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Patent US4306552A successfully refreshed from Google Patents.
US4306552A
Expired / Lapsed
US
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Plasticized poly-ε-caprolactone film
Assignee: United States Department of the Navy
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Filing: 1980-08-12
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Granted: 1981-12-22
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Expires: 2000-08-12
Abstract
Abstract A wound dressing for burn patients comprises a two layer compress made of ly-ε-caprolactone material. One layer is configured for optimum wound contact while the other is configured for moisture control.
Inventors
- 👤 John B. Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:57
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/01; A61F13/01008; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/26; A61F13/15; A61F13/53; A61F13/534; A61F13/539; A61F2013/00089; A61F2013/00157; A61F2013/00361; A61F2013/00365; A61F2013/00519; A61F2013/530802; A61F2013/53445; A61F2013/53908
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
55 words
A laminate for wound dressing including a first layer of structural poly-ε-caprolactone for contacting living tissue; and a second layer of a poly-ε-caprolactone film bonded to said first layer for support thereof and control of flow of fluids therethrough and including a plasticizer to ensure a predetermined flexibility for permitting conformation to patient body contours.
Claim 2
Dependent Claim
55 words
A laminate for wound dressing including a first layer of structural poly-ε-caprolactone for contacting living tissue; and a second layer of a poly-ε-caprolactone film bonded to said first layer for support thereof and control of flow of fluids therethrough and including a plasticizer to ensure a predetermined flexibility for permitting conformation to patient body contours.
Claim 3
Dependent Claim
11 words
A laminate according to claim 1 wherein said plasticizer is triacetin.
Claim 4
Dependent Claim
11 words
A laminate according to claim 1 wherein said plasticizer is triethylcitrate.
Claim 5
Dependent Claim
16 words
A laminate according to claim 1 wherein said plasticizer is a mixture of triethylcitrate and triacetin.
Claim 6
Dependent Claim
29 words
A laminate according to claim 1 wherein said first layer is configured to provide a predetermined contact for promoting skin growth at the junction of contact with the patient.
Claim 7
Dependent Claim
16 words
A laminate according to claim 5 wherein said first layer is configured as a velvet material.
Claim 8
Dependent Claim
15 words
A laminate according to claim 5 wherein said first layer is configured as a foam.
Claim 9
Dependent Claim
16 words
A laminate according to claim 5 wherein said first layer is configured as a knitted fabric.
Claim 10
Dependent Claim
21 words
A laminate according to claim 1 wherein said first and second layers are bonded by a self-welding of the two layers.
Claim 11
Dependent Claim
16 words
A laminate according to claim 2 wherein said first layer is configured as a velvet material.
Claim 12
Dependent Claim
16 words
A laminate according to claim 3 wherein said first layer is configured as a velvet material.
Claim 13
Dependent Claim
16 words
A laminate according to claim 4 wherein said first layer is configured as a velvet material.
Claim 14
Dependent Claim
15 words
A laminate according to claim 2 wherein said first layer is configured as a foam.
Claim 15
Dependent Claim
15 words
A laminate according to claim 3 wherein said first layer is configured as a foam.
Claim 16
Dependent Claim
15 words
A laminate according to claim 4 wherein said first layer is configured as a foam.
Claim 17
Dependent Claim
16 words
A laminate according to claim 2 wherein said first layer is configured as a knitted fabric.
Claim 18
Dependent Claim
16 words
A laminate according to claim 3 wherein said first layer is configured as a knitted fabric.
Claim 19
Dependent Claim
16 words
A laminate according to claim 4 wherein said first layer is configured as a knitted fabric.
Claim 20
Dependent Claim
14 words
A laminate according to claim 2 wherein said first layer is a cut plush.
Claim 21
Dependent Claim
14 words
A laminate according to claim 3 wherein said first layer is a cut plush.
Claim 22
Dependent Claim
14 words
A laminate according to claim 4 wherein said first layer is a cut plush.
Claim 23
Dependent Claim
14 words
A laminate according to claim 5 wherein said first layer is a cut plush.
Claim 24
Dependent Claim
73 words
A laminate for the promotion of skin growth comprising: a first layer configured to contact a body portion of a patient and to promote the growth of skin and formed of a plasticized layer of poly-ε-caprolactone; and a second layer of plasticized poly-ε-caprolactone self welded to said first layer and configured for supporting said layer in conformation to the body portion of said patient contacted thereby and for controlling the fluid flow therethrough.
Claim 25
Dependent Claim
73 words
A laminate for the promotion of skin growth comprising: a first layer configured to contact a body portion of a patient and to promote the growth of skin and formed of a plasticized layer of poly-ε-caprolactone; and a second layer of plasticized poly-ε-caprolactone self welded to said first layer and configured for supporting said layer in conformation to the body portion of said patient contacted thereby and for controlling the fluid flow therethrough.
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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) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |