Systems and methods for myocardial ischemia detection
First Claim
1. An implantable medical device comprising:
- control circuitry;
an electrical field sensor in communication with the control circuitry, the electrical field sensor configured to generate a signal corresponding to cardiac electrical fields;
a chemical sensor in communication with the control circuitry, the chemical sensor configured to generate a signal corresponding to the concentration of a physiological analyte that affects cardiac electrical field waveform morphology; and
a template bank;
the control circuitry configured to monitor for the presence of myocardial ischemia by evaluating both the signal generated by the electrical field sensor and the signal generated by the chemical sensor;
the control circuitry configured to generate a cardiac electrical field morphological template including data from the signal corresponding to cardiac electrical fields and chemical concentration data from the signal corresponding to the concentration of potassium and store the cardiac electrical field morphological template in the template bank;
wherein the control circuitry stores the cardiac electrical field template as a hypo-level template if the potassium concentration is abnormally high, a normal level template if the potassium concentration is normal, and a hyper-level template if the potassium concentration is abnormally high.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments of the invention are related to devices and methods for myocardial ischemia detection, amongst other things. In an embodiment, the invention includes an implantable medical device including control circuitry, an electrical field sensor in communication with the control circuitry, the electrical field sensor configured to generate a signal corresponding to cardiac electrical fields. The implantable medical device can also include a chemical sensor in communication with the control circuitry, the chemical sensor configured to generate a signal corresponding to the concentration of a physiological analyte that affects cardiac electrical field waveform morphology. The control circuitry can be configured to monitor for the presence of myocardial ischemia by evaluating both the signal generated by the electrical field sensor and the signal generated by the chemical sensor. Other embodiments are also included herein.
-
Citations
14 Claims
-
1. An implantable medical device comprising:
-
control circuitry; an electrical field sensor in communication with the control circuitry, the electrical field sensor configured to generate a signal corresponding to cardiac electrical fields; a chemical sensor in communication with the control circuitry, the chemical sensor configured to generate a signal corresponding to the concentration of a physiological analyte that affects cardiac electrical field waveform morphology; and a template bank; the control circuitry configured to monitor for the presence of myocardial ischemia by evaluating both the signal generated by the electrical field sensor and the signal generated by the chemical sensor;
the control circuitry configured to generate a cardiac electrical field morphological template including data from the signal corresponding to cardiac electrical fields and chemical concentration data from the signal corresponding to the concentration of potassium and store the cardiac electrical field morphological template in the template bank;
wherein the control circuitry stores the cardiac electrical field template as a hypo-level template if the potassium concentration is abnormally high, a normal level template if the potassium concentration is normal, and a hyper-level template if the potassium concentration is abnormally high. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification