Abstract: Embodiments of delivery systems, devices and methods for delivering a prosthetic heart valve device to a heart chamber for expanded implementation are disclosed. More specifically, methods, systems and devices are disclosed for delivering a self-expanding prosthetic mitral valve device to the left atrium, with no engagement of the left ventricle, the native mitral valve leaflets or the annular tissue downstream of the upper annular surface during delivery, and in some embodiments with no engagement of the ventricle, mitral valve leaflets and/or annular tissue located downstream of the upper annular surface by the delivered, positioned and expanded prosthetic mitral valve device.

Abstract: A first medical device for obstructive sleep apnea therapy includes therapy delivery circuitry coupled to a first set of electrodes implantable proximate to a first hypoglossal nerve within a tongue of the patient and configured to deliver a first electrical stimulation signal to the first hypoglossal nerve that causes the tongue of the patient to advance and includes information to communicate to a second medical device implantable within the head or neck of the patient and coupled to a second set of electrodes implantable proximate to a second hypoglossal nerve within the tongue of the patient; and sensing circuitry coupled to the first set of electrodes and configured to receive a second electrical stimulation signal, delivered to the second hypoglossal nerve by the second medical device, that includes information that the second medical device communicates to the first medical device.

Abstract: An electron gun having arc suppression means is described. In one of the preferred embodiments of the electron gun, at least one cathode is provided for generating an electron beam along a beam path. A plurality of electrodes are serially disposed along the beam path. The electrodes include at least one low voltage electrode and at least one high voltage electrode. A plurality of resistors interconnect selected ones of the electrodes. The interconnected electrodes normally operate at substantially the same voltage, and the resistors act as a voltage divider in the event of an arc and prevent damaging cascading arcs.

Abstract: An electron gun comprises at least one cathode for generating an electron beam along a beam path and a plurality of electrodes serially disposed along the beam path. The electrodes include at least one accelerating and focusing electrode having two spaced-apart electrode sections axially separated along a plane substantially perpendicular to the beam path. An arc-suppression resistor interconnects the spaced-apart electrode sections of the electrode. The interconnected electrode sections normally operate at substantially the same voltage. The arc-suppression resistor acts in the event of an arc to limit the arc current and prevent damaging cascading arcs.

Abstract: An improvement is provided in an apertured mask type color picture tube having a substantially flat faceplate, a cathodoluminescent screen on the faceplate, a corrugated apertured mask adjacent the screen and electron gun means for producing and directing a plurality of electron beams through the mask to impinge upon the screen. The mask corrugations are substantially parallel and extend in a first direction with the varying corrugated waveform extending in a second direction. The mask includes an aperture width and/or an aperture-to-aperture spacing variation in the second direction which is a function of mask-to-screen spacing.

Abstract: The tube includes an improved shadow mask contoured with step risers therein separating active portions of the mask. The risers are aligned with electron beam paths within the tube.