摘要:
A method of determining one or more physiological parameter of a patient by providing a plurality of implantable electrodes proximate a blood vessel of the patient, applying a measurement signal through the plurality of electrodes, the measurement signal having a known parameter, obtaining a resultant signal through the plurality of electrodes, the resultant signal having a resultant parameter, calculating vascular impedance based on the measurement signal and the resultant signal, and calculating a physiological parameter based on the vascular impedance. In some embodiments, the physiological parameter is utilized to modify a therapy signal controlling therapy delivered to the patient.
摘要:
A method of determining one or more physiological parameter of a patient by providing a plurality of implantable electrodes proximate a blood vessel of the patient, applying a measurement signal through the plurality of electrodes, the measurement signal having a known parameter, obtaining a resultant signal through the plurality of electrodes, the resultant signal having a resultant parameter, calculating vascular impedance based on the measurement signal and the resultant signal, and calculating a physiological parameter based on the vascular impedance. In some embodiments, the physiological parameter is utilized to modify a therapy signal controlling therapy delivered to the patient.
摘要:
A method of determining one or more physiological parameter of a patient by providing a plurality of implantable electrodes proximate a blood vessel of the patient, applying a measurement signal through the plurality of electrodes, the measurement signal having a known parameter, obtaining a resultant signal through the plurality of electrodes, the resultant signal having a resultant parameter, calculating vascular impedance based on the measurement signal and the resultant signal, and calculating a physiological parameter based on the vascular impedance. In some embodiments, the physiological parameter is utilized to modify a therapy signal controlling therapy delivered to the patient.
摘要:
A method of determining one or more physiological parameter of a patient by providing a plurality of implantable electrodes proximate a blood vessel of the patient, applying a measurement signal through the plurality of electrodes, the measurement signal having a known parameter, obtaining a resultant signal through the plurality of electrodes, the resultant signal having a resultant parameter, calculating vascular impedance based on the measurement signal and the resultant signal, and calculating a physiological parameter based on the vascular impedance. In some embodiments, the physiological parameter is utilized to modify a therapy signal controlling therapy delivered to the patient.
摘要:
A cardiac pacing system preventing short-long-short pacing sequences. The system providing pacing pulses where necessary. The system having dynamic event window generation to adapt to changes in heart rate. The event window adaptable to process a number of intervals. The system including provisions for other inputs, such as sensor and morphology detection. The system adaptable for single mode and dual mode applications. The system also applicable to long pause prevention in atrial pacing and ventricular pacing.
摘要:
A lead system, coupled to an implantable device, is configured for subcutaneous, non-intrathoracic placement relative to a patient's heart. Cardiac activity detection circuitry is coupled to the lead system and configured to detect cardiac rhythms. Disordered breathing detection circuitry is coupled to the lead system and configured to detect disordered breathing. One or both of cardiac therapy circuitry and disordered breathing therapy circuitry may be coupled to the lead system and configured to delivery therapies to treat disordered breathing. Such therapies include cardiac pacing, diaphragmatic pacing, and hypoglossal nerve stimulation therapies. A patient-external respiratory device, such as a positive airway pressure device, may be configured to deliver a disordered breathing therapy. One or more of a patient-internal drug delivery device, a patient-external drug delivery device, or a gas therapy device may be employed to treat disordered breathing.
摘要:
Described herein are methods and systems for delivering pacing therapy to HF patients who do not exhibit a reduced EF. Such patients do not have systolic dysfunction and generally do not benefit from established HF therapies that either augment contractile function or counteract conduction abnormalities. In one embodiment, a HF patient with a normal EF is tested for the adequacy of heart rate response during exercise. If the patient is found to be chronotropically incompetent, a rate-adaptive pacing mode is employed in order improve functional capacity.
摘要:
Systems and methods are described for classifying a cardiac rhythm. A cardiac rhythm is classified using a classification process that includes a plurality of cardiac rhythm discriminators. Each rhythm discriminator provides an independent classification of the cardiac rhythm. The classification process is modified if the modification is likely to produce enhanced classification results. The rhythm is reclassified using the modified classification process.
摘要:
Devices and methods of use for introduction and implantation of an electrode as part of a minimally invasive technique. An implantable baroreflex activation system includes a control system having an implantable housing, an electrical lead, attachable to the control system, and an electrode structure. The electrode structure is near one end of the electrical lead, and includes a monopolar electrode, a backing material having an effective surface area larger than the electrode, and a releasable pivotable interface to mate with an implant tool. The electrode is configured for implantation on an outer surface of a blood vessel and the control system is programmed to deliver a baroreflex therapy via the monopolar electrode to a baroreceptor within a wall of the blood vessel.
摘要:
Illustrated is a system and method to retrieve a list that includes at least one contact, from a social network platform. The system and method to build a contact object for the at least one contact, the contact object including an avatar representing the at least one contact. Additionally, the system and method to retrieve update data for the at least one contact object over a period of time. Further, the system and method to display the avatar and the update data associated with the at least one contact object.