Partial aortic occlusion devices and methods for renal perfusion augmentation
First Claim
14-1. The method of claim 14, wherein a pressure differential exists between the aorta upstream of the balloon and the aorta downstream of the balloon.
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Abstract
A method for increasing renal blood flow. A catheter is inserted into the descending aorta. An expandable member on a distal region of the catheter is positioned in the aorta downstream from the takeoff of a renal artery. The expandable member is expanded to partially occlude blood flow in the aorta. Blood pressure in the proximal aorta increases, blood pressure in the distal aorta decreases, and renal blood flow increases by this technique. A physiologic parameter, such as blood pressure, in the proximal aorta may be measured to monitor the effects of the procedure. The expansion of the expandable member may be adjusted based on the physiologic parameter.
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Citations
24 Claims
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14-1. The method of claim 14, wherein a pressure differential exists between the aorta upstream of the balloon and the aorta downstream of the balloon.
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