The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2026
Filed:
Jun. 15, 2021
Advanced Dressings, Llc, Cleveland, OH (US);
Timothy Wojciechowski, Westlake, OH (US);
Thomas E. Lash, Chardon, OH (US);
John Buan, Maple Grove, MN (US);
Richard L. Middaugh, Rocky River, OH (US);
Edward Armstrong, Chagrin Falls, OH (US);
AATRU MEDICAL, LLC, Cleveland, OH (US);
Abstract
A controlled oxygen dressing includes a flexible drape that is selectively permeable to air and is adhere to skin to define a first volume around a tissue site. A cover layer, impermeable to air, is sealed to the drape to thereby define a second volume between the cover layer the drape. An oxygen scavenger is arranged in the second volume and consumes oxygen in the second volume, which produces an oxygen concentration differential between the first and second volumes, This differential causes oxygen to diffuse through a covered portion of the drape, from the first volume to the second volume, thus decreasing the amount of oxygen in the first volume. Oxygen entering into the first volume from the surrounding environment diffuses through a non-covered portion of the drape. Therefore, an area of the cover layer can be selected to produce a desired level of oxygen in the first volume.