ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,655, issued on May 6, was assigned to CONVATEC Ltd. (Flintshire, Great Britain).
"Wound dressing" was invented by Stephen Cotton (Nottingham, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A negative pressure wound therapy dressing comprising a drainage tube. The drainage tube comprises a tube knitted or braided from monofilament yarn and surrounded by an impermeable sheath. Also disclosed is a method of treating a wound using the negative pressure wound therapy dressing, and the knitted or braided tube for use in medical applications."
The patent was filed on Oct. 21, 2016, under Application No. 15/770,152.
*For further information,...