Using implanted sensors for feedback control of implanted medical devices
First Claim
1. A system for administering a therapeutic treatment, the system comprising:
- a pressure sensor adapted for positioning in the pulmonary artery and collecting data representative of at least one of systolic pressure, diastolic pressure, pulse pressure, heart rate or pre-ejection period based on pressure in the pulmonary artery;
an implantable medical device located remotely from the sensor;
a control module operatively coupled to the implantable medical device; and
communication means for communicating pressure data from the pressure sensor to the control module, wherein the control module is adapted for relating the at least one of systolic pressure., diastolic pressure, pulse pressure, heart rate or pre-ejection period to a pre-programmed value, adjusting an operating parameter of the implantable medical device based on the relationship of the at least one of systolic pressure, diastolic pressure, pulse pressure, heart rate or pre-ejection period to the pre-programmed value, and repeating this process until the relationship is such that no adjustment is necessary.
1 Assignment
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Accused Products
Abstract
A system and method for administering a therapeutic treatment to the heart includes a pressure sensor positioned in the pulmonary artery, an implantable medical device located remotely from the sensor, and communication means for communicating pressure data from the pressure sensor to the implantable medical device. The system includes a control module operatively coupled to the implantable medical device. The control module is adapted for comparing the pulmonary arterial pressure data to a pre-programmed value, adjusting an operating parameter of the implantable medical device based on the relationship of the pulmonary arterial pressure to the pre-programmed value, and repeating this process until the relationship between the pulmonary arterial pressure data and the pre-programmed value is such that no adjustment is necessary.
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Citations
21 Claims
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1. A system for administering a therapeutic treatment, the system comprising:
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a pressure sensor adapted for positioning in the pulmonary artery and collecting data representative of at least one of systolic pressure, diastolic pressure, pulse pressure, heart rate or pre-ejection period based on pressure in the pulmonary artery;
an implantable medical device located remotely from the sensor;
a control module operatively coupled to the implantable medical device; and
communication means for communicating pressure data from the pressure sensor to the control module, wherein the control module is adapted for relating the at least one of systolic pressure., diastolic pressure, pulse pressure, heart rate or pre-ejection period to a pre-programmed value, adjusting an operating parameter of the implantable medical device based on the relationship of the at least one of systolic pressure, diastolic pressure, pulse pressure, heart rate or pre-ejection period to the pre-programmed value, and repeating this process until the relationship is such that no adjustment is necessary. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of administering a therapeutic treatment to the heart, the method comprising:
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sensing pulmonary arterial pressure from within the pulmonary artery with an implanted sensor;
communicating data representative of the sensed pulmonary arterial pressure from the sensor to an implanted medical device;
calculating a pre-ejection period from the data;
determining if the pre-ejection period is changing in relation to previously calculated pre-ejection periods; and
if the pre-ejection period is changing, adjusting the heart rate with the implantable medical device based on a pre-programmed relationship between the pre-ejection period and the cardiac cycle length. - View Dependent Claims (13, 14, 15)
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16. A method of administering a therapeutic treatment to the heart, the method comprising:
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sensing pulmonary arterial diastolic pressure from within the pulmonary artery with an implanted sensor;
communicating data representative of the sensed pulmonary arterial pressure from the sensor to an implanted medical device;
comparing the pulmonary arterial diastolic pressure to a pre-programmed value; and
limiting increases in the heart'"'"'s pacing rate with the implantable medical device to maintain pulmonary arterial diastolic pressure below the pre-programmed value. - View Dependent Claims (17, 18)
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19. A method of administering a therapeutic treatment to the heart, the method comprising:
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sensing pulmonary arterial pressure from within the pulmonary artery with an implanted sensor;
communicating data representative of the sensed pulmonary arterial pressure from the sensor to an implanted medical device;
calculating heart rate, systolic and/or pulse pressure;
determining if, based on heart rate and systolic and/or pulse pressure, (1) a ventricular arrhythmia is occurring, and (2) if so, whether the ventricular arrhythmia is potentially lethal;
administering a defibrillation shock with the implantable medical device if a ventricular arrhythmia is occurring and is considered lethal; and
administering an anti-tachy pacing protocol with the implantable medical device if a ventricular arrhythmia is occurring and is not considered lethal. - View Dependent Claims (20, 21)
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Specification