Method and apparatus for the setting or adjustment of a cardiac pacemaker
First Claim
1. A method of setting or adjusting a cardiac pacemaker in a patient diagnosed with cardiac asynchrony, which method comprises the steps of:
- i) implanting cardiac pacing wires into at least the right ventricle and the left ventricle of the heart of the patient, ii) continuously monitoring and recording the cardiac output, nominal stroke volume and/or arterial pressure of the patient on a beat-by-beat basis, iii) continuously monitoring and recording the respiratory cycle of the patient, and iv) adjusting the conduction delay between the electronic impulses to the cardiac pacing wires until a synchronization of respiratory changes with changes in the cardiac output, stroke volume or arterial pressure of the patient is obtained.
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Accused Products
Abstract
A method of setting or adjusting a cardiac pacemaker in a patient diagnosed with cardiac asynchrony, which method comprises the steps of: i) implanting cardiac pacing wires into at least the right ventricle and the left ventricle of the heart of the patient, ii) continuously monitoring and recording the cardiac output, nominal stroke volume and/or arterial pressure of the patient on a beat-by-beat basis, iii) continuously monitoring and recording the respiratory cycle of the patient, and iv) adjusting the conduction delay between the electronic impulses to the cardiac pacing wires until a synchronization of respiratory changes with changes in the cardiac output, stroke volume or arterial pressure of the patient is obtained.
41 Citations
25 Claims
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1. A method of setting or adjusting a cardiac pacemaker in a patient diagnosed with cardiac asynchrony, which method comprises the steps of:
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i) implanting cardiac pacing wires into at least the right ventricle and the left ventricle of the heart of the patient, ii) continuously monitoring and recording the cardiac output, nominal stroke volume and/or arterial pressure of the patient on a beat-by-beat basis, iii) continuously monitoring and recording the respiratory cycle of the patient, and iv) adjusting the conduction delay between the electronic impulses to the cardiac pacing wires until a synchronization of respiratory changes with changes in the cardiac output, stroke volume or arterial pressure of the patient is obtained. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 24)
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16. A method of adjusting a cardiac pacemaker having cardiac pacing wires implanted into at least the right ventricle and the left ventricle of the heart of a subject, which method comprises the steps of:
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(x) continuously monitoring and recording the cardiac output, nominal stroke volume and/or arterial pressure of the subject on a beat-by-beat basis, (xi) continuously monitoring and recording the respiratory cycle of the patient, and (xii) adjusting the conduction delay between the electronic impulses to the cardiac pacing wires until a synchronization of respiratory changes with changes in the cardiac output, stroke volume or arterial pressure of the subject is obtained. - View Dependent Claims (17, 19, 20, 21, 22, 23)
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18. (canceled)
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25. An apparatus for setting or adjusting a cardiac pacemaker in a patient diagnosed with asynchrony and having cardiac pacing wires implanted into at least the right ventricle and the left ventricle, which apparatus comprises:
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(A) means for continuously monitoring and recording the cardiac output, nominal stroke volume and/or arterial pressure of the patient;
(B) means for continuously monitoring and recording the respiratory cycle of the patient;
(C) means for adjusting the delay between the electronic impulses to the pacing wires; and
(D) means for determining when a synchronization of the respiratory changes with changes in the cardiac output, stroke volume or arterial pressure is obtained.
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Specification