| 摘要 |
Methods for removing a valve from a bodily vessel. In at least one method for removing a valve from a bodily vessel, the method comprises the steps of introducing an umbrella device into a vessel, positioning the umbrella device within an aperture within the valve, deploying a first umbrella of the umbrella device on a first side of the valve to engage the valve at the first side of the valve, deploying a second umbrella of the umbrella device on a second side of the valve to engage the valve at the second side of the valve, operating a mechanical drill of the umbrella device 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.
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