Flexible reduced pressure treatment appliance
First Claim
1. A device for compressing a tissue surface comprising:
- a vacuum cup including an outer perimeter adapted to attach to the tissue surface when a negative pressure is applied in the vacuum cup, a top and a wall including a plurality of parallel ridges configured to face the tissue surface, the plurality of parallel ridges extending lengthwise from the top of the cup toward the outer perimeter, where the outer perimeter, the wall and the top define two or more cavities, where the outer perimeter is adapted to be positioned proximal to the tissue surface; and
a vacuum source adapted to apply the negative pressure in the vacuum cup, where activation of the vacuum source evacuates air out of the vacuum cup such that when the outer perimeter is brought into contact with the tissue surface a negative pressure is generated in the vacuum cup which results in one or both the deformation and collapse of the wall and results in compression of the tissue surface.
1 Assignment
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Accused Products
Abstract
A wound treatment appliance is provided for treating all or a portion of a wound. In some embodiments, the appliance comprises an impermeable flexible overlay that covers all or a portion of the wound for purposes of applying a reduced pressure to the covered portion of the wound. In other embodiments, the impermeable flexible overlay comprises suction assistance means, such as channels, which assist in the application of reduced pressure to the area of the wound and removal of exudate from the wound. In other embodiments, the wound treatment appliance also includes a vacuum system to supply reduced pressure to the wound in the area under the flexible overlay. In yet other embodiments, the wound treatment appliance also includes wound packing means to prevent overgrowth of the wound or to encourage growth of the wound tissue into an absorbable matrix comprising the wound packing means. In still other embodiments, the appliance may include a suction drain. In other embodiments, the appliance may include a collection chamber to collect and store exudate from the wound. In yet other embodiments, a suction bulb may be used to provide a source of reduced pressure to an impermeable overlay that covers all or a portion of the wound. Finally, methods are provided for using various embodiments of the wound treatment appliance.
886 Citations
20 Claims
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1. A device for compressing a tissue surface comprising:
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a vacuum cup including an outer perimeter adapted to attach to the tissue surface when a negative pressure is applied in the vacuum cup, a top and a wall including a plurality of parallel ridges configured to face the tissue surface, the plurality of parallel ridges extending lengthwise from the top of the cup toward the outer perimeter, where the outer perimeter, the wall and the top define two or more cavities, where the outer perimeter is adapted to be positioned proximal to the tissue surface; and a vacuum source adapted to apply the negative pressure in the vacuum cup, where activation of the vacuum source evacuates air out of the vacuum cup such that when the outer perimeter is brought into contact with the tissue surface a negative pressure is generated in the vacuum cup which results in one or both the deformation and collapse of the wall and results in compression of the tissue surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An appliance for administering reduced pressure treatment to a wound on a body, the appliance comprising:
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a liquid impermeable flexible overlay, the overlay having an opening sized to be placed over the wound to be treated, and being adapted to maintain reduced pressure in the volume under the flexible overlay in an area of the wound; a reduced pressure supply conduit that is configured to provide a supply of reduced pressure to the flexible overlay; wherein the flexible overlay comprises a plurality of channels or raised portions or ribs disposed on the surface of the flexible overlay extending radially to assist in the application of reduced pressure to the area of the wound and removal of exudate from the wound; and wherein the plurality of channels or raised portions or ribs are configured to face the wound. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification