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 including a lead located remotely in a different body lumen from the sensor, the implantable medical device configured to adjust cardiac pacing therapy delivered to the heart based at least in part on the data from the pressure 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 at least one cardiac pacing parameter relating to cardiac pacing therapy provided by 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.
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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.
395 Citations
19 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 including a lead located remotely in a different body lumen from the sensor, the implantable medical device configured to adjust cardiac pacing therapy delivered to the heart based at least in part on the data from the pressure 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 at least one cardiac pacing parameter relating to cardiac pacing therapy provided by 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)
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11. 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 mean pulmonary artery pressure based on pressure in the pulmonary artery; an implantable medical device including a lead located remotely in a different body lumen from the sensor, the implantable medical device configured to adjust cardiac pacing therapy delivered to the heart based at least in part on the data from the pressure sensor; a control module operatively coupled to the implantable medical device; and communication means for wirelessly communicating pressure data from the pressure sensor to the control module, wherein the control module is adapted for relating the mean pulmonary artery pressure to a pre-programmed value, adjusting at least one cardiac pacing parameter relating to cardiac pacing therapy provided by the implantable medical device based on the relationship of the mean pulmonary artery pressure to the pre-programmed value, the at least one cardiac pacing parameter including a timing or pacing amplitude parameter associated with the cardiac pacing therapy, and repeating this process until the relationship is such that no adjustment is necessary. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of administering a cardiac rhythm management therapy to the heart, the method comprising:
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sensing a number of pulmonary artery pressure readings from within the pulmonary artery; determining a mean pulmonary artery pressure from the pulmonary artery pressure readings; communicating data representative of the mean pulmonary artery pressure from the sensor to an implantable medical device; comparing the mean pulmonary artery pressure to a pre-programmed value; limiting increases in the heart'"'"'s pacing rate by sending a cardiac pacing signal to the heart based at least in part on the sensed data representative of mean pulmonary artery pressure to maintain the mean pulmonary artery pressure below the pre-programmed value; and repeating the process until the relationship between the mean pulmonary artery pressure and the pre-programmed value is such that no adjustment is necessary.
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Specification