Subcutaneous implantable cardiac device system with low defibrillation thresholds and improved sensing
First Claim
1. An implantable system, comprising:
- a defibrillator device subcutaneously implantable superficial to a left atrium of a heart wherein the defibrillator device comprises control logic configured to detect for ventricular fibrillation based on sensed cardiac activity;
a patch device subcutaneously implantable superficial to an apex of the heart, wherein the patch device comprises control logic, wherein the patch device is communicatively coupled with the defibrillator device via a wireless communication linka subcutaneously implantable wire electrically coupling the defibrillation device with the patch device; and
a sensor configured to sense cardiac activity, the sensor communicatively coupled with the defibrillator device through the wire such that sensed cardiac activity is received by the defibrillator device;
wherein in response to the defibrillator device detecting ventricular fibrillation in the heart, the defibrillator device administers a defibrillation shock via the patch device.
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Accused Products
Abstract
A subcutaneous implantable cardiac device system applies defibrillation currents in pathways aligned with the heart'"'"'s own electrical system to decrease defibrillation thresholds. In one implementation, one or more subcutaneous sensors detect ventricular fibrillation. Positioning of subcutaneous sensors and filtering result in improved sensing with reduced noise. A subcutaneous patch component of the system that is in communication with a subcutaneous pacemaker or cardioverter-defibrillator may perform the sensing and apply the defibrillation. The subcutaneous patch may include one or more electrodes that perform both sensing and defibrillation. Variations of the subcutaneous patch may include battery and capacitor for generating onboard defibrillation current and may also include a microprocessor for advanced programmable operation.
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Citations
16 Claims
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1. An implantable system, comprising:
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a defibrillator device subcutaneously implantable superficial to a left atrium of a heart wherein the defibrillator device comprises control logic configured to detect for ventricular fibrillation based on sensed cardiac activity; a patch device subcutaneously implantable superficial to an apex of the heart, wherein the patch device comprises control logic, wherein the patch device is communicatively coupled with the defibrillator device via a wireless communication link a subcutaneously implantable wire electrically coupling the defibrillation device with the patch device; and a sensor configured to sense cardiac activity, the sensor communicatively coupled with the defibrillator device through the wire such that sensed cardiac activity is received by the defibrillator device; wherein in response to the defibrillator device detecting ventricular fibrillation in the heart, the defibrillator device administers a defibrillation shock via the patch device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification