DRESSINGS AND METHODS FOR TREATING A TISSUE SITE ON A PATIENT
First Claim
Patent Images
1. A dressing for treating a tissue site on a patient, the dressing comprising:
- a wound interface member for placing proximate to the tissue site;
a covering, wherein at least a portion of the covering comprises an evaporative window having a liquid-impermeable, vapor-permeable membrane;
wherein the covering is operable to form a sealed space over the tissue site; and
wherein the liquid-impermeable, vapor-permeable membrane allows liquids in the sealed space that have evaporated to egress the sealed space.
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Accused Products
Abstract
Dressings, systems, and methods for treating a tissue site on a patient involve allowing liquids from the tissue site or a priming fluid to evaporate and exit the dressing through a liquid-impermeable, vapor-permeable membrane. The dressing is able to process more liquids than would otherwise be possible without evaporation and potentially to create reduced pressure. Other dressings, systems, and methods are disclosed.
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Citations
31 Claims
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1. A dressing for treating a tissue site on a patient, the dressing comprising:
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a wound interface member for placing proximate to the tissue site; a covering, wherein at least a portion of the covering comprises an evaporative window having a liquid-impermeable, vapor-permeable membrane; wherein the covering is operable to form a sealed space over the tissue site; and wherein the liquid-impermeable, vapor-permeable membrane allows liquids in the sealed space that have evaporated to egress the sealed space. - View Dependent Claims (2, 3, 4, 6, 7, 9, 11, 12, 13, 15, 16, 17, 18, 19, 20)
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5. (canceled)
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8. (canceled)
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10. (canceled)
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14. (canceled)
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21. A method for treating a tissue site with a reduced pressure, the method comprising:
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deploying a foam member proximate to the tissue site; covering the foam member with a covering having an evaporative window, wherein the evaporative window comprises a liquid-impermeable, vapor-permeable membrane, the covering forming a sealed space over the foam member; and allowing liquids from the tissue site to evaporate and to egress the sealed space through the liquid-impermeable, vapor-permeable membrane. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31-37. -37. (canceled)
Specification