Oxygen diffusive wound dressings and methods of manufacturing and use
First Claim
Patent Images
1. A wound dressing, comprising:
- a hydrophilic absorbent material;
a hydrophilic absorbent material envelope which defines an open area for contacting a wound site and which at least partially encloses the hydrophilic absorbent material; and
at least one conduit having an oxygen-diffusive coating and a lumen which allows diffusion of oxygen or oxygenated fluid along its length,wherein at least one area of the conduit is positioned to extend exposed along the open area in contact with the wound site and adjacent to the hydrophilic absorbent material such that the wound site and hydrophilic absorbent material are in fluid communication, and wherein the at least one conduit has at least one portion further exposed to ambient air.
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Abstract
Oxygen diffusive wound dressings and methods of manufacturing and use are described herein. The wound dressing may generally provide a ready supply of oxygen to a wound being treated via one or more oxygen conduits which are designed to pass oxygen from ambient air or other oxygen reservoirs into proximity to the wound, and may also provide for exudate removal through transecting channels in fluid communication with both the wound surface and a hydrophilic absorbent material.
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Citations
98 Claims
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1. A wound dressing, comprising:
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a hydrophilic absorbent material; a hydrophilic absorbent material envelope which defines an open area for contacting a wound site and which at least partially encloses the hydrophilic absorbent material; and at least one conduit having an oxygen-diffusive coating and a lumen which allows diffusion of oxygen or oxygenated fluid along its length, wherein at least one area of the conduit is positioned to extend exposed along the open area in contact with the wound site and adjacent to the hydrophilic absorbent material such that the wound site and hydrophilic absorbent material are in fluid communication, and wherein the at least one conduit has at least one portion further exposed to ambient air. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A wound dressing, comprising:
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a hydrophilic absorbent material; at least one conduit having an oxygen-diffusive coating and a lumen which allows diffusion of oxygen or oxygenated fluid along its length, wherein at least one area of the conduit is positioned to extend in contact with a wound surface and adjacent to the hydrophilic absorbent material such that the wound surface and hydrophilic absorbent material are in fluid communication, and wherein the at least one conduit has at least one portion further exposed to ambient air. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. A wound dressing, comprising:
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a hydrophilic absorbent material; at least one oxygen conductive hydrophobic conduit extending therethrough or adjacent therealong of the wound dressing; and a hydrophilic absorbent material envelope which defines an open area for contacting a wound site and which at least partially encloses the hydrophilic absorbent material, wherein at least a portion of the at least one oxygen conductive hydrophobic conduit is positioned to extend exposed along the open area in contact with the wound site and adjacent to the hydrophilic absorbent material such that the wound site and hydrophilic absorbent material are in fluid communication; and wherein at least one area or the at least one oxygen conductive hydrophobic conduit is in contact with ambient air and is permeable to oxygen. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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75. A wound dressing, comprising:
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at least one conduit having an oxygen-diffusive coating and a lumen which allows diffusion of oxygen or oxygenated fluid along its length, wherein the at least one conduit defines a wound contact region for contact with a wound surface and an oxygen absorption region which is configured to extend beyond the wound surface and is exposed to ambient air; and an adhesive border formed around a periphery of the wound dressing. - View Dependent Claims (76, 77, 78, 79, 80)
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81. A method of treating a wound, comprising:
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providing a wound dressing having a hydrophilic absorbent material, a hydrophilic absorbent material envelope which defines an open area for contacting a wound site and which at least partially encloses the hydrophilic absorbent material, and at least one conduit having an oxygen-diffusive coating; placing the open area upon the wound site such that the at least one conduit is in contact against the wound site and the wound site and hydrophilic absorbent material are in fluid communication; and diffusing oxygen from the at least one conduit and through the oxygen-diffusive coating to the wound site. - View Dependent Claims (82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98)
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Specification