摘要:
A system and method for measuring the capture threshold of a bipolar lead in order to determine an appropriate value for the stimulus pulse energy to be used with the lead by a cardiac rhythm management device. An appropriate bipolar stimulating configuration can also be determined. The method is particularly useful in testing bipolar leads used to excite the left ventricle such as when delivering cardiac resynchronization therapy.
摘要:
An ICD processing system for acquiring breathing pattern signals from intracardiac electrograms obtained from implantable cardiac devices. The system may include both an implantable ICD device and an external processing system. Both the ICD module and the external processing system processing data to generate a representation for the respiration rate for a patient using intracardiac electrogram data obtained by the ICD device. The ICD module and the external processing module communicate with each other to pass collected patient data from the ICD module to the external processing system. The ICD module and the external processing module process the electrogram data to obtain an processed data representation of the respiration data which is used to estimate the respiration rate.
摘要:
A pacing system delivers cardiac protection pacing to protect the heart from injuries associated with ischemic events. The pacing system detects an ischemic event and, in response, initiates one or more cardiac protection pacing sequences each including alternative pacing and non-pacing periods. In one embodiment, the pacing system initiates a cardiac protection pacing sequence in response to the detection of the onset of an ischemic event, such that a pacing concurrent conditioning therapy is applied during the detected ischemic event.
摘要:
An implanted heart monitor includes sensors that measure various aspects of the heart failure patient's heart. A remote heart monitoring system connects the implanted heart monitor to a care provider, such as a physician. The data provided by the implanted heart monitor permits the care provider to obtain valuable data on the heart in order to make health care decisions affecting the heart failure patient's treatment. In many cases, the measurement of core body temperature and other patient data will enable the care provider to alter the patient's treatment to address the patient's condition. The implanted heart monitor can communicate over a wireless communication link with an external monitor. The implanted heart monitor may be implemented as part of a pacing device (i.e., pace maker) or may be a separate unit devoted to monitoring functions. The external monitor communicates with a monitoring station over a communication link. The monitoring station can operate as a centralized data collection unit, collecting data from multiple external monitors and multiple implanted heart monitors. Various other aspects of a heart failure patient's heart and/or body can be monitored, such as heart rate, blood pH levels, blood CO2 levels, and any other indications of the heart failure patient's activity. Various predetermined thresholds may be set to trigger alarms and/or data reports.
摘要:
An aspect of the present subject matter relates to a baroreflex stimulator. An embodiment of the stimulator includes a pulse generator to provide a baroreflex stimulation signal through an electrode, and a modulator. The modulator modulates the baroreflex stimulation signal to increase the baroreflex stimulation therapy by a predetermined rate of change to lower systemic blood pressure to a target pressure. Other aspects are provided herein.
摘要:
A pacing system for providing optimal hemodynamic cardiac function for parameters such as contractility (peak left ventricle pressure change during systole or LV+dp/dt), or stroke volume (aortic pulse pressure) using system for calculating atrio-ventricular delays for optimal timing of a ventricular pacing pulse. The system providing an option for near optimal pacing of multiple hemodynamic parameters. The system deriving the proper timing using electrical or mechanical events having a predictable relationship with an optimal ventricular pacing timing signal.
摘要:
A pacing system for providing optimal hemodynamic cardiac function for parameters such as contractility (peak left ventricle pressure change during systole or LV+dp/dt), or stroke volume (aortic pulse pressure) using system for calculating atrio-ventricular delays for optimal timing of a ventricular pacing pulse. The system providing an option for near optimal pacing of multiple hemodynamic parameters. The system deriving the proper timing using electrical or mechanical events having a predictable relationship with an optimal ventricular pacing timing signal.
摘要:
Systems and methods for determining the coronary sinus vein branch location of a left ventricle electrode are disclosed. The systems and methods involve detecting the occurrence of electrical events within the patient's heart including sensing one or more of the electrical events with the electrode and then analyzing the electrical events to determine the electrode's position. The determination of electrode position may be used to automatically adjust operating parameters of a VRT device. Furthermore, the determination of electrode position may be made in real-time during installation of the electrode and a visual indication of the electrode position may be provided on a display screen.
摘要:
A pacing system for providing optimal hemodynamic cardiac function for parameters such as contractility (peak left ventricle pressure change during systole or LV+dp/dt), or stroke volume (aortic pulse pressure) using system for calculating atrio-ventricular delays for optimal timing of a ventricular pacing pulse. The system providing an option for near optimal pacing of multiple hemodynamic parameters. The system deriving the proper timing using electrical or mechanical events having a predictable relationship with an optimal ventricular pacing timing signal.
摘要:
An implanted heart monitor includes sensors that measure various aspects of the heart failure patient's heart. A remote heart monitoring system connects the implanted heart monitor to a care provider, such as a physician. The data provided by the implanted heart monitor permits the care provider to obtain valuable data on the heart in order to make health care decisions affecting the heart failure patient's treatment. In many cases, the measurement of core body temperature and other patient data will enable the care provider to alter the patient's treatment to address the patient's condition. The implanted heart monitor can communicate over a wireless communication link with an external monitor. The implanted heart monitor may be implemented as part of a pacing device (i.e., pace maker) or may be a separate unit devoted to monitoring functions. The external monitor communicates with a monitoring station over a communication link. The monitoring station can operate as a centralized data collection unit, collecting data from multiple external monitors and multiple implanted heart monitors. Various other aspects of a heart failure patient's heart and/or body can be monitored, such as heart rate, blood pH levels, blood CO2 levels, and any other indications of the heart failure patient's activity. Various predetermined thresholds may be set to trigger alarms and/or data reports.