Composite wound dressing
First Claim
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1. A composite wound-dressing which is a sheet material, comprising:
- (a) a polytetrafluoroethylene fibril matrix,(b) 0.5 to 10 parts of hydrophilic absorptive particles per part of PTFE by weight enmeshed in said matrix, the absorptive particles having absorptive capacity greater than 0.5 grams of water per gram of dry particles, and(c) a partially occlusive film coated on one surface of said matrix,wherein substantially all of said hydrophilic absorptive particles are unavailable for sloughing.
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Abstract
A composite wound dressing, optionally having controlled permeability, is highly absorbent toward blood and exudate and comprises a polytetrafluoroethylene fibril matrix, hydrophilic absorptive particles enmeshed in the matrix, and, optionally, a partially occlusive film coated on one surface of the matrix.
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Citations
18 Claims
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1. A composite wound-dressing which is a sheet material, comprising:
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(a) a polytetrafluoroethylene fibril matrix, (b) 0.5 to 10 parts of hydrophilic absorptive particles per part of PTFE by weight enmeshed in said matrix, the absorptive particles having absorptive capacity greater than 0.5 grams of water per gram of dry particles, and (c) a partially occlusive film coated on one surface of said matrix, wherein substantially all of said hydrophilic absorptive particles are unavailable for sloughing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of treating a wound comprising applying to said wound a composite wound-dressing which is a sheet material comprising:
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(a) a polytetrafluoroethylene fibril matrix; and (b) 0.5 to 10 parts of hydrophilic absorptive particles per part of PTFE by weight enmeshed in said matrix, the absorptive particles having absorptive capacity greater than 0.5 grams of water per gram of dry particles, wherein substantially all of said hydrophilic absorptive particles are unavailable for sloughing. - View Dependent Claims (17, 18)
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Specification