Patent US4815972A successfully refreshed from Google Patents.
US4815972A
Expired / Lapsed
US
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Dental intrusion device
Assignee: Individual
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Filing: 1986-11-06
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Granted: 1989-03-28
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Expires: 2006-11-06
Abstract
Abstract A dental intrusion device for intruding one or more teeth of a dental arch. Plural embodiments of the device are disclosed within the generic context of an intra-oral structure operatively related to the arch, an extra-oral structure, and a force-creating mechanism extending between the intra- and extra-oral structures. The co-action of these components results in intrusion forces being developed on teeth which are to be intruded. Various features within the generic aspect of the invention relate to particular forms of force-applying mechanism, particular forms of intra-oral structures and particular forms of extra-oral structures.
Inventors
- 👤 Raymond P. Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:40
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/06; A61C7/065; A61C7/36
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
145 words
A dental intrusion device for performing intrusion of one or more teeth of a dental arch into the gingiva comprising intra-oral means for mesio-distally spanning at least a portion of the dental arch and for joining certain of the teeth so spanned including at least those teeth which are to be intruded, force-creating means extending from said intra-oral means to an extra-oral means and acting in the same sense as the direction of intrusion, the force developed by said force-creating means being reacted by said extra-oral means and said intra-oral means in a manner causing intrusion forces to be developed on those teeth of the arch which are to be intruded, in which said intra-oral means is adapted for acting on teeth of the lower arch, and said extra-oral means comprises chin-engaging means, said force-creating means extending between said chin-engaging means and said intra-oral means.
Claim 2
Dependent Claim
145 words
A dental intrusion device for performing intrusion of one or more teeth of a dental arch into the gingiva comprising intra-oral means for mesio-distally spanning at least a portion of the dental arch and for joining certain of the teeth so spanned including at least those teeth which are to be intruded, force-creating means extending from said intra-oral means to an extra-oral means and acting in the same sense as the direction of intrusion, the force developed by said force-creating means being reacted by said extra-oral means and said intra-oral means in a manner causing intrusion forces to be developed on those teeth of the arch which are to be intruded, in which said intra-oral means is adapted for acting on teeth of the lower arch, and said extra-oral means comprises chin-engaging means, said force-creating means extending between said chin-engaging means and said intra-oral means.
Claim 3
Dependent Claim
53 words
A device as set forth in claim 1 in which said chin-engaging means comprises a chin cup, and said force-creating means comprises a face bow which extends into intra-oral connection with said intra-oral means and which has external limbs, and means connecting the external limbs of the face bow with the chin cup.
Claim 4
Dependent Claim
32 words
A device as set forth in claim 1 in which said force-creating means comprises telescopically engaged members and resilient means urging the telescopically engaged members in a sense of increasing telescopic engagement.
Claim 5
Dependent Claim
32 words
A device as set forth in claim 3 in which said resilient means comprises a rubber band which is in tension between the telescopically engaged members urging them toward increasing telescopic engagement.
Claim 6
Dependent Claim
68 words
A device as set forth in claim 4 in which said members comprise telescopically engaged tubes with openings at selected portions of their respective walls, said rubber band having a medial portion disposed within the telescopically engaged tubes and end portions exiting the respective tubes via their respective openings and means for anchoring respective end portions of the rubber bands on respective ones of the telescopically engaged tubes.
Claim 7
Dependent Claim
33 words
A device as set forth in claim 4 including hooks on the exterior of the telescopically engaged members and in which said resilient means comprises an endless rubber band passing around the hooks.
Claim 8
Dependent Claim
34 words
A device as set forth in claim 6 in which one of said hooks is formed in a wire which extends from a corresponding one of said telescopically engaged members to said chin-engaging means.
Claim 9
Dependent Claim
43 words
A device as set forth in claim 3 in which said resilient means comprises a helical coil spring disposed internally of one of said members and having respective points of anchoring on said one member and on the other of said members respectively.
Claim 10
Dependent Claim
42 words
A device as set forth in claim 3 in which one of said telescopically engaged members comprises an integral loop exterior of that member's telescopic engagement with the other member, said integral loop providing a point of anchoring for said resilient means.
Claim 11
Dependent Claim
35 words
A device as set forth in claim 3 in which the connection of said force-creating means to said intra-oral means comprises a separable connection between one of said telescopically engaged members and said intra-oral means.
Claim 12
Dependent Claim
37 words
A device as set forth in claim 10 in which the separable connection is provided by a downwardly facing fork on said one member, said intra-oral means comprising a wire which is separably engaged by said fork.
Claim 13
Dependent Claim
39 words
A device as set forth in claim 10 in which the separable connection of said one member to said intra-oral means comprises a bend formed in an end portion of said one member to have a downwardly open throat.
Claim 14
Dependent Claim
22 words
A device as set forth in claim 3 in which said force-creating means is disposed in a medial plane through the arch.
Claim 15
Dependent Claim
39 words
A device as set forth in claim 13 including means extending from one of said members to respective sides of the medial plane for connection with said intra-oral means at locations disposed on opposite sides of the medial plane.
Claim 16
Dependent Claim
31 words
A device as set forth in claim 3 comprising two such pairs of telescopically engaged members, each pair being disposed to a corresponding side of a medial plane through the arch.
Claim 17
Dependent Claim
27 words
A device as set forth in claim 15 in which said two pairs of telescopically engaged members each has its own separable connection with said intra-oral means.
Claim 18
Dependent Claim
47 words
A device as set forth in claim 1 in which said chin-engaging means comprises a pad having a body and a wire having a medial portion embedded within said body, said wire having an external portion which projects anteriorly of the body and supports said force-creating means.
Claim 19
Dependent Claim
35 words
A device as set forth in claim 17 in which said wire comprises two external portions which project from said body at locations disposed on respective opposite sides of a medial plane through the arch.
Claim 20
Dependent Claim
30 words
A device as set forth in claim 1 in which said intra-oral means comprises a wire spanning the arch and connected to molar brackets on opposite sides of the arch.
Claim 21
Dependent Claim
40 words
A device as set forth in claim 19 including hooks on said wire disposed mesial of the molar brackets, said hooks hooking onto said wire in mesially spaced relation to the point of connection of the wire to the brackets.
Claim 22
Dependent Claim
28 words
A device as set forth in claim 19 in which said intra-oral means comprises a fine arch wire which attaches to selected teeth of the arch via brackets.
Claim 23
Dependent Claim
38 words
A device as set forth in claim 19 in which said intra-oral means comprises a splint which fits onto the arch through tooth positioner material and tubes into which the distal end portions of the wire are inserted.
Claim 24
Dependent Claim
34 words
A device as set forth in claim 19 in which said wire includes snap catches at its distal end portions for releasably connecting the distal end portions with buccal tubes on the molar brackets.
Claim 25
Dependent Claim
44 words
A device as set forth in claim 23 in which said snap catches comprise sleeves fitting onto the wire and elongate resilient elements extending distally from the respective sleeves and terminating in hooked ends for hooking behind the buccal tubes on the molar brackets.
Claim 26
Dependent Claim
32 words
A device as set forth in claim 19 in which said wire connects to a molar bracket via an adapter tube which is separably attached to buccal tubes on the molar bracket.
Claim 27
Dependent Claim
29 words
A device as set forth in claim 25 in which said adapter tube is separably attached to the buccal tubes on the molar bracket by its own U-shaped wire.
Claim 28
Dependent Claim
17 words
A device as set forth in claim 26 including a further tube disposed on said U-shaped wire.
Claim 29
Dependent Claim
47 words
A device as set forth in claim 1 in which a face bow extends from said intra-oral means to said force-creating means, and said face bow has the free ends of its limbs configured so as to be distally inserted into buccal tubes on said intra-oral means.
Claim 30
Dependent Claim
56 words
A device as set forth in claim 1 in which said intra-oral means comprises caps for fitting onto molar teeth, a Crozat extension from said caps for fitting onto incisors, and a wire extending from said caps, said force-creating means acting on said wire for causing tooth intrusion forces to be developed in said Crozat extension.
Claim 31
Dependent Claim
131 words
Means for adapting a molar bracket having a pair of buccal tubes comprising an adapter element in the form of a U-shaped wire having a base and a pair of sides extending from the base, one of said sides fitting into one of the two buccal tubes of the molar bracket and the other of said sides being disposed in supported relationship on the other tube of the molar bracket, a further tube supported on the U-shaped wire externally of said buccal tubes and said other side including at its free end a bend which, when the adapter is assembled to the buccal tubes, is disposed mesially beyond the mesial end of the other buccal tube so as to be in an interference relationship with attempted distal displacement of the adapter.
Claim 32
Dependent Claim
131 words
Means for adapting a molar bracket having a pair of buccal tubes comprising an adapter element in the form of a U-shaped wire having a base and a pair of sides extending from the base, one of said sides fitting into one of the two buccal tubes of the molar bracket and the other of said sides being disposed in supported relationship on the other tube of the molar bracket, a further tube supported on the U-shaped wire externally of said buccal tubes and said other side including at its free end a bend which, when the adapter is assembled to the buccal tubes, is disposed mesially beyond the mesial end of the other buccal tube so as to be in an interference relationship with attempted distal displacement of the adapter.
Claim 33
Dependent Claim
16 words
Means as set forth in claim 30 including a second tube disposed on said U-shaped wire.
Claim 34
Dependent Claim
21 words
Means as set forth in claim 30 including on said wire a further side which fits into said other buccal tube.
Claim 35
Dependent Claim
73 words
In an orthodontic appliance having a face bow whose limbs are inserted into buccal tubes, the improvement which comprises the free end of at least one of the face bow's limbs comprising a segment which parallels and is exterior to the corresponding tube, a reverse bend at the distal end of said segment, and a mesially extending segment extending from said reverse bend removably engaged in the distal end of the corresponding tube.
Claim 36
Dependent Claim
73 words
In an orthodontic appliance having a face bow whose limbs are inserted into buccal tubes, the improvement which comprises the free end of at least one of the face bow's limbs comprising a segment which parallels and is exterior to the corresponding tube, a reverse bend at the distal end of said segment, and a mesially extending segment extending from said reverse bend removably engaged in the distal end of the corresponding tube.
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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) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |