20240050015. SYSTEM AND METHOD FOR MAPPING ARRHYTHMIC DRIVER SITES simplified abstract (St. Jude Medical, Cardiology Division, Inc.)

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SYSTEM AND METHOD FOR MAPPING ARRHYTHMIC DRIVER SITES

Organization Name

St. Jude Medical, Cardiology Division, Inc.

Inventor(s)

Don Curtis Deno of Andover MN (US)

Steve Kim of New York NY (US)

Fikri Goksu of Arden Hills MN (US)

Thomas Hartley of Menomonie WI (US)

SYSTEM AND METHOD FOR MAPPING ARRHYTHMIC DRIVER SITES - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240050015 titled 'SYSTEM AND METHOD FOR MAPPING ARRHYTHMIC DRIVER SITES

Simplified Explanation

The abstract describes a method for mapping arrhythmic foci and other driver sites in the heart using a multi-dimensional catheter. The catheter has three or more electrodes that can be used to identify maximum bipolar voltage and average unipolar voltage in a cardiac location. The ratio of the average unipolar voltage to the maximum bipolar voltage can indicate whether the location is an arrhythmic focus. Alternatively, an evaluation region can be defined around a location in the heart, and a focus score can be computed based on the consistency of rod orientation within the region.

  • The innovation is a multi-dimensional catheter that can map arrhythmic foci and driver sites in the heart.
  • The catheter has three or more electrodes that can measure maximum bipolar voltage and average unipolar voltage.
  • The ratio of average unipolar voltage to maximum bipolar voltage can indicate if a location is an arrhythmic focus.
  • An evaluation region can be defined around a location in the heart.
  • Rods with e-field loops are associated with each electrode in the evaluation region.
  • The rods are defined by the maximum amplitude bipole axes.
  • The focus score for the evaluation region reflects the consistency of rod orientation within the region.

Potential applications of this technology:

  • Diagnosis and treatment of cardiac arrhythmias.
  • Identification of arrhythmic foci and driver sites in the heart.
  • Mapping and localization of abnormal electrical activity in the heart.

Problems solved by this technology:

  • Difficulty in accurately mapping arrhythmic foci and driver sites in the heart.
  • Limited information provided by traditional mapping systems.
  • Inefficient identification of arrhythmic locations.

Benefits of this technology:

  • Improved accuracy in mapping arrhythmic foci and driver sites.
  • Enhanced understanding of abnormal electrical activity in the heart.
  • More targeted and effective treatment of cardiac arrhythmias.


Original Abstract Submitted

arrhythmic foci and other driver sites can be mapped using a multi-dimensional catheter. for instance, using a clique of three or more electrodes on the multi-dimensional catheter, an electroanatomical mapping system can identify a maximum bipolar voltage and an average unipolar voltage. the ratio of the average unipolar voltage to the maximum bipolar voltage can be interpreted as an indication of whether a cardiac location is an arrhythmic focus. alternatively, an evaluation region can be defined about location in the patient's heart. the evaluation includes a plurality of rods, each associated with a respective e-field loop having a respective maximum and minimum amplitude bipole axes, with the rods being defined by the maximum amplitude bipole axes. for a sufficient number of rods within the evaluation region, a focus score for the evaluation region can be computed to reflect rod orientation consistency within the evaluation region.

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