Abstract: Interfaces for delivery systems for delivering and deploying prosthetic heart valves. A prosthetic valve may be secured to a patient's native diseased valve by a spiral-shaped anchor that encircles an outer periphery of the prosthetic valve. In some examples, the interface provides a releasable connection between the anchor and a tether that guides placement of the anchor with respect to the patients native valve. Once the anchor is properly positioned, the prosthetic valve may be positioned and expanded within the patient's native valve and the anchor. The tether-anchor interface can release the anchor from the tether, leaving the anchor and valve prosthesis secured in place within the heart.

Abstract: A delivery system for delivering a spiral anchor to a diseased native valve of a heart includes an anchor control catheter and an anchor guide extending from the anchor control catheter. The anchor guide includes a flexible configuration and a rigid configuration. The anchor guide in the rigid configuration includes a proximal section, a middle section, and a distal section. The proximal section includes a straight central axis and extends from the anchor control catheter, the middle section spirals axially and radially outwards from the central axis, and the distal section curves concentrically about the central axis in a plane that is perpendicular to the central axis.