US4167945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for enhancing the healing of grafted tissue
Assignee: Individual
•
Filing: 1977-12-05
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Granted: 1979-09-18
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Expires: 1997-12-05
Abstract
Abstract Method for grafting of a surface of donor tissue to a recipient tissue surface comprising the steps of coating freshly exposed recipient tissue surface with a composition consisting essentially of a connective tissue growth-promoting agent which is pulverized absorbable gelatin sponge, aminocaproic acid, compounds of the formula 4NH 2 CH 2 (CH 2 ) 4 COOX·CaX 2 wherein X is chloride or bromide or mixtures thereof. Donor tissue is then placed onto the recipient surface whereby said composition forms an interface between the donor tissue surface and the surface of the recipient tissue.
Inventors
- 👤 Sheldon K. Gottlieb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:09
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/60; A61F; A61F2/00; A61F2/02; A61F2/10; A61F2/105; A61K; A61K31/00; A61K31/185; A61K31/19; A61K31/195; A61K31/197; A61K35/00; A61K35/12; A61K35/14; A61K35/16; A61K38/00; A61K38/16; A61K38/17; A61K38/39; A61L15/00; A61L15/16; A61L15/22; A61L15/32; A61L15/40; A61L15/42; A61L15/425; A61L27/36; A61L27/3683; A61L27/3687
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
121 words
A method for the grafting of a surface of donor tissue to a recipient tissue surface comprising the steps of: coating freshly exposed recipient tissue surface with a composition consisting essentially of a connective tissue growth-promoting agent selected from the group consisting of: (1) pulverized absorbable gelatin sponge, (2) aminocaproic acid, (3) a compound of the formula 4NH 2 CH 2 (CH 2 ) 4 COOH·CaX 2 wherein X is chloride or bromide, or (4) mixtures thereof; and placing said donor tissue onto said recipient surface whereby said composition forms an interface between said donor tissue surface and said recipient tissue surface, and said composition promotes the build-up of new connective tissue thereby unifying more rapidly said donor and recipient tissues.
Claim 2
Independent Claim
121 words
A method for the grafting of a surface of donor tissue to a recipient tissue surface comprising the steps of: coating freshly exposed recipient tissue surface with a composition consisting essentially of a connective tissue growth-promoting agent selected from the group consisting of: (1) pulverized absorbable gelatin sponge, (2) aminocaproic acid, (3) a compound of the formula 4NH 2 CH 2 (CH 2 ) 4 COOH·CaX 2 wherein X is chloride or bromide, or (4) mixtures thereof; and placing said donor tissue onto said recipient surface whereby said composition forms an interface between said donor tissue surface and said recipient tissue surface, and said composition promotes the build-up of new connective tissue thereby unifying more rapidly said donor and recipient tissues.
Claim 3
Dependent Claim
26 words
The method of claim 1 wherein said composition further comprises plasma in an amount to provide sufficent fibrin to promote the build-up of new connective tissue.
Claim 4
Dependent Claim
29 words
The method of claim 2 wherein said composition contains from about 5 to 50 mg. of said pulverized absorbable gelatin sponge for each 0.3 to 0.5 cc of plasma.
Claim 5
Dependent Claim
26 words
The method of claim 2 wherein said composition contains from about 12.5 to 75 mg. of aminocaproic acid for each 0.3 to 0.5 cc. of plasma.
Claim 6
Dependent Claim
22 words
The method of claim 2 further comprising the step of initially forming a cavity having exposed surfaces to receive said donor tissue.
Claim 7
Dependent Claim
29 words
The method of claim 5 comprising forming a circular cavity having a diameter of about 3 mm. to 5 mm. and a depth of up to about 10 mm.
Claim 8
Dependent Claim
33 words
The method of claim 6 wherein said composition contains from about 5 to 50 mg. of said pulverized absorbable gelatin sponge for each 0.3 to 0.5 cc. of plasma introduced into said cavity.
Claim 9
Dependent Claim
33 words
The method of claim 7 comprising coating the exposed surfaces of said cavity with said composition in an amount sufficient to provide a coating thickness of between about 1 mm. and 5 mm.
Claim 10
Dependent Claim
32 words
The method of claim 7 wherein said composition further comprises between about 5 and 50 mg. of finely divided collagen for each 0.3 to 0.5 cc. of plasma introduced into said cavity.
Claim 11
Dependent Claim
25 words
The method of claim 2 wherein said donor tissue is a pinch graft and the recipient tissue surface is the exposed surface of an ulcer.
Claim 12
Dependent Claim
16 words
The method of claim 2 wherein said donor tissue is a punch graft of donor scalp.
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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) | 1982-09-17 | 1983-03-19 | 1983-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-17 | 1987-03-19 | 1987-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-17 | 1991-03-19 | 1991-09-18 | $7700.00 | Window Closed / Lapsed |