Anti-Extravasation Catheter

Abstract

The disclosed devices and methods provide for the minimization of fluid extravasation during use of infusion catheters such as peripherally inserted central catheters and central venous catheters. The anti-extravasation catheter allows a surgeon to drain fluids from soft tissue surrounding an infusion site while also providing fluid inflow to a patient.

We claim: 
     
         1 . 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 inflow lumen; 
 at least one drainage lumen; and 
 a plurality of apertures disposed in the interstitial section of the catheter, said apertures in fluid communication with the drainage lumen 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 catheter comprises an outer surface and is structured to prevent fluid communication between the outer surface of the venous section and the drainage lumen; and 
   a hub proximal to the interstitial section and placed in fluid communication with the inflow lumen and the drainage lumen.