Antimicrobial Foam Compositions, Articles and Methods
First Claim
1. An article comprising:
- at least one layer of foam, the foam layer and at least one antimicrobial agent associated with foam layer, the antimicrobial agent comprising PHMB, PEHMB, or derivatives thereof;
at least one non-adherent layer disposed on at least a portion of the foam layer, the non-adherent layer being permeable to moisture; and
a film disposed on at least another portion of the foam layer, the film being breathable to allow escape of moisture, but substantially impermeable to bacteria.
2 Assignments
0 Petitions
Accused Products
Abstract
Articles may be formed including: at least one layer of foam, the foam layer and at least one antimicrobial agent associated with foam layer, the antimicrobial agent including PHMB, PEHMB, or derivatives thereof; at least one non-adherent layer disposed on at least a portion of the foam layer, the non-adherent layer being permeable to moisture; and a film disposed on at least another portion of the foam layer, the film being breathable to allow escape of moisture, but substantially impermeable to bacteria. Another article may include at least one layer of foam, the foam having pores of different sizes, at least some of the pores at least partially filled with at least one elutable antimicrobial agent, the pores of different sizes forming a gradient with the foam layer. Yet another article may include a foam matrix and a plurality of dissolvable members disposed with the foam matrix, at least one antimicrobial agents associated with the dissolvable members such that upon dissolution thereof the antimicrobial agent is eluted and pores or voids are created in the foam matrix. Wound dressings formed from the above articles are also described.
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Citations
28 Claims
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1. An article comprising:
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at least one layer of foam, the foam layer and at least one antimicrobial agent associated with foam layer, the antimicrobial agent comprising PHMB, PEHMB, or derivatives thereof; at least one non-adherent layer disposed on at least a portion of the foam layer, the non-adherent layer being permeable to moisture; and a film disposed on at least another portion of the foam layer, the film being breathable to allow escape of moisture, but substantially impermeable to bacteria. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. An article comprising at least one layer of foam, the foam comprising pores of different sizes, at least some of the pores at least partially filled with at least one elutable antimicrobial agent, the pores of different sizes forming a gradient with the foam layer.
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24. An article comprising:
- a foam matrix and a plurality of dissolvable members disposed with the foam matrix, at least one antimicrobial agents associated with the dissolvable members such that upon dissolution thereof the antimicrobial agent is eluted and pores or voids are created in the foam matrix.
- View Dependent Claims (25, 26, 27, 28)
Specification