Vacuum assisted wound dressing
First Claim
Patent Images
1. An apparatus for the application of topical negative pressure therapy to a wound, the apparatus comprising:
- a wound covering element configured to be positioned over the wound, wherein the wound covering element comprises an aperture;
a vacuum connection conduit configured to be connected to the wound covering element; and
,a wound dressing portion comprising an absorbent material configured to be placed over the wound and under the wound covering element, the absorbent material configured to retain wound exudate therein upon application of negative pressure; and
a self-coalescing liquid blocking material positioned at the aperture in the wound covering element, wherein the liquid blocking material is configured to inhibit wound exudate from being aspirated into the vacuum connection conduit.
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Abstract
Apparatus for the application of topical negative pressure therapy to a wound site is described, the apparatus comprising: a wound contacting element for retaining wound exudate fluid therein; a wound covering element that provides a substantially airtight seal over the wound contacting element and wound site; a vacuum connection tube connecting a wound cavity to a vacuum source; and a vacuum source connected to a distal end of the vacuum connection tube.
598 Citations
22 Claims
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1. An apparatus for the application of topical negative pressure therapy to a wound, the apparatus comprising:
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a wound covering element configured to be positioned over the wound, wherein the wound covering element comprises an aperture; a vacuum connection conduit configured to be connected to the wound covering element; and
,a wound dressing portion comprising an absorbent material configured to be placed over the wound and under the wound covering element, the absorbent material configured to retain wound exudate therein upon application of negative pressure; and a self-coalescing liquid blocking material positioned at the aperture in the wound covering element, wherein the liquid blocking material is configured to inhibit wound exudate from being aspirated into the vacuum connection conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for the application of topical negative pressure therapy to a wound site, the apparatus comprising:
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an absorbent wound contacting element for retaining wound exudate fluid therein; a wound covering element configured to provide a substantially airtight seal over the wound contacting element and the wound site; an absorbent material that transforms into a gel upon contact with wound exudate fluid positioned in or over an aperture in the wound covering element; and a vacuum connection conduit configured to deliver vacuum through the aperture in the wound covering element; wherein the wound contacting element and the wound covering element are combined into a single element. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification