Active can with dedicated defibrillation and sensing electrodes
First Claim
1. An implantable cardiac device, comprising:
- a housing having a first face, a second face, and an edge around the perimeter of the first face and extending from the first face to the perimeter of the second face;
a pulse generator comprising a controller provided in the housing; and
a plurality of electrode assemblies coupled to the pulse generator, the plurality of electrode assemblies comprising;
a first electrode assembly coupled to the housing and configured to sense a cardiac signal;
a second electrode assembly coupled to the housing and configured to deliver a defibrillation pulse; and
an insulating material electrically insulating the first electrode assembly from the second electrode assembly;
wherein the first electrode assembly and the second electrode assembly are arranged on opposite sides of the housing.
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Accused Products
Abstract
Cardiac devices employing an active can and/or electrode assembly with dedicated defibrillation and sensing electrodes. A housing is configured for subcutaneous non-intrathoracic placement in a patient, the housing having a first face and a second face. One of the first and second face is directed away from the patient'"'"'s heart, and the other of the first and second face is directed towards the patient'"'"'s heart. A cardiac arrhythmia may be sensed using an electrode assembly positioned in or on the first face of the housing. A cardiac defibrillation therapy may be delivered to the patient'"'"'s heart using an electrode assembly positioned in or on the second face of the housing in response to the detected arrhythmia.
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Citations
21 Claims
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1. An implantable cardiac device, comprising:
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a housing having a first face, a second face, and an edge around the perimeter of the first face and extending from the first face to the perimeter of the second face;
a pulse generator comprising a controller provided in the housing; and
a plurality of electrode assemblies coupled to the pulse generator, the plurality of electrode assemblies comprising;
a first electrode assembly coupled to the housing and configured to sense a cardiac signal;
a second electrode assembly coupled to the housing and configured to deliver a defibrillation pulse; and
an insulating material electrically insulating the first electrode assembly from the second electrode assembly;
wherein the first electrode assembly and the second electrode assembly are arranged on opposite sides of the housing. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An implantable cardiac stimulation device, comprising:
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a housing configured for subcutaneous non-intrathoracic placement in a patient, the housing comprising a first face and a second face;
energy delivery circuitry provided in the housing;
detection circuitry provided in the housing;
at least one electrode arrangement in or on the second face and coupled to the energy delivery circuitry;
at least one electrode arrangement in or on the first face and coupled to the detection circuitry; and
a processor provided in the housing and coupled to the energy delivery and detection circuitry, the processor configured to detect an arrhythmia using a cardiac signal developed from the at least one first face electrode arrangement, the processor further configured to deliver a therapy that treats the arrhythmia using the at least one second face electrode arrangement. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method, comprising:
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providing a housing configured for subcutaneous non-intrathoracic placement in a patient, the housing comprising a first face and a second face, wherein one of the first and second face is directed away from the patient'"'"'s heart, and the other of the first and second face is directed towards the patient'"'"'s heart;
sensing a cardiac arrhythmia using an electrode assembly positioned in or on the first face of the housing; and
delivering a cardiac defibrillation therapy to the patient'"'"'s heart using an electrode assembly positioned in or on the second face of the housing in response to the detected arrhythmia. - View Dependent Claims (15, 16, 17)
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18. A device, comprising:
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means for sensing a cardiac signal from a patient'"'"'s heart;
means for detecting an arrhythmia using the cardiac signal;
means for delivering a cardiac stimulation therapy to the patient'"'"'s heart in response to the detecting means; and
means for insulating the sensing means from the delivering means;
wherein the means for sensing and the means for delivering are arranged on opposite sides of the insulating means. - View Dependent Claims (19, 20)
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21. A cardiac lead system, comprising:
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a lead body configured for subcutaneous non-intrathoracic placement in a patient;
a non-conductive backing coupled to the lead body, the non-conductive backing comprising a first face and a second face, wherein one of the first and second face is configured to be directed away from the patient'"'"'s heart, and the other of the first and second face is configured to be directed towards the patient'"'"'s heart;
a sensing electrode assembly configured to sense a cardiac signal, the sensing electrode assembly positioned in or on the first face of the non-conductive backing; and
a therapy electrode assembly configured to deliver a cardiac defibrillation therapy to the patient'"'"'s heart, the therapy electrode assembly positioned in or on the second face of the non-conductive backing.
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Specification