Abstract: Disclosed herein are representative embodiments of methods, apparatus, and systems used to deliver a prosthetic heart valve to a deficient valve. In one embodiment, for instance, a support structure and an expandable prosthetic valve are advanced through the aortic arch of a patient using a delivery system. The support structure is delivered to a position on or adjacent to the surface of the outflow side of the aortic valve (the support structure defining a support-structure interior). The expandable prosthetic valve is delivered into the aortic valve and into the support-structure interior. The expandable prosthetic heart valve is expanded while the expandable prosthetic heart valve is in the support-structure interior and while the support structure is at the position on or adjacent to the surface of the outflow side of the aortic valve, thereby causing one or more native leaflets of the aortic valve to be frictionally secured between the support structure and the expanded prosthetic heart valve.

Abstract: A discriminating deceleration sensing electrical switch assembly is enclosed within a munitions projectile for providing an electrical circuit path between a pair of electrical contacts upon deceleration of the projectile being greater than a selected deceleration threshold value. The discriminating deceleration electrical switch assembly includes a switch support having a bore hole for holding a spherical mass or ball. A tactile dome switch or snap switch is juxtaposed between an electrical contact assembly, including a pair of electrically conductive surface regions, and the spherical mass. The components are arranged along the munitions firing axis such that, upon sufficient deceleration along the firing axis, a force acting on the spherical mass will cause the dome switch to deform and contact the conductive surface regions to provide switch closure.