Abstract: A medical balloon sensing assembly constituted of: a handle; a first catheter extending distally from the handle; an inflatable medical balloon, the inflatable medical balloon secured by the first catheter; at least one sensor position member; and at least one sensor secured to the at least one sensor position member, wherein the at least one sensor position member is arranged to contact an outer face of the inflatable medical balloon.

Abstract: Methods and systems for rotationally aligning a commissure of a prosthetic heart valve with a commissure of a native valve are disclosed. In some examples, a delivery apparatus can include a first shaft configured to rotate around a central longitudinal axis of the delivery apparatus to rotationally align a prosthetic valve mounted on the delivery apparatus with native anatomy, a second shaft extending through the first shaft and having a distal end portion extending distally beyond a distal end portion of the first shaft, an inflatable balloon coupled to the distal end portion of the first shaft, and a distal shoulder mounted on the distal end portion of the second shaft and arranged within a distal end portion of the balloon. The distal shoulder comprises a base portion and a flared portion that extends radially outward from the base portion, and a radiopaque marker is disposed on the flared portion.