US3578744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for orthodontic treatment
Assignee: Ormco Corp
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Filing: 1969-09-12
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Granted: 1971-05-18
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Expires: 1989-09-12
Abstract
Abstract After securement of brackets of novel design to teeth of a patient to be treated, impression is taken of the mouth. The impression is removed, replicas of brackets are inserted in impression and casting made of teeth which are then separated and positioned in ideal location in a model. Arch wires are then preformed to fit brackets on ideal model and after preforming, arch wire transferred to mouth of patient. Brackets have groove to receive arch wire which is locked in place by follower and snap ring.
Inventors
- 👤 Alexander J Wildman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:51
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/28; A61C7/287
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
218 words
An orthodontic arch wire bracket for attachment to a tooth band and for connection to an arch wire means of predetermined thickness comprising: a body member including a base portion having a base surface for attachment to a tooth band, a head portion having a labial surface, said head portion having a horizontal groove therein opening to said labial surface for receiving an arch wire, said groove having a depth greater than the said arch wire thickness, said head portion having a first vertical groove therein opening to said labial surface and having a depth relative to the depth of said horizontal groove by an amount substantially no less than said arch wire thickness, said base portion having a second vertical groove therein, said head portion having a notch therein extending between said first and second vertical grooves and opening to said labial surface of said head portion, a follower member comprising a base portion adapted slidably to engage within said second vertical groove, an arm portion adapted to be received within said notch, and a finger portion adapted to be received in said first vertical groove and to extend over an arch wire engaged within said horizontal groove, and lock means for releasably engaging said follower to prevent accidental removal of the same from said body member.
Claim 2
Dependent Claim
218 words
An orthodontic arch wire bracket for attachment to a tooth band and for connection to an arch wire means of predetermined thickness comprising: a body member including a base portion having a base surface for attachment to a tooth band, a head portion having a labial surface, said head portion having a horizontal groove therein opening to said labial surface for receiving an arch wire, said groove having a depth greater than the said arch wire thickness, said head portion having a first vertical groove therein opening to said labial surface and having a depth relative to the depth of said horizontal groove by an amount substantially no less than said arch wire thickness, said base portion having a second vertical groove therein, said head portion having a notch therein extending between said first and second vertical grooves and opening to said labial surface of said head portion, a follower member comprising a base portion adapted slidably to engage within said second vertical groove, an arm portion adapted to be received within said notch, and a finger portion adapted to be received in said first vertical groove and to extend over an arch wire engaged within said horizontal groove, and lock means for releasably engaging said follower to prevent accidental removal of the same from said body member.
Claim 3
Dependent Claim
46 words
A bracket as set forth in claim 1 wherein said body member comprises a shank portion between said base and head portions of reduced cross-sectional dimension relative to said base and head portions, said lock means comprising a snapring adapted to be received about said shank.
Claim 4
Dependent Claim
27 words
A bracket as set forth in claim 2 wherein the bottom of said horizontal groove is spaced from said base portion by the thickness of said snapring.
Claim 5
Dependent Claim
19 words
A bracket as set forth in claim 1 wherein said notch is of lesser width than said vertical grooves.
Claim 6
Dependent Claim
18 words
A bracket as set forth in claim 2 wherein said snapring is formed with wings projecting horizontally therefrom.
Claim 7
Dependent Claim
38 words
A bracket as set forth in claim 2 wherein said follower member base portion is formed with indentations on each of its opposite sides for receiving the ends of said snapring during insertion or demounting of said follower.
Claim 8
Dependent Claim
44 words
A bracket as set forth in claim 2 wherein said follower member is provided with means releasably to engage the ends of said snapring at a predetermined position of said follower member so as to retain said follower member in a partially demounted position.
Claim 9
Dependent Claim
24 words
A bracket as set forth in claim 2 wherein said snapring is of a diameter greater than the horizontal extent of said head portion.
Claim 10
Dependent Claim
219 words
An orthodontic arch wire bracket for attachment to a tooth band and for connection to an arch wire comprising: a body member including a base portion having a base surface for attachment to a tooth band, a head portion having a labial surface, and a shank portion positioned between said base and head portions and being of reduced cross-sectional dimension relative to said base and head portions, said head portion having a horizontal groove therein opening to said labial surface for receiving an arch wire, said head portion having a first vertical groove therein opening to said labial surface of the same depth as said horizontal groove, said base and shank portions having a second vertical groove therein, said head portion having a notch therein extending between said first and second vertical grooves and opening to the surface of said head portion, a follower member comprising a base portion adapted slidably to engage within said second vertical groove, an arm portion adapted to be received within said notch, and a finger portion adapted to be received in said first vertical groove and to extend over an arch wire engaged within said horizontal groove, and a snapring adapted to be received about said shank and to engage said follower to prevent accidental removal of the same from said body member.
Claim 11
Dependent Claim
219 words
An orthodontic arch wire bracket for attachment to a tooth band and for connection to an arch wire comprising: a body member including a base portion having a base surface for attachment to a tooth band, a head portion having a labial surface, and a shank portion positioned between said base and head portions and being of reduced cross-sectional dimension relative to said base and head portions, said head portion having a horizontal groove therein opening to said labial surface for receiving an arch wire, said head portion having a first vertical groove therein opening to said labial surface of the same depth as said horizontal groove, said base and shank portions having a second vertical groove therein, said head portion having a notch therein extending between said first and second vertical grooves and opening to the surface of said head portion, a follower member comprising a base portion adapted slidably to engage within said second vertical groove, an arm portion adapted to be received within said notch, and a finger portion adapted to be received in said first vertical groove and to extend over an arch wire engaged within said horizontal groove, and a snapring adapted to be received about said shank and to engage said follower to prevent accidental removal of the same from said body member.
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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |