Method and apparatus for in vivo heart valve decalcification
First Claim
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1. A method of removing deposits from an aortic heart valve having a superior surface, comprising;
- advancing through the aorta an anchoring balloon and a deposit removal tool movably connected with respect to an exterior surface of the anchoring balloon;
positioning the anchoring balloon across the aortic valve and positioning the deposit removal tool near the superior surface of the aortic valve;
inflating the anchoring balloon sufficiently to fixate it with respect to the aorta and aortic valve without completely collapsing the aortic valve; and
operating the deposit removal tool to remove the deposits.
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Abstract
A method and apparatus for in vivo removal of calcified deposits from an aortic valve. The apparatus includes an anchoring balloon catheter fixatable across the aortic valve, a tool for removing the deposits, and a mechanism means for securing the tool with respect to the anchoring balloon and the aortic valve. The method involves advancing an anchoring balloon catheter through the aorta and positioning it across the aortic valve, inflating the anchoring balloon to fixate it with respect to the aorta and aortic valve, and then operating a deposit removal tool secured to the anchoring balloon to remove the deposits.
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Citations
14 Claims
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1. A method of removing deposits from an aortic heart valve having a superior surface, comprising;
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advancing through the aorta an anchoring balloon and a deposit removal tool movably connected with respect to an exterior surface of the anchoring balloon; positioning the anchoring balloon across the aortic valve and positioning the deposit removal tool near the superior surface of the aortic valve; inflating the anchoring balloon sufficiently to fixate it with respect to the aorta and aortic valve without completely collapsing the aortic valve; and operating the deposit removal tool to remove the deposits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of removing deposits from the aortic valve of a heart, comprising;
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advancing a deflated, furled anchoring balloon through the aorta and positioning it across the aortic valve, the anchoring balloon including a collapsible guiding catheter sheath; inflating the anchoring balloon sufficiently to fixate it with respect to the aorta and aortic valve without completely collapsing the aortic valve; advancing a guiding catheter and a deposit removal tool through the guiding catheter sheath after the anchoring balloon has been inflated and positioning the deposit removal tool near the superior surface of the aortic valve; and operating the deposit removal tool to remove the deposits. - View Dependent Claims (14)
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Specification