Partial aortic occlusion devices and methods for cerebral perfusion augmentation
First Claim
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1. A method for increasing cerebral blood flow, comprising the steps of:
- inserting a catheter into the descending aorta, the catheter having a proximal region, a distal region, and at least one expandable member mounted on the distal region;
locating the at least one expandable member downstream from the takeoff of the brachiocephalic artery;
expanding the at least one expandable member to at least partially obstruct blood flow in the aorta during systole and diastole; and
cycling the at least one expandable member between greater and lesser obstruction of blood flow.
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Abstract
A method for increasing cerebral blood flow is described. A catheter is inserted into the descending aorta, the catheter having a proximal region, a distal region, and at least one expandable member mounted on the distal region. The expandable member is positioned downstream from the takeoff of the brachiocephalic artery. The expandable member is expanded to at least partially obstruct blood flow in the aorta. The expandable member is then cycled between greater and lesser obstruction of blood flow. In this manner, renal ischemia and lower limb ischemia is avoided.
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11 Claims
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1. A method for increasing cerebral blood flow, comprising the steps of:
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inserting a catheter into the descending aorta, the catheter having a proximal region, a distal region, and at least one expandable member mounted on the distal region;
locating the at least one expandable member downstream from the takeoff of the brachiocephalic artery;
expanding the at least one expandable member to at least partially obstruct blood flow in the aorta during systole and diastole; and
cycling the at least one expandable member between greater and lesser obstruction of blood flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification