A prosthetic heart valve device for a mitral valve, comprising: a cylindrical support having a longitudinal axis and an interior along the longitudinal axis through which blood may flow; a valve coupled within the interior of the support and configured to block blood flow through the support in an upstream direction and allow blood flow through the support in a downstream direction; and a plurality of arms coupled to the support; wherein the device is movable into a plurality of configurations including - a first configuration or inward configuration in which the support is radially contracted and wherein each arm is in an inward configuration for placement in a lumen of a catheter; a second configuration or outward configuration in which the support is at least partially radially contracted and each arm is in an outward position spatially separated from the exterior wall by a distance sufficient to receive a leaflet of the heart valve therebetween; and a third configuration or expanded configuration in which the support is radially expanded and each arm is positioned closer to the exterior wall of the support than in the second configuration, wherein the plurality of arms is coupled to the support and extends in the upstream direction along an exterior wall of the support, further comprising a pressure-reducing tip portion on each individual arm, wherein the pressure-reducing tip portion comprises a first cross-sectional dimension and a second portion of an individual arm comprises a second cross-sectional dimension, the first cross-sectional dimension greater than the second cross-sectional dimension so as to decrease pressure to contacting tissue at the tip, wherein the tip portion comprises a ball. a cylindrical support having a longitudinal axis and an interior along the longitudinal axis through which blood may flow; a valve coupled within the interior of the support and configured to block blood flow through the support in an upstream direction and allow blood flow through the support in a downstream direction; and a plurality of arms coupled to the support; wherein the device is movable into a plurality of configurations including - a first configuration or inward configuration in which the support is radially contracted and wherein each arm is in an inward configuration for placement in a lumen of a catheter; a second configuration or outward configuration in which the support is at least partially radially contracted and each arm is in an outward position spatially separated from the exterior wall by a distance sufficient to receive a leaflet of the heart valve therebetween; and a third configuration or expanded configuration in which the support is radially expanded and each arm is positioned closer to the exterior wall of the support than in the second configuration, wherein the plurality of arms is coupled to the support and extends in the upstream direction along an exterior wall of the support, further comprising a pressure-reducing tip portion on each individual arm, wherein the pressure-reducing tip portion comprises a first cross-sectional dimension and a second portion of an individual arm comprises a second cross-sectional dimension, the first cross-sectional dimension greater than the second cross-sectional dimension so as to decrease pressure to contacting tissue at the tip, wherein the tip portion comprises a ball. a first configuration or inward configuration in which the support is radially contracted and wherein each arm is in an inward configuration for placement in a lumen of a catheter; a second configuration or outward configuration in which the support is at least partially radially contracted and each arm is in an outward position spatially separated from the exterior wall by a distance sufficient to receive a leaflet of the heart valve therebetween; and a third configuration or expanded configuration in which the support is radially expanded and each arm is positioned closer to the exterior wall of the support than in the second configuration, wherein the plurality of arms is coupled to the support and extends in the upstream direction along an exterior wall of the support, further comprising a pressure-reducing tip portion on each individual arm, wherein the pressure-reducing tip portion comprises a first cross-sectional dimension and a second portion of an individual arm comprises a second cross-sectional dimension, the first cross-sectional dimension greater than the second cross-sectional dimension so as to decrease pressure to contacting tissue at the tip, wherein the tip portion comprises a ball.