Prosthetic heart valve devices and associated systems and methods

A prosthetic treatment apparatus for treating a native mitral valve having a native annulus and native leaflets, comprising:

• a support having a downstream end configured to be positioned toward a left ventricle and an upstream end configured to be positioned toward a left atrium, wherein the support is expandable from a low-profile configuration for implantation to an expanded configuration at the native mitral valve;
• a prosthetic valve attached to the support;
• a plurality of elongated members extending outwardly from a downstream portion of the support in an upstream direction, wherein—
• the elongated members are configured to remain inward of an inner surface of the native leaflets, and
• the elongated members are biased outwardly in the expanded configuration to exert force against the inner surface of the native leaflets;
• and
• a skirt coupled to the downstream portion of the support and flaring outward in an upstream direction such that an upstream end of the skirt is spaced outwardly from the support, wherein the skirt extends around the entire circumference of the support.

A prosthetic treatment apparatus for treating a native mitral valve having a native annulus and native leaflets, comprising:

• a support having a first portion configured to be positioned toward a ventricle and a second portion configured to be positioned toward an atrium, wherein the support is expandable from a low-profile configuration for implantation to an expanded configuration at the native mitral valve;
• a prosthetic valve attached to the support;
• a plurality of elongated members extending outwardly from the first portion of the support toward the second portion of the support, wherein—
• the elongated members are configured to remain inward of the native leaflets, and
• the elongated members are biased outwardly in the expanded configuration to exert force against the native leaflets;
• and
• a skirt coupled to the first portion of the support and extending toward the second portion, wherein the skirt has an end portion spaced outwardly from the support, and wherein the skirt extends around the entire circumference of the support.

A prosthetic treatment apparatus for treating a native mitral valve having a native annulus and native leaflets, comprising:

• a support having a downstream end configured to be positioned toward a left ventricle and an upstream end configured to be positioned toward a left atrium, wherein the support is expandable from a low-profile configuration for implantation to an expanded configuration at the native mitral valve;
• a prosthetic valve attached to the support;
• a plurality of elongated members extending outwardly from the support in an upstream direction, wherein—
• the elongated members are configured to remain inward of an inner surface of the native leaflets, and
• the elongated members are biased outwardly in the expanded configuration to exert force against the inner surface of the native leaflets;
• and
• a skirt coupled to the support and flaring outward in an upstream direction such that an upstream end of the skirt is spaced outwardly from the support, wherein the skirt extends around the entire circumference of the support.