摘要:
A system senses a cardiac signal for diagnostic and/or therapy control purposes using a first set of electrodes and switches to a different second set of electrodes for recognizing cardiac events in the cardiac signal. In various embodiments, the cardiac signal sensed using the second set of electrodes is compared to the cardiac signal sensed using the first set of electrodes, and the cardiac events in the cardiac signal are each recognized using an outcome of the comparison.
摘要:
This document discusses, among other things, methods and systems for facilitating automated device programming at changeout. A method comprises receiving, from a first device, physiological data at a temporary storage device; and processing the received physiological data, wherein the processing includes determining if a first signal processing function was used by the first device and substantially offsetting the first signal processing function if the first signal processing function was used by the first device; and processing the resultant physiological data to be compatible with a second device. The method further comprising providing the processed resultant physiological data to the second device.
摘要:
A gel film or an isolated gel film comprising sheets of graphene or chemically converted graphene at least partially separated by a dispersion medium, such as water, and arranged in a substantially planar manner to form an electrically conductive matrix.
摘要:
A system and method for automatically analyzing a cardiac signal, including the step of providing an episode database on a computer storage medium including a plurality of episode data records of one or more patients. Each episode data record includes a cardiac signal from at least one data-generating device. The method also includes the step of selecting one or more of the N beats to be one or more beat templates, for at least a first cardiac signal having N beats. Another step is determining a value K for the cardiac signal using a computer system where K beat templates can represent all the N beats in the cardiac signal.
摘要:
A process for the preparation of ranolazine comprises the step of condensing N-(2,6-dimethylphenyl)-1-piperazinyl acetamide with a compound of formula (I) to obtain ranolazine, in which X is chlorine or bromine Ranolazine is prepared by condensing ring-opening halide which replaces epoxide in this process.
摘要:
A system and method can sense a tachyarrhythmia, compare the sensed tachyarrhythmia with a ventricular tachyarrhythmia criterion, provide a ventricular tachyarrhythmia therapy when the sensed tachyarrhythmia satisfies the ventricular tachyarrhythmia criterion, provide a neural stimulation when the sensed tachyarrhythmia does not satisfy the ventricular tachyarrhythmia criterion, determine whether the tachyarrhythmia continues during or after the neural stimulation when the tachyarrhythmia is sustained, compare the tachyarrhythmia sensed during or after the neural stimulation with a supraventricular tachyarrhythmia (SVT) criterion, and provide a ventricular tachyarrhythmia therapy when the sensed tachyarrhythmia does not satisfy the SVT criterion.
摘要:
A hybrid Butterfly Cube (“BCube”) architecture is described herein. The BCube architecture is a server-centric network architectural design, and includes a plurality of servers. Each of the plurality of servers may have multiple network ports and serve not only as an end host, but also an intermediate relay node for other servers. The BCube architecture further includes a plurality of switches which are arranged in multiple levels. Each switch has a certain number of network ports for connecting to the servers. The BCube architecture provides multiple parallel paths between any two servers. A packet source routing protocol and a BCube source routing (BSR) protocol are used to determine which path is used for routing a packet between any two servers.
摘要:
An implantable medical device delivers anti-tachyarrhythmia therapies including anti-tachyarrhythmia pacing (ATP). When a tachyarrhythmia episode is detected, the implantable medical device analyzes cardiac cycle length stability to determine whether and/or when to deliver an ATP. In one embodiment, the cardiac cycle length stability is measured by existence of stable ventricular tachyarrhythmia clusters (SVTCs) during the tachyarrhythmia episode. Each SVTC includes at least a specified minimum number of heart beats over which the cardiac cycle lengths meet a stability criterion.
摘要:
An example relates to a method for sensing a pulmonary artery pressure (PAP) and providing a sensed PAP signal, detecting an abnormal blood pressure (BP) condition using information from the sensed PAP signal, delivering a pacing energy to a heart, and automatically altering at least one pacing characteristic in response to the detected abnormal BP condition. The detecting an abnormal BP condition can include detecting various forms of hypertension or hypotension. The automatically altering the at least one pacing characteristic can include automatically altering at least one of a pacing rate, a pacing waveform, an atriventricular (AV) delay, an interventricular (VV) delay, a pacing mode, or a pacing site. The method can also include delivering vagal nerve stimulation and automatically altering the vagal nerve stimulation in response to the detected abnormal BP condition. The detecting the abnormal BP condition can also include using a sensed auxiliary physiological parameter.