Multiplexing of high count electrode catheter(s)

Patent metadata

Field	Value
Publication number	US-2020008705-A1
Application number	US-201816030358-A
Country	US
Kind code	A1
Filing date	Jul 9, 2018
Priority date	Jul 9, 2018
Publication date	Jan 9, 2020
Grant date	—

Abstract

A method is disclosed comprising: performing a first scan of an organ using a set of electrodes in a catheter that are currently active; deactivating one or more of the electrodes in the set based on data that is collected as a result of the first scan; tuning the set by at least one of (i) deactivating one or more electrodes in the set that remain active after the deactivating, and (ii) activating one or more electrodes in the catheter that are inactive; performing a second scan of the organ using electrodes in the set that are currently active after the tuning is performed, and generating a map of the organ based on data collected as a result of the second scan; and outputting the map of the organ for presentation to a user.

First claim

What is claimed is:

1 . A method comprising:
performing a first scan of an organ using a set of electrodes in a catheter that are currently active; deactivating one or more of the electrodes in the set based on data that is collected as a result of the first scan; tuning the set by at least one of (i) deactivating one or more electrodes in the set that remain active after the deactivating, and (ii) activating one or more electrodes in the catheter that are inactive; performing a second scan of the organ using electrodes in the set that are currently active after the tuning is performed, and generating a map of the organ based on data collected as a result of the second scan; and outputting the map of the organ for presentation to a user.

2 . The method of claim 1 , wherein the organ is a heart.

3 . The method of claim 1 , wherein deactivating one or more of the electrodes in the set based on data that is collected as a result of the first scan includes deactivating one or more electrodes that are not in physical contact with tissue of the organ that is part of one or more regions of interest in the organ.

4 . The method of claim 1 , wherein deactivating one or more of the electrodes in the set based on data that is collected as a result of the first scan includes deactivating one or more electrodes that are associated with one or more non-conductive regions of the organ.

5 . The method of claim 1 , wherein tuning the set includes:
identifying a region of interest in the organ having an activation index that falls within a predetermined range; and activating a first electrode in the catheter when activating the first electrode causes the activation index of the region of interest to be increased.

6 . The method of claim 5 , further comprising:
detecting an increase in the activation index of the region of interest that results from the first electrode in the catheter being activated; and activating a second electrode in the catheter based on whether the increase in the activation index is less than a threshold.

7 . The method of claim 1 , wherein tuning the set includes reducing the set by deactivating one or more electrodes in the catheter that are currently active based on a wave property of a region of interest in the organ, the wave property including velocity of propagation of action potential impulses across the region of interest.

8 . The method of claim 1 , wherein tuning the set includes reducing the set by deactivating one or more electrodes in the catheter that are currently active based on a wave property of a region of interest in the organ, the wave property including direction of propagation of action potential impulses across the region of interest.

9 . The method of claim 1 , wherein tuning the set includes deactivating a selected first electrode in the catheter that is associated with a region of interest, the first electrode being selected based on an impact which the first electrode has on performance of the catheter with respect to the region of interest.

10 . The method of claim 9 , wherein the first electrode is one that is in direct contact with tissue corresponding to the region of interest or one that is within a predetermined distance from the tissue corresponding to the region of interest.

11 . A diagnostic device, comprising:
an output device; and at least one processor operatively coupled to the output device, the at least one processor being configured to: perform a first scan of an organ using a set of electrodes in a catheter that are currently active; deactivate one or more of the electrodes in the set based on data that is collected as a result of the first scan; tune the set by at least one of (i) deactivating one or more electrodes in the set that remain active after the deactivating, and (ii) activating one or more electrodes in the catheter that are inactive; perform a second scan of the organ using electrodes in the set that are currently active after the tuning is performed, and generating a map of the organ based on data collected as a result of the second scan; and output the map of the organ using the output device.

12 . The diagnostic device of claim 11 , wherein the organ is a heart.

13 . The diagnostic device of claim 11 , wherein deactivating one or more of the electrodes in the set based on data that is collected as a result of the first scan includes deactivating one or more electrodes that are not in physical contact with tissue of the organ that is part of one or more regions of interest in the organ.

14 . The diagnostic device of claim 11 , wherein deactivating one or more of the electrodes in the set based on data that is collected as a result of the first scan includes deactivating one or more electrodes that are associated with one or more non-conductive regions of the organ.

15 . The diagnostic device of claim 11 , wherein tuning the set includes:
identifying a region of interest in the organ having an activation index that falls within a predetermined range; and activating a first electrode in the catheter when activating the first electrode causes the activation index of the region of interest to be increased.

16 . The diagnostic device of claim 15 , further comprising:
detecting an increase in the activation index of the region of interest that results from the first electrode in the catheter being activated; and activating a second electrode in the catheter based on whether the increase in the activation index is less than a threshold.

17 . The diagnostic device of claim 11 , wherein tuning the set includes reducing the set by deactivating one or more electrodes in the catheter that are currently active based on a wave property of a region of interest in the organ, the wave property including velocity of propagation of action potential impulses across the region of interest.

18 . The diagnostic device of claim 11 , wherein tuning the set includes reducing the set by deactivating one or more electrodes in the catheter that are currently active based on a wave property of a region of interest in the organ, the wave property including direction of propagation of action potential impulses across the region of interest.

19 . The diagnostic device of claim 11 , wherein tuning the set includes deactivating a selected first electrode in the catheter that is associated with a region of interest, the first electrode being selected based on an impact which the first electrode has on performance of the catheter with respect to the region of interest.

20 . The diagnostic device of claim 19 , wherein the first electrode is one that is in direct contact with tissue corresponding to the region of interest or one that is within a predetermined distance from the tissue corresponding to the region of interest.

Assignees

• Biosense Webster Israel Ltd

Inventors

• Ziv-Ari Morris
• Benaroya Yoav
• Urman Roy
• Baron Oded

Classifications

• A61B5/6852

  Catheters · CPC title

• A61B2018/00595

  Cauterization · CPC title

• A61B2018/00351

  Heart · CPC title

• A61B18/1492

  having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence) · CPC title

• A61B5/6869

  Heart · CPC title