US Patent 10039637 Heart valve docking devices and implanting methods

A device is in various embodiments configured to repair a native heart valve or to secure a prosthetic heart valve within a native valve of the heart of a patient. Embodiments of the device include at least an upper coil and a lower coil, where the device is configured to assume an axially expanded state where the entire upper coil is positioned on a first side of the lower coil relative to the central axis, and an axially compressed state where at least a portion of the upper coil is positioned on a second side of at least a portion of the lower coil opposite to the first side relative to the central axis.