PARTIAL AORTIC OCCLUSION DEVICES AND METHODS FOR CEREBRAL PERFUSION AUGMENTATION
First Claim
1. A method for increasing cerebral blood flow, comprising the steps of:
- inserting a catheter into the descending aorta, the catheter having a proximal end, a distal end, a first inflatable balloon mounted on the distal end, and a second inflatable balloon mounted on the distal end proximal the first inflatable balloon;
locating the first inflatable balloon upstream from the takeoff of the renal arteries;
locating the second inflatable balloon downstream from the takeoff of the renal arteries; and
inflating and maintaining an inflated state of the second inflatable balloon to partially occlude blood flow in the aorta during systole and diastole, wherein cerebral blood flow is increased.
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Accused Products
Abstract
Methods are provided for partial aortic obstruction for cerebral perfusion augmentation in patients suffering from global or focal cerebral ischemia. Alternatively, the methods can be used to partially obstruct aortic blood flow to condition the spinal cord to secrete neuroprotective agents prior to abdominal aortic aneurysm repair. Partial obstruction of a vessel can be accomplished by a device comprising an elongate catheter and a distally mounted expandable member. The expandable member may comprise one or two balloons. Other medical devices, such as an angioplasty, stent, or atherectomy catheter, can be inserted distal the expandable member to provide therapeutic intervention.
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Citations
24 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 end, a distal end, a first inflatable balloon mounted on the distal end, and a second inflatable balloon mounted on the distal end proximal the first inflatable balloon; locating the first inflatable balloon upstream from the takeoff of the renal arteries; locating the second inflatable balloon downstream from the takeoff of the renal arteries; and inflating and maintaining an inflated state of the second inflatable balloon to partially occlude blood flow in the aorta during systole and diastole, wherein cerebral blood flow is increased. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification