Level crossing detector for detecting noise, sinus rhythm and ventricular fibrillation in subcutaneous or body surface signals
First Claim
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1. A SubQ ICD electrically coupled to at least one subcutaneous electrode forming a subcutaneous sensing and detection system including a level crossing detector, the detector comprising:
- means for detecting subcutaneous or body surface signals; and
means for determining the type of signal based on said body surface signals to deliver at least one of pacing, cardioversion and defibrillation therapies transthoracically.
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Abstract
A SubQ ICD that is entirely implantable subcutaneously with minimal surgical intrusion into the body of the patient and associated with subcutaneous leads provides distributed cardioversion-defibrillation sense and stimulation electrodes for delivery of cardioversion-defibrillation shock and pacing therapies across the heart when necessary. A level crossing detection system and process is implemented to detect noise, sinus rhythm and ventricular fibrillation in subcutaneous or body surface signals to deliver therapies as needed.
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Citations
20 Claims
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1. A SubQ ICD electrically coupled to at least one subcutaneous electrode forming a subcutaneous sensing and detection system including a level crossing detector, the detector comprising:
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means for detecting subcutaneous or body surface signals; and
means for determining the type of signal based on said body surface signals to deliver at least one of pacing, cardioversion and defibrillation therapies transthoracically. - View Dependent Claims (2, 3)
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4. A SubQ ICD comprising:
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a subcutaneous electrode;
a housing having a curved surface;
a cardioversion/defibrillation circuit located within the housing and having an electrical connection with the electrode. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system of detecting noise, sinus rhythm and ventricular fibrillation based on signals collected from subcutaneous electrodes associated with a SubQ ICD, the system comprising:
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a detection circuit; and
a computer implemented software system in operable data communication with the detection circuit. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification