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US 9,173,788 B2Granted
Anisotropic drapes and systems
AssigneeKCI Licensing, Inc.
InventorsRichard Marvin Kazala, Jr., Justin Alexander Long, Robert Peyton Wilkes, Royce W. Johnson
Life of this patent
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Abstract
An anisotropic wound drape for treating a wound on a patient includes a flexible sheet for placing over a tissue site The flexible sheet includes a first isotropic zone, and a second isotropic zone. The first isotropic zone and the second isotropic zone are configured to provide the flexible sheet with anisotropic stretching properties. The anisotropic drape may used as part of a reduced-pressure wound treatment system. Other systems and methods are also presented.
Claims11
A method of manufacturing a wound drape, the method comprising the steps of:
- forming a flexible sheet for placing over a tissue site, the flexible sheet comprising an impermeable or semi-permeable elastomeric material and having a first isotropic zone and a second isotropic zone;
- and
- wherein the first isotropic zone and the second isotropic zone are configured to provide the flexible sheet with anisotropic stretching properties, wherein the first isotropic zone has a first thickness (t1) and the second isotropic zone has a second thickness (t2), and wherein the first thickness is greater than one hundred five percent (105%) of the second thickness (t1 >105% t2).
Dependencies are inferred from the claim text.