PRE-EJECTION INTERVAL (PEI) MONITORING DEVICES, SYSTEMS AND METHODS
First Claim
1. For use with an implantable system, a method for monitoring a patient'"'"'s pre-ejection interval (PEI), the method comprising:
- (a) using one or more electrodes implanted within and/or on the patient'"'"'s heart to obtain a signal indicative of cardiac electrical activity;
(b) using an implanted sensor to obtain a signal indicative of changes in arterial blood volume;
(c) detecting a predetermined feature of the signal indicative of cardiac electrical activity;
(d) detecting a predetermined feature of the signal indicative of changes in arterial blood volume;
(e) determining an interval between the predetermined feature of the signal indicative of cardiac electrical activity and the predetermined feature of the signal indicative of changes in arterial blood volume; and
(f) monitoring the patient'"'"'s PEI based on the interval.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided herein are implantable systems, and methods for use therewith, for monitoring a patient'"'"'s pre-ejection interval (PEI). A signal indicative of cardiac electrical activity and a signal indicative of changes in arterial blood volume are obtained. One or more predetermined features of the signal indicative of cardiac electrical activity and the signal indicative of changes in arterial blood volume are detected. The patient'"'"'s PEI is determined by determining an interval between the predetermined feature of the signal indicative of cardiac electrical activity and the predetermined feature of the signal indicative of changes in arterial blood volume.
33 Citations
18 Claims
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1. For use with an implantable system, a method for monitoring a patient'"'"'s pre-ejection interval (PEI), the method comprising:
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(a) using one or more electrodes implanted within and/or on the patient'"'"'s heart to obtain a signal indicative of cardiac electrical activity; (b) using an implanted sensor to obtain a signal indicative of changes in arterial blood volume; (c) detecting a predetermined feature of the signal indicative of cardiac electrical activity; (d) detecting a predetermined feature of the signal indicative of changes in arterial blood volume; (e) determining an interval between the predetermined feature of the signal indicative of cardiac electrical activity and the predetermined feature of the signal indicative of changes in arterial blood volume; and (f) monitoring the patient'"'"'s PEI based on the interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable system capable of monitoring a patient'"'"'s pre-ejection interval (PEI), comprising
one or more electrodes configured to obtain a signal indicative of cardiac electrical activity; -
an implantable sensor configured to obtain a signal that is indicative of changes in arterial volume; a PEI monitor configured to detect a predetermined feature of the signal indicative of cardiac electrical activity, detect a predetermined feature of the signal indicative of changes in arterial blood volume, determine an interval between the predetermined feature of the signal indicative of cardiac electrical activity and the predetermined feature of the signal indicative of changes in arterial blood volume, and monitor the patient'"'"'s PEI based on the interval. - View Dependent Claims (13, 14, 15, 16, 17)
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18. For use with an implantable system, a method for monitoring a patient'"'"'s pre-ejection interval (PEI), the method comprising:
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(a) obtaining a signal indicative of changes in arterial blood volume; and (b) monitoring the patient'"'"'s PEI based on the signal indicative of changes in arterial blood volume.
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Specification