ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,515, issued on Feb. 24, was assigned to ConvaTec Technologies Inc. (Las Vegas).
"Non-collapsible catheter tube" was invented by Mingliang Lawrence Tsai (Holmdel, N.J.) and Pavel Zeliankevich (Chester, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus according to certain embodiments generally includes an elongated tubular member having a proximal end and an opposite distal end, and an inflatable balloon surrounding the distal end. The elongated tubular member comprises an outer tube, a non-collapsible inner tube positioned within the outer tube, and a compressible material positioned between the outer tube and the inner tube....