Patent US5447435A successfully refreshed from Google Patents.
US5447435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the reconstruction of teeth
Assignee: Biomet 3I LLC
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Filing: 1994-06-06
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Granted: 1995-09-05
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Expires: 2014-06-06
Abstract
Abstract In a device for the reconstruction of missing or lost teeth, an implant, which ends in the gingival region, is biologically anchored in a jawbone. The implant itself comprises an implant body anchored in the jawbone and an implant head on the gingival aspect, acting as the anchoring site for an abutment, which in turn forms the reception site for the tooth being reconstructed. The abutment represents the retention shape of the tooth being reconstructed.
Inventors
- 👤 Urs Brodbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:35
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0048; A61C8/005; A61C8/006; A61C8/0068
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
162 words
A device for the reconstruction of missing or lost teeth, comprising: an implant body; means for anchoring the body in a jawbone; an implant head on the body; an abutment; means for securing the abutment to the body, the abutment being non-rotatable relative to the implant head; a detachable prosthesis tooth having a base and a cavity; and the abutment including a tubular portion received in the cavity in the tooth, the tubular portion being substantially the same height as a central portion of the tooth, the abutment having a sheath formed on an exterior of the tubular portion, the sheath forming an abutment face spaced from the securing means, a size of an exposed portion of the sheath below the abutment face being larger than an exposed portion of the tubular portion below the abutment face, the detachable tooth cavity having a length corresponding to the length of the tubular portion, the base of the detachable tooth engaging the abutment face.
Claim 2
Independent Claim
162 words
A device for the reconstruction of missing or lost teeth, comprising: an implant body; means for anchoring the body in a jawbone; an implant head on the body; an abutment; means for securing the abutment to the body, the abutment being non-rotatable relative to the implant head; a detachable prosthesis tooth having a base and a cavity; and the abutment including a tubular portion received in the cavity in the tooth, the tubular portion being substantially the same height as a central portion of the tooth, the abutment having a sheath formed on an exterior of the tubular portion, the sheath forming an abutment face spaced from the securing means, a size of an exposed portion of the sheath below the abutment face being larger than an exposed portion of the tubular portion below the abutment face, the detachable tooth cavity having a length corresponding to the length of the tubular portion, the base of the detachable tooth engaging the abutment face.
Claim 3
Dependent Claim
25 words
The device as claimed in claim 1, wherein the abutment, as a retention form of the tooth being reconstructed, is made individually for a patient.
Claim 4
Dependent Claim
14 words
The device as claimed in claim 1, wherein the abutment includes a metallic material.
Claim 5
Dependent Claim
14 words
The device as claimed in claim 1, wherein the abutment includes a ceramic material.
Claim 6
Dependent Claim
14 words
The device as claimed in claim 1, wherein the abutment includes a non-metallic material.
Claim 7
Dependent Claim
16 words
The device as claimed in claim 1, wherein the sheath is formed of a tooth-colored material.
Claim 8
Independent Claim
168 words
A device for the reconstruction of a missing or lost tooth, comprising: an implant body, the implant body including means for anchoring the implant body in a jawbone; an abutment, the abutment having a core, the core having a narrow cylindrical upper portion, an enlarged bottom portion, and a curved transition cuff between a tubular portion and the bottom portion, and a sheath attached around the cylindrical portion and the transition cuff; means for non-rotatably anchoring the abutment to a top end of the implant body; a prosthesis tooth, the tooth having a bottom end and a cavity extending into the tooth from the bottom end for receiving a portion of the abutment, the bottom end of the tooth being spaced from the transition cuff, a distance between the bottom end of the tooth and the transition cuff being greater than a distance between the transition cuff and a bottom end of the abutment; and means for securing the tooth to the abutment, wherein the core is metallic.
Claim 9
Independent Claim
168 words
A device for the reconstruction of a missing or lost tooth, comprising: an implant body, the implant body including means for anchoring the implant body in a jawbone; an abutment, the abutment having a core, the core having a narrow cylindrical upper portion, an enlarged bottom portion, and a curved transition cuff between a tubular portion and the bottom portion, and a sheath attached around the cylindrical portion and the transition cuff; means for non-rotatably anchoring the abutment to a top end of the implant body; a prosthesis tooth, the tooth having a bottom end and a cavity extending into the tooth from the bottom end for receiving a portion of the abutment, the bottom end of the tooth being spaced from the transition cuff, a distance between the bottom end of the tooth and the transition cuff being greater than a distance between the transition cuff and a bottom end of the abutment; and means for securing the tooth to the abutment, wherein the core is metallic.
Claim 10
Dependent Claim
12 words
A device as claimed in claim 7, wherein the sheath is ceramic.
Claim 11
Dependent Claim
12 words
A device as claimed in claim 7, wherein the sheath is tooth-colored.
Claim 12
Dependent Claim
39 words
A device as claimed in claim 7, wherein the sheath is further attached around the bottom portion of the core and extends an entire distance between a bottom end of the tooth and a bottom end of the abutment.
Claim 13
Independent Claim
195 words
A device for the reconstruction of a missing or lost tooth, comprising: an implant body, the implant body including means for anchoring the implant body in a jawbone; an abutment, the abutment having a core, the core having a narrow cylindrical upper portion, an enlarged bottom portion, and a curved transition cuff between a tubular portion and the bottom portion, and a sheath attached around the cylindrical portion and the transition cuff; means for non-rotatably anchoring the abutment to a top end of the implant body; a prosthesis tooth, the tooth having a bottom end and a cavity extending into the tooth from the bottom end for receiving a portion of the abutment, the bottom end of the tooth being spaced from the transition cuff, a distance between the bottom end of the tooth and the transition cuff being greater than a distance between the transition cuff and a bottom end of the abutment; and means for securing the tooth to the abutment, wherein the sheath is further attached around the bottom portion of the core and extends an entire distance between a bottom end of the tooth and a bottom end of the abutment.
Claim 14
Independent Claim
195 words
A device for the reconstruction of a missing or lost tooth, comprising: an implant body, the implant body including means for anchoring the implant body in a jawbone; an abutment, the abutment having a core, the core having a narrow cylindrical upper portion, an enlarged bottom portion, and a curved transition cuff between a tubular portion and the bottom portion, and a sheath attached around the cylindrical portion and the transition cuff; means for non-rotatably anchoring the abutment to a top end of the implant body; a prosthesis tooth, the tooth having a bottom end and a cavity extending into the tooth from the bottom end for receiving a portion of the abutment, the bottom end of the tooth being spaced from the transition cuff, a distance between the bottom end of the tooth and the transition cuff being greater than a distance between the transition cuff and a bottom end of the abutment; and means for securing the tooth to the abutment, wherein the sheath is further attached around the bottom portion of the core and extends an entire distance between a bottom end of the tooth and a bottom end of the abutment.
Claim 15
Dependent Claim
12 words
A device as claimed in claim 11, wherein the sheath is ceramic.
Claim 16
Dependent Claim
12 words
A device as claimed in claim 11, wherein the sheath is tooth-colored.
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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) | 1998-09-04 | 1999-03-06 | 1999-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-04 | 2003-03-06 | 2003-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-04 | 2007-03-06 | 2007-09-05 | $7700.00 | Window Closed / Lapsed |