Anti-arrhythmic device and a method of delivering anti-arrhythmic cardiac therapy
First Claim
1. A method of applying a plurality of cardiac contractility modulating electrical signals to the heart, the method comprising:
- calculating a level of arrhythmia prevalence by counting a plurality of arrhythmic episodes in said heart during a given period;
comparing between said level of arrhythmia prevalence and a value representing a level of arrhythmia prevalence of arrhythmia to be treated; and
applying, in response to an outcome of said comparing, one or more of said plurality of cardiac contractility modulating electrical signals to said heart for reducing said level of arrhythmia prevalence,wherein said cardiac contractility modulating electrical signals are capable of increasing contractility of cardiac muscle cells of the heart.
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Accused Products
Abstract
A cardiac contractility modulating (CCM) device (30) includes an anti-arrhythmic therapy unit (38) for detecting a cardiac arrhythmia in a heart (2) of a patient based on processing electrical signals related to cardiac activity sensed at the heart, and for delivering anti-arrhythmic therapy to the heart. The device includes a cardiac contractility modulating (CCM) unit (40) capable of delivering cardiac contractility modulating (CCM) signals to the heart for modulating the contractility of a portion of the heart. The device (30) includes a power source (165). The device may be an implantable device or a non-implantable device. A method for delivering anti-arrhythmic therapy to a heart. The method includes applying one or more non-excitatory cardiac contractility modulating electrical signals to said heart.
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Citations
61 Claims
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1. A method of applying a plurality of cardiac contractility modulating electrical signals to the heart, the method comprising:
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calculating a level of arrhythmia prevalence by counting a plurality of arrhythmic episodes in said heart during a given period; comparing between said level of arrhythmia prevalence and a value representing a level of arrhythmia prevalence of arrhythmia to be treated; and applying, in response to an outcome of said comparing, one or more of said plurality of cardiac contractility modulating electrical signals to said heart for reducing said level of arrhythmia prevalence, wherein said cardiac contractility modulating electrical signals are capable of increasing contractility of cardiac muscle cells of the heart. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of applying anti-arrhythmic therapy to a heart, the method comprising:
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sensing in or about a heart electrical signals related to cardiac activity of said heart; calculating a level of arrhythmia prevalence by counting a plurality of arrhythmic episodes in said heart during a given period; processing said electrical signals to obtain data representative of the heart rate of said heart; processing said data to detect a cardiac tachy-arrhythmia or an indication of a possible tachy-arrhythmia in said heart; and in response to said processing, reducing said level of arrhythmia prevalence by repetitively applying one or more non-excitatory cardiac contractility increasing electrical signals to said heart, said applying being performed in response to detecting said tachy-arrhythmia or said indication, wherein said non-excitatory cardiac contractility increasing electrical signals are capable of increasing contractility of cardiac muscle cells of the heart for said anti-arrhythmic therapy. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for reducing the prevalence of arrhythmic episodes in a heart, the method comprising:
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calculating a level of arrhythmia prevalence by counting a plurality of arrhythmic episodes in said heart during a given period; comparing between said level of arrhythmia prevalence and a value representing a level of arrhythmia prevalence of arrhythmia to be treated; and reducing said level of arrhythmia prevalence by applying one or more non-excitatory cardiac contractility, increasing electrical signals to at least a portion of said heart; wherein said non-excitatory cardiac contractility increasing electrical signals are capable of increasing contractility of cardiac muscle cells of the heart. - View Dependent Claims (27, 28, 29)
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30. A method of applying non-excitatory cardiac contractility increasing signals to the heart as an anti-arrhythmic therapy, the method comprising:
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calculating a level of arrhythmia prevalence by counting a plurality of arrhythmic episodes in said heart during a given period; comparing between said level of arrhythmia prevalence and a value representing a level of arrhythmia prevalence of arrhythmia to be treated; detecting a cardiac tachy-arrhythmia or an indication of a possible tachy-arrhythmia in said heart according to said comparison; and reducing, in response to said detection, said level of arrhythmia prevalence by applying one or more of said non-excitatory cardiac contractility increasing signals to said heart in response to detecting said tachy-arrhythmia or said indication in said detecting, wherein said non-excitatory cardiac contractility increasing electrical signals are capable of increasing contractility of cardiac muscle cells of the heart for said anti-arrhythmic therapy.
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31. An anti-arrhythmic device for delivering anti-arrhythmic non-excitatory cardiac contractility increasing signal therapy to a heart, the device comprising:
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a tachy-arrhythmia detecting unit configured for receiving and processing electrical cardiac signals related to cardiac activity sensed at said heart, calculating a level of arrhythmia prevalence by counting a plurality of arrhythmic episodes in said heart during a given period based on said processing electrical cardiac signals, and comparing between said level of arrhythmia prevalence and an initiation threshold; a cardiac contractility modulating unit configured for delivering non-excitatory cardiac contractility increasing electrical signals to said heart in response to said comparing; and a controller unit operatively connected to said tachy-arrhythmia detecting unit and to said cardiac contractility modulating unit, said controller unit being configured for controlling said cardiac contractility modulating unit to deliver one or more of said non-excitatory cardiac contractility increasing electrical signals to said heart in response to said level of arrhythmia prevalence, wherein said non-excitatory cardiac contractility increasing electrical signals are capable of increasing contractility of cardiac muscle cells of the heart for an anti-arrhythmic therapy. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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40. An anti-arrhythmic device for delivering anti-arrhythmic non-excitatory cardiac contractility increasing signal therapy to a heart, the device comprising:
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a tachy-arrhythmia detecting unit configured for receiving and processing electrical cardiac signals related to cardiac activity sensed at said heart during a given period; calculating a level of arrhythmia prevalence by counting a plurality of arrhythmic episodes in said heart based on processing said electrical cardiac signals and comparing between said level of arrhythmia prevalence and an initiation threshold to detect one or more events selected from a cardiac tachy-arrhythmia and an indication of a possible tachy-arrhythmia; a cardiac contractility modulating unit configured for delivering non-excitatory cardiac contractility increasing electrical signals to said heart and an anti-arrhythmic therapy in response to said determination; and a controller unit operatively connected to said tachy-arrhythmia detecting unit and to said cardiac contractility modulating unit, said controller unit is configured for receiving from said tachy-arrhythmia detecting unit signals representing said one or more events, and for controlling said cardiac contractility modulating unit to deliver a plurality of said non-excitatory cardiac contractility increasing electrical signals to said heart in response to receiving said signals representing said one or more events from said tachy-arrhythmia detecting unit to reduce said level of arrhythmia prevalence, wherein said non-excitatory cardiac contractility increasing electrical signals are capable of increasing contractility of cardiac muscle cells of the heart for said anti-arrhythmic therapy. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. An anti-arrhythmic device for delivering anti-arrhythmic non-excitatory cardiac contractility increasing signal therapy to a heart, the device comprising:
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tachy-arrhythmia detecting means configured for receiving and processing electrical cardiac signals related to cardiac activity sensed at said heart during a given period, calculating a level of arrhythmia prevalence by counting a plurality of arrhythmic episodes in said heart based on processing said electrical cardiac, and comparing between said level of arrhythmia prevalence and an initiation threshold to detect one or more events selected from a cardiac tachy-arrhythmia and an indication of a possible tachy-arrhythmia; cardiac contractility modulating means configured for delivering, in response to said determination, non-excitatory cardiac contractility increasing electrical signals to said heart as an anti-arrhythmic therapy; and controller means operatively connected to said tachy-arrhythmia detecting means and to said cardiac contractility modulating means, said controller means is configured for receiving signals representing the detection of said one or more events from said tachy-arrhythmia detecting means, and for controlling said cardiac contractility modulating means to deliver a plurality of said non-excitatory cardiac contractility increasing electrical signals to said heart in response to the detecting of said one or more events to reduce said level of arrhythmia prevalence, wherein said non-excitatory cardiac contractility increasing electrical signals are capable of increasing contractility of cardiac muscle cells of the heart for said anti-arrhythmic therapy. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60)
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61. An apparatus of applying a plurality cardiac contractility modulating electrical signals to the heart, the apparatus comprising:
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a detection unit configured for calculating a level of arrhythmia prevalence by counting arrhythmic episodes in said heart and comparing between said level of arrhythmia prevalence and a cardiac contractility modulating therapy initiation threshold; and a cardiac contractility modulating unit configured for applying one or more of said plurality of cardiac contractility modulating electrical signals to said heart in response to said comparison for reducing said level of arrhythmia prevalence, wherein said cardiac contractility modulating electrical signals are capable of increasing contractility of cardiac muscle cells of the heart.
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Specification