Patent ID: 8357126

Claim:
An anti-extravasation system comprising: a catheter having a length and an outer diameter suitable for extending from a peripheral vein insertion point on a patient to a treatment site, said catheter characterized by an elongated venous section located distal to an interstitial section and comprising: an inner tube characterized by central lumen; an outer tube disposed about the inner tube; a plurality of ribs extending between the inner and outer tubes and running along the length of the catheter; wherein the inner tube, the outer tube and the plurality of ribs bound a plurality of drainage lumens that extend between the inner and outer tubes and that run along the length of the catheter; and a plurality of apertures disposed in the interstitial section of the outer tube, said apertures in fluid communication with the drainage lumens and adapted to drain fluid from tissue surrounding the insertion point when the catheter is operably disposed within the patient; wherein the venous section of the outer tube comprises an outer surface and is structured to prevent fluid communication between the outer surface of the venous section and the drainage lumens; and a hub proximal to the interstitial section and placed in fluid communication with the central lumen and the plurality of drainage lumens.