Device and algorithm for a combined cardiomyostimulator and a cardiac pacer-carioverter-defibrillator
First Claim
1. An apparatus for stimulating a skeletal muscle grafted about a heart, detecting cardiac events and delivering therapeutic stimulation to the heart comprising:
- means for delivering stimulation to a skeletal muscle grafted about a heart;
means for sensing depolarizations of a patient'"'"'s heart;
means for measuring the intervals separating successive depolarizations of the patient'"'"'s heart;
means for defining first and second interval ranges;
means for determining the number of the measured intervals falling within the first and second interval ranges;
means for inhibiting the means for delivering stimulation to a skeletal muscle grafted about a heart upon the sensing of a depolarization within the first or second interval range;
first means for detecting the occurrence of a first type of arrhythmia when the number of the measured intervals falling within the first interval range equals a first predetermined value;
second means for detecting the occurrence of a second type of an arrhythmia when the number of the intervals falling within the second interval range equals a second predetermined value;
means for delivering to the patient'"'"'s heart a first type of arrhythmia therapy in response to the detection of the first arrhythmia by the first detecting means; and
means for delivering to the patient'"'"'s heart and to the skeletal muscle grafted about the heart a second type of arrhythmia therapy in response to the detection of the second arrhythmia by the second detecting means, the second type of arrhythmia therapy having a cardiac stimulation component and a skeletal muscle component.
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Accused Products
Abstract
A device and algorithm for a combined cardiomyostimulator and a cardiac pacer-cardioverter-defibrillator. In particular the present device operates, in a first embodiment, to deliver stimulation to a skeletal muscle grafted about a heart; sense depolarizations of a patient'"'"'s heart; measure the intervals separating successive depolarizations of the patient'"'"'s heart; define first and second interval ranges; determine the number of the measured intervals falling within the first and second interval ranges; inhibit the delivery of stimulation to a skeletal muscle grafted about a heart upon the sensing of a depolarization within the first or second interval range; detect the occurrence of a first type of arrhythmia when the number of the measured intervals falling within the first interval range equals a first predetermined value; detect the occurrence of a second type of an arrhythmia when the number of the intervals falling within the second interval range equals a second predetermined value; deliver a first type of arrhythmia therapy in response to the detection of the first arrhythmia; and deliver a second type of arrhythmia therapy in response to the detection of the second arrhythmia, the second type of arrhythmia therapy having a cardiac stimulation component and a skeletal muscle component.
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Citations
8 Claims
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1. An apparatus for stimulating a skeletal muscle grafted about a heart, detecting cardiac events and delivering therapeutic stimulation to the heart comprising:
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means for delivering stimulation to a skeletal muscle grafted about a heart; means for sensing depolarizations of a patient'"'"'s heart; means for measuring the intervals separating successive depolarizations of the patient'"'"'s heart; means for defining first and second interval ranges; means for determining the number of the measured intervals falling within the first and second interval ranges; means for inhibiting the means for delivering stimulation to a skeletal muscle grafted about a heart upon the sensing of a depolarization within the first or second interval range; first means for detecting the occurrence of a first type of arrhythmia when the number of the measured intervals falling within the first interval range equals a first predetermined value; second means for detecting the occurrence of a second type of an arrhythmia when the number of the intervals falling within the second interval range equals a second predetermined value; means for delivering to the patient'"'"'s heart a first type of arrhythmia therapy in response to the detection of the first arrhythmia by the first detecting means; and means for delivering to the patient'"'"'s heart and to the skeletal muscle grafted about the heart a second type of arrhythmia therapy in response to the detection of the second arrhythmia by the second detecting means, the second type of arrhythmia therapy having a cardiac stimulation component and a skeletal muscle component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification