Subcutaneous cardiac rhythm management with asystole prevention therapy
First Claim
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1. A system, comprising:
- detection circuitry;
energy delivery circuitry capable of delivering a plurality of cardiac therapies comprising at least a tachycardia therapy, a bradycardia therapy, and an asystole prevention therapy;
therapy instructions stored in the energy delivery circuitry, the therapy instructions executable to direct delivery of the plurality of cardiac therapies;
one or more electrodes configured for subcutaneous, non-intrathoracic placement in a patient and for coupling to the detection circuitry and energy delivery circuitry;
detection circuitry configured to receive cardiac signals using the one or more electrodes and detect a tachycardia condition, a bradycardia condition, and an asystole condition using the cardiac signals;
a controller coupled to the detection circuitry and energy delivery circuitry, the controller, in response to a cardiac condition requiring treatment, executing at least some of the therapy instructions to coordinate delivery of a selected one of the tachycardia, bradycardia, and asystole prevention therapies, the asystole prevention therapy being delivered at a rate below that of the bradycardia therapy and at 20 pulses per minute or less upon detection of the asystole condition;
a patient-external communications device configured to receive data relating to the selected one of the tachycardia, bradycardia, and asystole prevention therapies, wherein the patient-external communications device facilitates communication with a network or server system; and
a display coupled to the patient-external communications device for displaying the received data.
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Abstract
Systems and methods provide for sensing of cardiac activity from a subcutaneous, non-intrathoracic location, and detecting a cardiac condition necessitating treatment in response to the sensed cardiac activity. One of a number of cardiac therapies may be selectively delivered to treat the detected cardiac condition, such cardiac therapies including at least a tachycardia therapy, a bradycardia therapy, and an asystole prevention therapy.
268 Citations
61 Claims
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1. A system, comprising:
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detection circuitry; energy delivery circuitry capable of delivering a plurality of cardiac therapies comprising at least a tachycardia therapy, a bradycardia therapy, and an asystole prevention therapy; therapy instructions stored in the energy delivery circuitry, the therapy instructions executable to direct delivery of the plurality of cardiac therapies; one or more electrodes configured for subcutaneous, non-intrathoracic placement in a patient and for coupling to the detection circuitry and energy delivery circuitry; detection circuitry configured to receive cardiac signals using the one or more electrodes and detect a tachycardia condition, a bradycardia condition, and an asystole condition using the cardiac signals; a controller coupled to the detection circuitry and energy delivery circuitry, the controller, in response to a cardiac condition requiring treatment, executing at least some of the therapy instructions to coordinate delivery of a selected one of the tachycardia, bradycardia, and asystole prevention therapies, the asystole prevention therapy being delivered at a rate below that of the bradycardia therapy and at 20 pulses per minute or less upon detection of the asystole condition; a patient-external communications device configured to receive data relating to the selected one of the tachycardia, bradycardia, and asystole prevention therapies, wherein the patient-external communications device facilitates communication with a network or server system; and a display coupled to the patient-external communications device for displaying the received data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system, comprising:
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a housing configured for subcutaneous, non-intrathoracic placement relative to a patient; energy delivery circuitry provided in the housing and capable of delivering each of a tachycardia therapy, a bradycardia therapy, and an asystole prevention therapy; therapy instructions stored in the energy delivery circuitry, the therapy instructions executable to direct delivery of the tachycardia therapy, the bradycardia therapy, and the asystole prevention therapy, the asystole prevention therapy comprising a pacing rate lower than that associated with the bradycardia therapy and 20 pulses per minute or less; one or more electrodes configured for subcutaneous, non-intrathoracic placement and coupled to the detection circuitry and energy delivery circuitry; detection circuitry provided in the housing and configured to receive cardiac signals using the one or more electrodes and to detect a tachycardia condition, a bradycardia condition, and an asystole condition using the cardiac signals; a controller provided in the housing and coupled to the detection circuitry and energy delivery circuitry, the controller, in response to a cardiac condition requiring treatment, executing at least some of the therapy instructions to direct delivery of a selected one of the tachycardia, bradycardia, and asystole prevention therapies in response to detection of a corresponding one of the tachycardia condition, the bradycardia condition, and the asystole condition, respectively; a patient-external communications device configured to receive data relating to the selected one of the tachycardia, bradycardia, and asystole prevention therapies, wherein the patient-external communications device facilitates communication with a network or server system; and a display coupled to the patient-external communications device for displaying the received data. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method, comprising:
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sensing cardiac activity from a subcutaneous, non-intrathoracic location of a patient; detecting one of a plurality of cardiac conditions, each cardiac condition necessitating treatment in response to the sensed cardiac activity, the plurality of cardiac conditions comprising a tachycardia condition, a bradycardia condition, and an asystole condition; delivering, in response to detecting a corresponding one of the plurality of cardiac conditions, one of a plurality of available cardiac therapies to treat the detected corresponding cardiac condition, the plurality of cardiac therapies comprising at least a tachycardia therapy, a bradycardia therapy, and an asystole prevention therapy, the asystole prevention therapy comprising a pacing rate lower than that associated with the bradycardia therapy and 20 pulses per minute or less; transmitting data relating to the delivered one of the tachycardia, bradycardia, and asystole prevention therapies to a patient-external communications device, wherein the patient-external communications device facilitates communication with a network or server system; and displaying the data transmitted to the patient-external communications device. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A system, comprising:
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means for sensing cardiac activity from a subcutaneous, non-intrathoracic location of a patient; means for detecting one of a plurality of cardiac conditions, each cardiac condition necessitating treatment in response to the sensed cardiac activity, the plurality of cardiac conditions comprising a tachycardia condition, a bradycardia condition, and an asystole condition; means for delivering, in response to detecting a corresponding one of the plurality of cardiac conditions, one of a plurality of cardiac therapies to treat the detected corresponding cardiac condition, the plurality of cardiac therapies comprising at least a tachycardia therapy, a bradycardia therapy, and an asystole prevention therapy, all of which can be delivered by the system, the asystole prevention therapy comprising a pacing rate lower than that associated with the bradycardia therapy and 20 pulses per minute or less; means for transmitting data relating to the delivered one of the tachycardia, bradycardia, and asystole prevention therapies to a patient-external communications device, wherein the patient-external communications device facilitates communication with a network or server system; and means for displaying the data transmitted to the patient-external communications device. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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Specification