ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,057, issued on Oct. 21, was assigned to T.J.Smith and Nephew Ltd. (Hull, Great Britain).
"Negative pressure wound therapy apparatus" was invented by Bryan Greener (York, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed embodiments relate to apparatuses and methods for wound treatment. In certain embodiments, a negative pressure wound therapy apparatus can include a wound dressing with a spacer layer separated from the absorbent layer by intermediate layers or drapes. The wound dressing can include a first portion comprising a wound contact or tissue contact layer, a first spacer layer, and a first backing layer comprising a fir...