavity such that no portion of the support member contacts the bone structure, the support member having a pair of vertically extending generally parallel opposed surfaces; holding the support member in place within the cavity by a plurality of planar lateral projections having horizontally extending upwardly facing surfaces extending in opposite directions from said opposed surfaces into the filler material; and closing the tissue flap over said cavity.
Claim 18
Independent Claim
143 words
A method for inserting a dental implant into bone structure; comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming an elongate cavity in the exposed portion of the bone stucture; applying a body of nontoxic filler material to substantially the entire interior surface of the cavity; thereafter imbedding an elongate support member in the filler material in said cavity such that no portion of the support member contacts the bone structure, the support member having a pair of vertically extending generally parallel opposed surfaces; holding the support member in place within the cavity by a plurality of planar lateral projections having horizontally extending upwardly facing surfaces extending in opposite directions from said opposed surfaces into the filler material; and closing the tissue flap over said cavity.
Claim 19
Independent Claim
159 words
A method for inserting a dental implant into bone structure, comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming an elongate channel-shaped cavity in the exposed portion of the bone structure; applying a body of nontoxic acrylic material to substantially the entire interior surface of the cavity; thereafter embedding an elongate cobalt-chromium alloy support member in the acrylic material in said cavity such that no portion of the support member contacts the bone structure, the support member having a rectangular cross-section and a pair of opposed vertically extending generally parallel surfaces; holding the support member in place within the cavity by means of a plurality of integrally formed relatively flat planar projections having horizontally extending upwardly facing surfaces extending in a transverse direction from each of said opposed surfaces into the acrylic material; and then closing the tissue flap over said cavity.
Claim 20
Independent Claim
159 words
A method for inserting a dental implant into bone structure, comprising the steps of: incising a tissue layer overlying the bone structure to provide a flap of tissue and expose a portion of said structure; forming an elongate channel-shaped cavity in the exposed portion of the bone structure; applying a body of nontoxic acrylic material to substantially the entire interior surface of the cavity; thereafter embedding an elongate cobalt-chromium alloy support member in the acrylic material in said cavity such that no portion of the support member contacts the bone structure, the support member having a rectangular cross-section and a pair of opposed vertically extending generally parallel surfaces; holding the support member in place within the cavity by means of a plurality of integrally formed relatively flat planar projections having horizontally extending upwardly facing surfaces extending in a transverse direction from each of said opposed surfaces into the acrylic material; and then closing the tissue flap over said cavity.
References Cited (Backward Citations)
US581335A
Cited
US3085334A
Cited
US3672058A
Cited
US3589011A
Cited
GB1278967A
Cited
GB1306027A
Cited
US3729825A
Cited
US3827145A
Cited
US3808606A
Cited
US3919773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |