Identification of healthy versus unhealthy substrate for pacing from a multipolar lead
AssigneeMedtronic, Inc.
InventorSubham Ghosh
Life of this patent
Estimating the term…
Abstract
A medical device system performs a method for determining presence of scar tissue through an implanted lead having an electrode for cardiac pacing and sensing. A sensing module senses heart activity with the electrode to produce a unipolar electrogram (EGM) waveform. A processor receives the unipolar EGM waveform and extracts two or more features representative of heart activity at the electrode. Scar tissue is identified at the site of the first electrode based upon at least two of the extracted features indicating scar tissue.
Claims22
A method for determining presence of scar tissue through an implanted lead having a first electrode for cardiac pacing and sensing, the method comprising:
- sensing heart activity with the first electrode to produce a first unipolar electrogram (EGM) waveform;
- extracting by a medical device processor receiving the first unipolar EGM waveform two or more features from the first unipolar EGM waveform representative of heart activity at the electrode;
- and
- identifying scar tissue at a site of the first electrode based upon at least two of the extracted features indicating scar tissue.
A medical device system for determining presence of scar tissue, the system comprising:
- an implanted lead having a first electrode for cardiac pacing and sensing:
- a sensing module for sensing heart activity with the first electrode to produce a first unipolar electrogram (EGM) waveform;
- a processor configured to receive the first unipolar EGM waveform and extract two or more features from the first unipolar EGM waveform representative of heart activity at the electrode and identify scar tissue at a site of the first electrode based upon at least two of the extracted features indicating scar tissue.
A non-transitory, computer-readable storage medium comprising instructions that, when executed, cause a processor included in a medical device system to perform a method for determining a presence of scar tissue through an implanted lead having a first electrode for cardiac pacing and sensing, the method comprising:
- sensing heart activity with the first electrode to produce a first unipolar electrogram (EGM) waveform;
- extracting two or more features from the first unipolar EGM waveform representative of heart activity at the electrode;
- and
- identifying scar tissue at a site of the first electrode based upon at least two of the extracted features indicating scar tissue.
A system for determining presence of scar tissue through an implanted lead having a first electrode for cardiac pacing and sensing, the system comprising:
- sensing means for sensing heart activity with the first electrode to produce a first unipolar electrogram (EGM) waveform;
- processing means for extracting two or more features from the first unipolar EGM waveform representative of heart activity at the electrode;
- and
- processing means for identifying scar tissue at a site of the first electrode based upon at least two of the extracted features indicating scar tissue.
Dependencies are inferred from the claim text.