Cardiac stimulation apparatus and method for the control of hypertension
First Claim
1. An implantable heart muscle stimulator device for treating a blood pressure disorder in a patient, the patient having a pretreatment systemic blood pressure corresponding to a pretreatment cardiac ejection profile, the device comprising:
- at least one lead configured to be in electrical communication with a cardiac chamber of the patient'"'"'s heart; and
an electrical stimulator in electrical communication with the at least one lead and comprising a non-transitory computer-readable medium programmed to deliver through the at least one lead a stimulation pattern timed relative to the patient'"'"'s cardiac ejection cycle that alters a pretreatment contraction timing between at least two cardiac chambers, reduces atrioventricular delay in the patient'"'"'s cardiac election cycle, and causes, between the at least two cardiac chambers, a dyssynchrony that alters the patient'"'"'s cardiac ejection profile from the pretreatment cardiac ejection profile and reduces the patient'"'"'s systemic blood pressure from the pretreatment systemic blood pressure.
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Accused Products
Abstract
A method that electrically stimulates a heart muscle to alter the ejection profile of the heart, to control the mechanical function of the heart and reduce the observed blood pressure of the patient. The therapy may be invoked by an implantable blood pressure sensor associated with a pacemaker like device. In some cases, where a measured pretreatment blood pressure exceeds a treatment threshold, a patient'"'"'s heart may be stimulated with an electrical stimulus timed relative to the patient'"'"'s cardiac ejection cycle. This is done to cause dyssynchrony between at least two cardiac chambers or within a cardiac chamber, which alters the patient'"'"'s cardiac ejection profile from a pretreatment cardiac ejection profile. This has the effect of reducing the patient'"'"'s blood pressure from the measured pretreatment blood pressure.
100 Citations
33 Claims
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1. An implantable heart muscle stimulator device for treating a blood pressure disorder in a patient, the patient having a pretreatment systemic blood pressure corresponding to a pretreatment cardiac ejection profile, the device comprising:
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at least one lead configured to be in electrical communication with a cardiac chamber of the patient'"'"'s heart; and an electrical stimulator in electrical communication with the at least one lead and comprising a non-transitory computer-readable medium programmed to deliver through the at least one lead a stimulation pattern timed relative to the patient'"'"'s cardiac ejection cycle that alters a pretreatment contraction timing between at least two cardiac chambers, reduces atrioventricular delay in the patient'"'"'s cardiac election cycle, and causes, between the at least two cardiac chambers, a dyssynchrony that alters the patient'"'"'s cardiac ejection profile from the pretreatment cardiac ejection profile and reduces the patient'"'"'s systemic blood pressure from the pretreatment systemic blood pressure. - 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)
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29. An implantable heart muscle stimulator device for treating a blood pressure disorder in a patient, the patient having a pretreatment systemic blood pressure corresponding to a pretreatment cardiac ejection profile, the device comprising:
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at least one lead configured to be in electrical communication with a cardiac chamber of the patient'"'"'s heart; and an electrical stimulator in electrical communication with the at least one lead and comprising a non-transitory computer-readable medium programmed to deliver through the at least one lead a stimulation pattern timed relative to the patient'"'"'s cardiac ejection cycle that alters a pretreatment contraction timing between atrial and ventricular chambers, reduces atrioventricular delay in the patient'"'"'s cardiac election cycle, and causes, between the atrial and ventricular chambers, a dyssynchronous timing that alters the patient'"'"'s cardiac ejection profile from the pretreatment cardiac ejection profile and reduces the patient'"'"'s systemic blood pressure from the pretreatment systemic blood pressure. - View Dependent Claims (30, 31, 32, 33)
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Specification