US5292253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for repairing tooth and bone tissue
Assignee: Laser Medical Technology Inc
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Filing: 1992-06-22
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Granted: 1994-03-08
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Expires: 2012-06-22
Abstract
Abstract An opening in bone or tooth tissue is repaired by at least partially filling the opening with a calcium-containing material in a moldable state and a protein gel; and applying to the gel laser radiation in a manner to weld that material to one of the bone or tooth tissue adjacent the opening and the calcium-containing material without causing harmful side effects to the bone or tooth tissue.
Inventors
- 👤 Guy Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:37
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/00491; A61C; A61C19/00; A61C19/003; A61C5/00; A61B17/56; A61B17/58; A61B18/00; A61B18/18; A61B18/20; A61B2017/00495; A61B2017/005; A61C1/00; A61C1/0046
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
A method for repairing an opening in bone or tooth tissue comprising: at least partially filling the opening with a calcium-containing material in a moldable state and a protein gel; and applying to the gel laser radiation in a manner to weld the gel to one of the bone or tooth tissue adjacent the opening and the calcium-containing material without causing harmful side effects to the bone or tooth tissue.
Claim 2
Independent Claim
70 words
A method for repairing an opening in bone or tooth tissue comprising: at least partially filling the opening with a calcium-containing material in a moldable state and a protein gel; and applying to the gel laser radiation in a manner to weld the gel to one of the bone or tooth tissue adjacent the opening and the calcium-containing material without causing harmful side effects to the bone or tooth tissue.
Claim 3
Dependent Claim
37 words
A method as defined in claim 1 wherein said step of filling comprises: forming a mixture of the gel and the calcium-containing material; and depositing successive layers of the mixture to at least partially fill the opening.
Claim 4
Dependent Claim
25 words
A method as defined in claim 2 wherein said step of applying laser radiation is performed to apply laser radiation after deposition of each layer.
Claim 5
Dependent Claim
70 words
A method as defined in claim 3 wherein the bone or tooth tissue is normally covered by a layer of soft tissue, and further comprising, after completion of said steps of filling and applying, depositing a layer of protein gel on the last layer of the mixture, covering the protein gel layer with the soft tissue, and applying laser radiation to weld the protein gel layer to the soft tissue.
Claim 6
Dependent Claim
36 words
A method as defined in claim 4 wherein the calcium-containing material is at least one of hydroxyapatite and a calcium phosphate, and the protein gel is at least one of fibrin, collagen, gelatin, plasmin and plasma.
Claim 7
Dependent Claim
36 words
A method as defined in claim 1 wherein said step of filling comprises: placing a mass of the calcium-containing material in the opening; and covering the mass of material with a layer of the protein gel.
Claim 8
Dependent Claim
70 words
A method as defined in claim 6 wherein the bone or tooth tissue is normally covered by a layer of soft tissue, and further comprising, after completion of said steps of filling and applying, depositing a layer of protein gel on the last layer of the mixture, covering the protein gel layer with the soft tissue, and applying laser radiation to weld the protein gel layer to the soft tissue.
Claim 9
Dependent Claim
36 words
A method as defined in claim 7 wherein the calcium-containing material is at least one of hydroxyapatite and a calcium phosphate, and the protein gel is at least one of fibrin, collagen, gelatin, plasmin and plasma.
Claim 10
Dependent Claim
22 words
A method as defined in claim 1 wherein the opening being repaired is one which was created in bone by periodontal disease.
Claim 11
Dependent Claim
18 words
A method as defined in claim 1 wherein the opening is constituted by a crack in a tooth.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1997-03-07 | 1997-09-06 | 1998-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-07 | 2001-09-06 | 2002-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-07 | 2005-09-06 | 2006-03-08 | $7700.00 | Window Closed / Lapsed |