← Back to Patent Explorer
US4575337A Expired / Lapsed US ⏱️ 0.0 years remaining

Orthodontic appliance

Assignee: Individual
•
Filing: 1983-11-25
•
Granted: 1986-03-11
•
Expires: 2003-11-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention relates to an orthodontic appliance to treat irregularities of teeth by attaching an arch wire holder to a plurality of teeth and then connecting one or more orthodontic wires to the arch wire holders. The bracket constituting an arch wire holder is provided with an arch wire fixing slot formed with a specified radius of curvature approximately conforming to the diameter of the arch wire. The curvature radius of the arch wire fixing slot is determined by the purpose of application, namely, it depends on whether it attaches onto the outside (buccal side) surface or the inside (lingual side) surface of the teeth, and for which teeth it is employed. This arch wire holder is especially effective when the bracket is attached to the inside of the teeth for orthodontic purposes, for it then allows the application of corrective forces on the teeth without being easily visible in the user's mouth.

Inventors

  • 👤 Kinya Fujita

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 04:37
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/14; A61C7/143

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 174 words
An orthodontic appliance for applying forces to correct malocclusion of teeth, comprising: a generally U-shaped orthodontic first curved arch wire for applying said corrective forces; a plurality of arch wire support brackets cooperating with and supporting in a predetermined manner said arch wire, each of said brackets being attachable to individual teeth at either the buccal or lingual side thereof, a laterally central portion of a width of each of said brackets being substantially aligned with respect to a laterally central portion of the attached buccal or lingual side, respectively, of said attached tooth; at least one of said brackets being formed with a curved arch wire engaging a first slot extending the full width thereof, said first slot being curved to match the shape of a corresponding portion of said curved arch wire engaged into corresponding slots of adjacent support brackets attached to a plurality of said teeth; and said first slot is curved to be concave toward an end surface of said bracket with which said bracket is attached to a tooth.
Claim 2
Dependent Claim 174 words
An orthodontic appliance for applying forces to correct malocclusion of teeth, comprising: a generally U-shaped orthodontic first curved arch wire for applying said corrective forces; a plurality of arch wire support brackets cooperating with and supporting in a predetermined manner said arch wire, each of said brackets being attachable to individual teeth at either the buccal or lingual side thereof, a laterally central portion of a width of each of said brackets being substantially aligned with respect to a laterally central portion of the attached buccal or lingual side, respectively, of said attached tooth; at least one of said brackets being formed with a curved arch wire engaging a first slot extending the full width thereof, said first slot being curved to match the shape of a corresponding portion of said curved arch wire engaged into corresponding slots of adjacent support brackets attached to a plurality of said teeth; and said first slot is curved to be concave toward an end surface of said bracket with which said bracket is attached to a tooth.
Claim 3
Dependent Claim 199 words
An orthodontic appliance for applying forces to correct malocclusion of teeth, comprising: a generally U-shaped orthodontic first curved arch wire for applying said corrective forces; a plurality of arch wire support brackets cooperating with and supporting in a predetermined manner said arch wire, each of said brackets being attachable to individual teeth at either the buccal or lingual side thereof, a laterally central portion of a width of each of said brackets being substantially aligned with respect to a laterally central portion of the attached tooth; at least one of said brackets being formed with a curved arch wire engaging a first slot extending the full width thereof, said first slot being curved to match the shape of a corresponding portion of said curved arch wire engaged into corresponding slots of adjacent support brackets attached to a plurality of said teeth; a generally U-shaped orthodontic second curved arch wire for applying said corrective forces; and in at least one of said slotted brackets, adjacent and substantially normal to said first slot therein, a second slot for engaging said second arch wire, also extending the full width of that bracket into which said first and said second slots are formed.
Claim 4
Dependent Claim 199 words
An orthodontic appliance for applying forces to correct malocclusion of teeth, comprising: a generally U-shaped orthodontic first curved arch wire for applying said corrective forces; a plurality of arch wire support brackets cooperating with and supporting in a predetermined manner said arch wire, each of said brackets being attachable to individual teeth at either the buccal or lingual side thereof, a laterally central portion of a width of each of said brackets being substantially aligned with respect to a laterally central portion of the attached tooth; at least one of said brackets being formed with a curved arch wire engaging a first slot extending the full width thereof, said first slot being curved to match the shape of a corresponding portion of said curved arch wire engaged into corresponding slots of adjacent support brackets attached to a plurality of said teeth; a generally U-shaped orthodontic second curved arch wire for applying said corrective forces; and in at least one of said slotted brackets, adjacent and substantially normal to said first slot therein, a second slot for engaging said second arch wire, also extending the full width of that bracket into which said first and said second slots are formed.
Claim 5
Dependent Claim 47 words
An orthodontic appliance according to claim 2, wherein: said second slot is defined by two substantially parallel flat surfaces substantially normal to said side wall surfaces of said first slot and a cylindrically arcuate bottom wall surface substantially parallel to said side surfaces of said first slot.
Claim 6
Dependent Claim 29 words
An orthodontic appliance according to claim 3, wherein: said first slot is defined by two substantially parallel convex and concave side wall surfaces and an arcuate bottom wall surface.
Claim 7
Dependent Claim 52 words
An orthodontic appliance according to claim 3, wherein: said convex and concave side wall surfaces of said first slot are so arranged as to each be generated by a straight line generatrix moved substantially in parallel to an end surface of said bracket with which said bracket is attached to a tooth.
Claim 8
Dependent Claim 54 words
An orthodontic appliance according to claim 3, wherein: said convex and concave side wall surfaces of said first slot are so arranged as to each be generated by a straight line generatrix moved with a constant inclination relative to an end surface of said bracket with which said bracket is attached to a tooth.
Claim 9
Dependent Claim 32 words
An orthodontic appliance according to claim 3, wherein: said first slot is curved to be convex toward an end surface of said bracket with which said bracket is attached to a tooth.
Claim 10
Dependent Claim 32 words
An orthodontic appliance according to claim 3, wherein: said first slot is curved to be concave toward an end surface of said bracket with which said bracket is attached to a tooth.
Claim 11
Dependent Claim 273 words
An orthodontic appliance for applying forces to correct malocclusion of teeth, comprising: a generally U-shaped orthodontic arch wire bent to a predetermined curve for applying said corrective forces to selected teeth; a plurality of arch wire support brackets cooperating with and supporting in a predetermined manner said arch wire, each of said brackets being attachable to individual ones of said selected teeth on the lingual side thereof, a laterally central portion of a width of each of said brackets being substantially aligned with respect to a laterally central portion of said lingual side of said attached tooth; at least one of said brackets being formed with a curved first slot extending the full width thereof such that said first slot is defined by two substantially parallel surfaces curved to be concave toward an end surface of said bracket with said bracket attached to said tooth and an arcuate bottom wall surface substantially normal to said parallel curved surfaces, and formed also to have a curved second slot extending the full width thereof such that said second slot is defined by two substantially parallel planar surfaces oriented substantially parallel to said arcuate bottom surface of said first slot and a cylindrical curved surface substantially normal to said parallel planar surfaces; wherein said parallel curved surfaces of said first slot and said cylindrical curved surface of said second slot in each bracket are respectively curved to match the predetermined curvature of said arch wire so as to provide easy reception of said arch wire into that slot whose orientation best allows application of said corrective force to said tooth to which said bracket is attached.
Claim 12
Dependent Claim 273 words
An orthodontic appliance for applying forces to correct malocclusion of teeth, comprising: a generally U-shaped orthodontic arch wire bent to a predetermined curve for applying said corrective forces to selected teeth; a plurality of arch wire support brackets cooperating with and supporting in a predetermined manner said arch wire, each of said brackets being attachable to individual ones of said selected teeth on the lingual side thereof, a laterally central portion of a width of each of said brackets being substantially aligned with respect to a laterally central portion of said lingual side of said attached tooth; at least one of said brackets being formed with a curved first slot extending the full width thereof such that said first slot is defined by two substantially parallel surfaces curved to be concave toward an end surface of said bracket with said bracket attached to said tooth and an arcuate bottom wall surface substantially normal to said parallel curved surfaces, and formed also to have a curved second slot extending the full width thereof such that said second slot is defined by two substantially parallel planar surfaces oriented substantially parallel to said arcuate bottom surface of said first slot and a cylindrical curved surface substantially normal to said parallel planar surfaces; wherein said parallel curved surfaces of said first slot and said cylindrical curved surface of said second slot in each bracket are respectively curved to match the predetermined curvature of said arch wire so as to provide easy reception of said arch wire into that slot whose orientation best allows application of said corrective force to said tooth to which said bracket is attached.
Claim 13
Dependent Claim 49 words
An orthodontic appliance according to claim 9, wherein: said parallel curved surfaces of said first slot are so arranged as to each be generated by a straight line generatrix moved substantially in parallel to an end surface of said bracket with which said bracket is attached to a tooth.
Claim 14
Dependent Claim 51 words
An orthodontic appliance according to claim 9, wherein: said parallel curved surfaces of said first slot are so arranged as to each be generated by a straight line generatrix moved with a constant inclination relative to an end surface of said bracket with which said bracket is attached to a tooth.

References Cited (Backward Citations)

US3775850A Cited
US4209906A Cited
US4139945A Cited
US4355975A Cited
US4337037A Cited
US4354833A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-03-10 1989-09-09 1990-03-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-03-10 1993-09-09 1994-03-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-03-10 1997-09-09 1998-03-11 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag