Patent ID: 8372069

Claim:
A method for removing a valve from a bodily vessel, the method comprising the steps of: introducing an umbrella device into a vessel, the umbrella device comprising: a shaft catheter having a distal end and a proximal end; a first umbrella comprising a first mesh, the first umbrella coupled to the shaft catheter at or near the distal end of the shaft catheter; a second umbrella comprising a second mesh, the second umbrella coupled to the shaft catheter at or near the distal end of the shaft catheter, wherein the second umbrella is positioned along the shaft catheter proximally to the first umbrella and wherein the first mesh and the second mesh are configured to allow blood to pass therethrough; and a mechanical drill comprising at least one blade, the mechanical drill rotatably coupled to the shaft catheter and positioned between the first umbrella and the second umbrella; positioning the umbrella device within an aperture within the valve; deploying the first umbrella on a first side of the valve, wherein the deployed first umbrella engages the valve at a first side of the valve; deploying the second umbrella on a second side of the valve, wherein the deployed second umbrella engages the valve at a second side of the valve; operating the mechanical drill to grind the valve; collapsing the first umbrella and the second umbrella to facilitate withdrawal of the umbrella device from the vessel; and withdrawing the umbrella device from the vessel.