Devices and methods for treating acute kidney injury

Abstract

A catheter devices/systems and methods therefrom are described herein for treating acute kidney in-jury, especially the contrast-induced acute kidney injury wherein the devices prevent the contrast dyes from entering into kidney and/or facilitate blood flow of kidney by said catheter system.

What is claimed is: 
     
         1 . A device for preventing acute kidney injury from contrast agent introduced into vasculature of a subject, the device comprising:
 a catheter shaft having a first lateral side and a second lateral side;   a first expandable member disposed on a first lateral side of the catheter shaft; and   a second expandable member disposed on a second lateral side of the catheter shaft,   wherein the first and second expandable members have an expanded configuration in which when advanced into an abdominal aorta and positioned adjacent renal artery ostia of the subject are sized to occlude the renal artery ostia while allowing blood flow over the catheter shaft.