Signal delivery through the right ventricular septum
First Claim
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1. Apparatus for applying a signal to a heart of a human subject, comprising:
- one or more electrodes, configured to be passed by a catheter through a vena cava of the subject and coupled to a cardiac site of the right ventricle or the right ventricle septum of the subject;
a circuitry for determining a start time of or a time within a refractory period; and
a control unit, configured to alleviate heart failure of the subject by driving the one or more electrodes to apply to said cardiac site, during said determined refractory period of the site, a signal that directly affects a left ventricle of the heart and is non-excitatory thereto.
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Abstract
A method is provided for use with a human subject. The method includes accessing a cardiac site via a vena cava of the subject, and alleviating heart failure of the subject by applying to the cardiac site, during a refractory period of the site, a refractory-period signal that affects the left ventricle of the subject'"'"'s heart. Other embodiments are also described.
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50 Claims
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1. Apparatus for applying a signal to a heart of a human subject, comprising:
- one or more electrodes, configured to be passed by a catheter through a vena cava of the subject and coupled to a cardiac site of the right ventricle or the right ventricle septum of the subject;
a circuitry for determining a start time of or a time within a refractory period; and
a control unit, configured to alleviate heart failure of the subject by driving the one or more electrodes to apply to said cardiac site, during said determined refractory period of the site, a signal that directly affects a left ventricle of the heart and is non-excitatory thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
- one or more electrodes, configured to be passed by a catheter through a vena cava of the subject and coupled to a cardiac site of the right ventricle or the right ventricle septum of the subject;
Specification