GB2176709A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Fixture for attaching prosthesis to bone
Assignee: Individual
•
Filing: 1986-05-19
•
Granted: —
•
Expires: 2006-05-19
Abstract
No abstract record available.
Inventors
- 👤 John Marston Symington
- 👤 Robin Dale Listrom
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-23 05:16
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0048; A61C8/005; A61C8/0018; A61C8/0022; A61C8/0066; A61C8/0068; A61C8/0054; A61C8/006
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
38 words
A device for use in connecting a prosthesis to bone, comprising an implant portion for integration with bone and an abutment portion for connection with said prosthesis, said implant portion being externally threaded and tapering downwardly. 4 GB
Claim 2
Independent Claim
38 words
A device for use in connecting a prosthesis to bone, comprising an implant portion for integration with bone and an abutment portion for connection with said prosthesis, said implant portion being externally threaded and tapering downwardly. 4 GB
Claim 3
Dependent Claim
12 words
2 176 709 A 4 the implant at the complementary surfaces. 55
Claim 4
Dependent Claim
12 words
2 176 709 A 4 the implant at the complementary surfaces. 55
Claim 5
Dependent Claim
10 words
The device of claim 2 wherein the implant is self-tapping.
Claim 6
Dependent Claim
12 words
The device of claim 3 wherein the prosthesis is a dental prosthesis.
Claim 7
Dependent Claim
43 words
The device of claim 4 wherein one of either said 60 lower surface of the abutment or said upper surface of said implant bears a tongue and the other defines a complementary groove, said tongue and groove interfitting to prevent relative rotation therebetween.
Claim 8
Dependent Claim
59 words
The device of claim 5 wherein said abutment defines a first bore extending longitudinally through said abutment and along a central axis thereof and said implant defines a screw threaded second bore adapted to align with said first bore of said 70 abutment extending longitudinally from said upper surface of said implant along a central axis of said implant.
Claim 9
Dependent Claim
61 words
The device of claim 6 wherein said abutment defines a seat co-axial with said first bore and superiorthereto and said connecting means comprises a bolt having a head and a screw threaded portion such that when the bolt is in its connecting position, the head of the bolt engages with said seat and the screw threaded portion engages said second bore.
Claim 10
Dependent Claim
20 words
The device of claim 7 wherein the abutment includes a third screw threaded bore in the area above said seat.
Claim 11
Dependent Claim
46 words
The device of claim 6 including a retaining screw adapted to engage in said third bore, said retaining screw comprising a shaft and a head, the length of the screw being such that when said shaft is received in said bore, said head abuts said abutment.
Claim 12
Dependent Claim
13 words
The device of claim 9 wherein said abutment has a part-sphericai dome shape.
Claim 13
Dependent Claim
17 words
The device of claim 6 wherein said abutment has a part-spherical dome shape and defines a waist.
Claim 14
Dependent Claim
15 words
The device of claim 10 wherein the abutment and implant are machined from titanium alloy.
Claim 15
Independent Claim
188 words
A device for use in connecting a dental bridge within the oral cavity which comprises an implant for integration with mandibular bone having a head providing an upper planar surface with a recess therein and an externally screw threaded shaft depending from the head, and tapering downwardly from the head, the implant defining a first screw-threaded bore extending longitudinally from said recess and along the central axis of the implant; an abutment for receiving the dental bridge, the abutment having a cylindrical portion having a lower planar surface with a protrusion extending therefrom whereby the lower surface is complementary to the upper surface of the head of the implant, and an upper part-spherical domed surface, the abutment defining a second bore extending longitudinally through said abutment and along a central axis thereof such that when the implant and the abutment are mated at their respective upper and lower surfaces, said first bore and said second bore are aligned; and connecting means for connecting the abutment to the implant comprised of a screw threaded element capable of being positioned within said first and second bores to effect said connection.
Claim 16
Independent Claim
188 words
A device for use in connecting a dental bridge within the oral cavity which comprises an implant for integration with mandibular bone having a head providing an upper planar surface with a recess therein and an externally screw threaded shaft depending from the head, and tapering downwardly from the head, the implant defining a first screw-threaded bore extending longitudinally from said recess and along the central axis of the implant; an abutment for receiving the dental bridge, the abutment having a cylindrical portion having a lower planar surface with a protrusion extending therefrom whereby the lower surface is complementary to the upper surface of the head of the implant, and an upper part-spherical domed surface, the abutment defining a second bore extending longitudinally through said abutment and along a central axis thereof such that when the implant and the abutment are mated at their respective upper and lower surfaces, said first bore and said second bore are aligned; and connecting means for connecting the abutment to the implant comprised of a screw threaded element capable of being positioned within said first and second bores to effect said connection.
Claim 17
Dependent Claim
10 words
The device of claim 13 wherein the implant is self-tapping.
Claim 18
Dependent Claim
15 words
The device of claim 14 wherein the abutment and implant are machined from titanium alloy.
Claim 19
Independent Claim
211 words
A device for use in connecting an artificial tooth within the oral cavity which comprises an implant for integration with mandibular bone having a head providing an upper planar surface with a recess therein and an externally screwthreaded shaft depending from the head, and tapering downwardly from the head, the implant defining a first screw- threaded bore extending longitudinally from said recess and along the central axis of the implant; an abutment for receiving the dental bridge, the abutment having a cylindrical portion having a lower planar surface with a protrusion extending therefrom whereby the lower surface is complementary to the upper surface of the head of the implant, and peg means extending from the go cylindrical portion the peg means having a diameter generally less than the diameter of the cylindrical portion from which it extends, the abutment defining a second bore extending longitudinally through said abutment and along a central axis thereof such that when the implant and the abutment are mated at their respective upper and lower surfaces, said first bore and said second bore are aligned; and connecting means for connecting the abutment to loo the implant comprised of a screw threaded element capable of being positioned within said first and second bores to effect said connection.
Claim 20
Independent Claim
211 words
A device for use in connecting an artificial tooth within the oral cavity which comprises an implant for integration with mandibular bone having a head providing an upper planar surface with a recess therein and an externally screwthreaded shaft depending from the head, and tapering downwardly from the head, the implant defining a first screw- threaded bore extending longitudinally from said recess and along the central axis of the implant; an abutment for receiving the dental bridge, the abutment having a cylindrical portion having a lower planar surface with a protrusion extending therefrom whereby the lower surface is complementary to the upper surface of the head of the implant, and peg means extending from the go cylindrical portion the peg means having a diameter generally less than the diameter of the cylindrical portion from which it extends, the abutment defining a second bore extending longitudinally through said abutment and along a central axis thereof such that when the implant and the abutment are mated at their respective upper and lower surfaces, said first bore and said second bore are aligned; and connecting means for connecting the abutment to loo the implant comprised of a screw threaded element capable of being positioned within said first and second bores to effect said connection.
Claim 21
Independent Claim
11 words
A device according to claim I and substantially as herein described.
Claim 22
Independent Claim
35 words
A device for use in connecting a prosthesis to bone, the device being substantially as described herein with reference to Figures 1 to 6 or any of Figures 7 to 9 of the accompanying drawings.
Claim 23
Independent Claim
35 words
A device for use in connecting a prosthesis to bone, the device being substantially as described herein with reference to Figures 1 to 6 or any of Figures 7 to 9 of the accompanying drawings.
References Cited (Backward Citations)
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