US4265233A
Expired / Lapsed
US
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Material for wound healing
Assignee: Unitika Ltd
•
Filing: 1979-04-06
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Granted: 1981-05-05
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Expires: 1999-04-06
Abstract
Abstract A wound healing material having blood coagulation Factor XIII fixed thereto. This material promotes the formation of stabilized fibrin at a wound site and is effective for a long period of time, thereby protecting the wound and promoting its healing.
Inventors
- 👤 Akio Sugitachi
- 👤 Kunihiko Takagi
- 👤 Yasunori Yabushita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:55
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/44; A61L15/64; A61L17/00; A61L17/005; A61L2300/00; A61L2300/40; A61L2300/404; A61L2300/418; A61L2300/45; A61L2400/00; A61L2400/04
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
42 words
A wound healing material capable of effectively promoting the formation of stabilized fibrin at a wound site over a long period of time, said material comprising a structure having a substance fixed thereto, said substance consisting essentially of blood coagulation Factor XIII.
Claim 2
Dependent Claim
42 words
A wound healing material capable of effectively promoting the formation of stabilized fibrin at a wound site over a long period of time, said material comprising a structure having a substance fixed thereto, said substance consisting essentially of blood coagulation Factor XIII.
Claim 3
Dependent Claim
13 words
The healing material of claim 1, wherein the structure is an absorbable material.
Claim 4
Dependent Claim
12 words
The healing material of claim 2, wherein the absorbable material is gelatin.
Claim 5
Dependent Claim
12 words
The healing material of claim 2, wherein the absorbable material is collagen.
Claim 6
Dependent Claim
13 words
The healing material of claim 2, wherein the absorbable material is polyglycolic acid.
Claim 7
Dependent Claim
13 words
The healing material of claim 2, wherein the absorbable material is polylactic acid.
Claim 8
Dependent Claim
23 words
The healing material of claim 1, wherein said Factor XIII is fixed in an amount sufficient to promote the formation of stabilized fibrin.
Claim 9
Dependent Claim
44 words
A wound healing material capable of effectively promoting the formation of stabilized fibrin at a wound site over a long period of time, said material comprising a structure having a substance fixed thereto, said substance consisting essentially of blood coagulation Factor XIII and thrombin.
Claim 10
Dependent Claim
44 words
A wound healing material capable of effectively promoting the formation of stabilized fibrin at a wound site over a long period of time, said material comprising a structure having a substance fixed thereto, said substance consisting essentially of blood coagulation Factor XIII and thrombin.
Claim 11
Dependent Claim
13 words
The healing material of claim 8, wherein the structure is an absorbable material.
Claim 12
Dependent Claim
12 words
The healing material of claim 9, wherein the absorbable material is gelatin.
Claim 13
Dependent Claim
12 words
The healing material of claim 9, wherein the absorbable material is collagen.
Claim 14
Dependent Claim
13 words
The healing material of claim 9, wherein the absorbable material is polyglycolic acid.
Claim 15
Dependent Claim
13 words
The healing material of claim 9, wherein the absorbable material is polylactic acid.
Claim 16
Dependent Claim
24 words
The healing material of claim 8, wherein said Factor XIII and thrombin are fixed in amounts sufficient to promote the formation of stabilized fibrin.
Claim 17
Dependent Claim
17 words
The healing material of claims 1 or 8, wherein calcium ion is additionally fixed to the structure.
Claim 18
Dependent Claim
17 words
The healing material of claims 1 or 8, wherein a pharmaceutical is additionally fixed to the structure.
Claim 19
Dependent Claim
22 words
The healing material of claim 16, wherein said pharmaceutical is selected from the group consisting of antiplasmins, antibiotics, antivirals, sulfanamides and anti-infectives.
Claim 20
Dependent Claim
26 words
The healing material of claim 1 or 8, wherein said structure is in the form of a mono-filament, a fibrous assembly, a film, or a sponge.
Claim 21
Dependent Claim
16 words
The healing material of claim 1 or 8, wherein said healing material is a surgical suture.
Claim 22
Dependent Claim
15 words
The healing material of claim 1 or 8, wherein said healing material is a dressing.
Claim 23
Dependent Claim
15 words
The healing material of claim 1 or 8, wherein said healing material is a bandage.
Claim 24
Dependent Claim
15 words
The healing material of claim 1 or 8, wherein said healing material is a sponge.
Claim 25
Dependent Claim
20 words
The healing material of claim 1 or 8, wherein said healing material is a filling for a tooth extracted cavity.
Claim 26
Dependent Claim
16 words
The healing material of claim 2 or 9, wherein said healing material is a gelatin sponge.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |