Method of exploring or mapping internal cardiac structures

• US 10,405,766 B2
• Filed: 09/25/2016
• Issued: 09/10/2019
• Est. Priority Date: 09/26/2015
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Stewart, Brian, Harlev, Doron, Perlman, Mordechai, Hultz, Paul
• Primary Examiner(s): Marlen, Tammie K
• Application Number:
  US15/275,439
• Publication Number:
  US 20170086694A1
• Time in Patent Office: 1,080 Days
• CPC Class Codes: A61B 2562/0209 Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
• CPC Class Codes: A61B 5/287 Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
• CPC Class Codes: A61B 5/316 Modalities, i.e. specific diagnostic methods
• CPC Class Codes: A61B 5/339 Displays specially adapted therefor
• CPC Class Codes: A61B 5/349 Detecting specific parameters of the electrocardiograph cycle
• CPC Class Codes: A61B 5/6858 with a distal basket, e.g. expandable basket
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick

Abstract

Methods and systems for mapping and displaying cardiac structures are disclosed. The method includes sensing cardiac electrical signals at a plurality of points and generating a cardiac map of at least a portion of one or more cardiac structures based on at least a portion of the sensed cardiac electrical signals. A surface map having a corresponding first position relative to the cardiac map is generated. The surface map includes a first surface point, where a first cardiac electrical signal feature is represented on the surface map at the first surface point if a corresponding first cardiac electrical signal is sensed at a point that is located within a threshold distance of the first surface point. The cardiac map and the surface map, at the first position, are displayed. The surface map may be repositioned to a second position.

Claims

1. A method for mapping and displaying internal cardiac structures, the method comprising:

sensing, using a mapping probe, a plurality of cardiac electrical signals at a plurality of points;

generating, using a processing device, a cardiac map of at least a portion of one or more cardiac structures based on at least a portion of the plurality of cardiac electrical signals;

generating, using the processing device, a repositionable surface map having a first position relative to the cardiac map;

displaying, on a display device, the cardiac map;

displaying, on the display device, the repositionable surface map at the first position;

receiving, via a user input device, a user input to reposition the repositionable surface map to a second position; and

displaying, on the display device, the repositionable surface map at the second position in response to the user input.

2. The method of claim 1, the repositionable surface map comprising a first surface point, wherein sensing the plurality of cardiac electrical signals at the plurality of points comprises sensing a first cardiac electrical signal feature of a first cardiac electrical signal of the plurality of cardiac electrical signals at a point that is located within a threshold distance of the first surface point;

and the method further comprising displaying the first cardiac electrical signal feature on the repositionable surface map at the first surface point.

3. The method of claim 2, wherein the first surface point is not located on the cardiac map.

4. The method of claim 2, wherein the first cardiac electrical signal feature is not represented on the cardiac map.

5. The method of claim 2, wherein the first cardiac electrical signal feature comprises at least one of:

an activation time, a minimum voltage value, a maximum voltages value, a maximum negative time-derivative of voltage, an instantaneous potential, a voltage amplitude, a dominant frequency, and a peak-to-peak voltage.

6. The method of claim 2, the repositionable surface map comprising a second surface point, wherein sensing the plurality of cardiac electrical signals at the plurality of points comprises sensing a second cardiac electrical signal feature of a second cardiac electrical signal of the plurality of cardiac electrical signals is sensed at a point that is located within a threshold distance of the second surface point;

and the method further comprising displaying the second cardiac electrical signal feature at the second surface point.

7. The method of claim 1, wherein the repositionable surface map is a plane map.

8. The method of claim 1, further comprising:

receiving a signal to view the repositionable surface map in a quick-view mode and performing less than all of a plurality of display-enhancing functions to render the repositioned surface map in the quick-view mode.

9. The method of claim 1, wherein the repositionable surface map passes through a papillary muscle or a septum of the one or more cardiac structures.