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 the at least one area of the conduit is positioned to extend exposed along the open area in contact with the wound surface and adjacent to the fluid absorbent material such that the wound surface and hydrophilic absorbent material are in fluid communication, and wherein the at least one channel has at least one portion further exposed to ambient air.
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Accused Products
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
164 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 the at least one area of the conduit is positioned to extend exposed along the open area in contact with the wound surface and adjacent to the fluid absorbent material such that the wound surface and hydrophilic absorbent material are in fluid communication, and wherein the at least one channel 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; a vapor barrier 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 the at least one area of the conduit is positioned to extend exposed along the open area in contact with the wound surface and adjacent to the fluid absorbent material such that the wound surface and hydrophilic absorbent material are in fluid communication, and wherein the at least one channel is in fluid communication with an oxygen reservoir. - 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, 75, 76, 77)
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78. A wound dressing, comprising:
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a hydrophilic absorbent material; at least one oxygen conductive hydrophobic conduit extending therethrough or adjacent therealong; 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 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 area of the at least one oxygen conductive conduit is in contact with ambient air and is permeable to oxygen. - View Dependent Claims (79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100)
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101. A wound dressing, comprising:
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a hydrophilic absorbent material; at least one oxygen conductive hydrophobic conduit extending therethrough or adjacent therealong; 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 the at least one oxygen conductive hydrophobic conduit is positioned to extend exposed along the open area in contact with the wound surface and adjacent to the fluid absorbent material such that the wound surface and hydrophilic absorbent material are in fluid communication, and wherein the at least one oxygen conductive conduit is fluidly coupled to an oxygen reservoir. - View Dependent Claims (102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126)
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127. 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 conduit defines a wound contact region for contact with a wound surface and an oxygen absorption region which extends beyond the wound surface and is exposed to ambient air. - View Dependent Claims (128, 129, 130, 131, 132)
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133. 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 (134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150)
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151. A method of forming a wound dressing, comprising:
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passing a length of multi-filament fiber through a coating solution such that the fiber is coated via the solution while maintaining continuous inter-filament spaces through the fiber; arranging the length of coated fiber to align in parallel upon a supporting frame such that a coated fiber array is formed; securing the coated fiber array via one or more adhesive stripes placed transversely relative to a length of the coated fiber; removing the coated fiber array from the supporting frame; positioning the coated fiber array between an open area of a hydrophilic absorbent material envelope and a hydrophilic absorbent material such that the hydrophilic absorbent material is positioned at a distance from the open area; and securing the hydrophilic absorbent material envelope such that the hydrophilic absorbent material is sealed therein while the coated fiber array remains exposed. - View Dependent Claims (152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164)
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Specification