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US4741698A Expired / Lapsed US ⏱️ 0.0 years remaining

Subperiosteal impant with detachable bar and method for its implanting

Assignee: ANDREWS CERAMIC LABORATORY Inc A CORP OF OHIO
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Filing: 1986-04-08
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Granted: 1988-05-03
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Expires: 2006-04-08
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Abstract

Abstract Disclosed is an improved dental implant for a denture which comprises a frame which is attachable to the mandibular or maxillary bone, said frame bearing bar retention means; a detachable bar having complementary bar retention means for removably attaching said detachable bar to said frame; and denture bearing denture bar retention for attaching said denture to said detachable bar.

Inventors

  • 👤 Douglas V. Andrews

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 00:58
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0048; A61C8/0018; A61C8/0031; A61C8/0075; A61C13/00; A61C13/225; A61C13/235

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 99 words
A subperiosteal dental implant for a denture which comprises: (a) a frame which is shaped to conform to and cradle around and attachable to the mandibular or maxillary bone, said frame bearing solid or annular post bar retention means; (b) a detachable bar having complementary interfitting solid or annular post bar retention means for removably attaching said detachable bar to said frame, said bar being adapted for removal from said frames; and (c) a denture bearing denture bar retention means for attaching said denture to said detachable bar, said denture fashioned from an impression which contains said detachable bar.
Claim 2
Dependent Claim 99 words
A subperiosteal dental implant for a denture which comprises: (a) a frame which is shaped to conform to and cradle around and attachable to the mandibular or maxillary bone, said frame bearing solid or annular post bar retention means; (b) a detachable bar having complementary interfitting solid or annular post bar retention means for removably attaching said detachable bar to said frame, said bar being adapted for removal from said frames; and (c) a denture bearing denture bar retention means for attaching said denture to said detachable bar, said denture fashioned from an impression which contains said detachable bar.
Claim 3
Dependent Claim 21 words
The dental implant of claim 1 which is made from materials selected from the group consisting of metal or ceramic material.
Claim 4
Dependent Claim 28 words
The dental implant of claim 2 wherein said dental implant is manufactured from metal selected from the group consisting of gold, silver, titanium, cobalt-chromium alloys, or combinations thereof.
Claim 5
Dependent Claim 15 words
The dental implant of claim 1 wherein said frame bar retention means comprise annular posts.
Claim 6
Dependent Claim 15 words
The dental implant of claim 1 wherein said frame bar retention means comprise solid posts.
Claim 7
Dependent Claim 13 words
The dental implant of claim 4 wherein said annular posts are internally threaded.
Claim 8
Dependent Claim 28 words
The dental implant of claim 4 wherein said complementary bar retention means of said detachable bar comprise solid posts which fit into said annular frame bar retention posts.
Claim 9
Dependent Claim 28 words
The dental implant of claim 5 wherein said complementary bar retention means of said detachable bar comprise annular posts which fit about said frame bar retention solid posts.
Claim 10
Dependent Claim 20 words
The dental implant of claim 1 wherein said detachable bar additionally contains upper posts which are terminated with rounded ends.
Claim 11
Dependent Claim 42 words
The dental implant of claim 6 wherein said detachable bar has holes which penetrate therethrough and said dental implant additionally comprises screws which penetrate through said holes in said detachable bar for screwing into said internally threaded annular posts on said frame.
Claim 12
Dependent Claim 22 words
The dental implant of claim 1 wherein said denture bar retention means comprises elongate clips for press fitting said detachable bar thereinto.
Claim 13
Dependent Claim 22 words
The dental implant of claim 9 wherein said dental bar retention means comprise O-rings for receiving said rounded ends of said posts.
Claim 14
Dependent Claim 24 words
The dental implant of claim 1 wherein said detachable bar is manufactured from metallic material and said denture bar retention means comprise magnet means.
Claim 15
Dependent Claim 13 words
The dental implant of claim 1 which comprises a plurality of detachable bars.
Claim 16
Dependent Claim 16 words
The dental implant of claim 1 wherein said bar retention means of said frame are submergable.
Claim 17
Dependent Claim 23 words
The dental implant of claim 8 wherein a screw fits transversely into said annular post for retaining said frame bar retention solid post.
Claim 18
Dependent Claim 36 words
The dental implant of claim 1 where, after its implanting into the mouth of a person, said detachable bar is replaced by a dental prosthesis having complementary retention means for attaching said prosthesis to said frame.
Claim 19
Dependent Claim 120 words
Method for implanting a subperiosteal dental implant which comprises: (a) exposing a mandible or maxillary bone by cutting the gingival tissue; (b) attaching a frame to said exposed bone, said frame shaped to conform to and cradle around the exposed bone and bearing solid or annular post bar retention means; (c) suturing the cut gingival tissue; (d) attaching a detachable bar to said frame, said bar having complementary interfitting solid or annular post bar retention means for this attaching; (e) making an impression of said bar and gingival tissue; (f) making a denture from said bar and impression, said denture bearing denture bar retention means; (g) re-attaching said bar to said implant; and (h) attaching said denture to said bar.
Claim 20
Dependent Claim 120 words
Method for implanting a subperiosteal dental implant which comprises: (a) exposing a mandible or maxillary bone by cutting the gingival tissue; (b) attaching a frame to said exposed bone, said frame shaped to conform to and cradle around the exposed bone and bearing solid or annular post bar retention means; (c) suturing the cut gingival tissue; (d) attaching a detachable bar to said frame, said bar having complementary interfitting solid or annular post bar retention means for this attaching; (e) making an impression of said bar and gingival tissue; (f) making a denture from said bar and impression, said denture bearing denture bar retention means; (g) re-attaching said bar to said implant; and (h) attaching said denture to said bar.
Claim 21
Dependent Claim 20 words
The method of claim 18 wherein said re-attaching of step (g) is accomplished by cementing said bar to said implant.
Claim 22
Dependent Claim 16 words
The method of claim 18 wherein said dental implant comprises the dental implant of claim 7.
Claim 23
Dependent Claim 16 words
The method of claim 18 wherein said dental implant comprises the dental implant of claim 8.
Claim 24
Dependent Claim 16 words
The method of claim 18 wherein said dental implant comprises the dental implant of claim 12.
Claim 25
Dependent Claim 23 words
The method of claim 18 wherein for step (g) said bar is replaced by a dental prosthesis which is attached to said frame.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-05-03 1991-11-02 1992-05-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-05-03 1995-11-02 1996-05-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-05-03 1999-11-02 2000-05-03 $7700.00 Window Closed / Lapsed

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