# US 10,482,198 B2 · Global mapping catheter contact optimization

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- Number: US 10,482,198 B2
- Document ID: US10482198B2
- Status: Granted
- Kind: B2
- Application number: 16/102,249
- Filed: 2018-08-13
- Published: 2018-12-20
- Granted: 2019-11-19
- Earliest claimed: 2015-12-24
- Assignees: Biosense Webster (Israel) Ltd.
- Applicants: Biosense Webster (Israel) Ltd.
- Inventors: Shmuel Auerbach; Aharon Turgeman
- Web page: https://patentgrep.com/patent/US10482198B2

## CPC

- G06F 30/20: Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30)
- A61B 5/287: Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
- A61B 34/10: Computer-aided planning, simulation or modelling of surgical operations
- A61B 2034/107: {Visualisation of planned trajectories or target regions}
- A61B 2034/108: {Computer aided selection or customisation of medical implants or cutting guides}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Cardiac catheterization is carried out by constructing a left atrial model of a heart of a living subject, selecting a global catheter that is dimensioned to conform to the left atrial model, representing the catheter in the left atrial model; extending the length axis of the catheter in the left atrial model to form an intersection with the foramen ovale, and reporting the intersection as a recommended site of transseptal puncture for insertion of the catheter therethrough.

## Claims

### Claim 1

A method for catheter contact optimization, the method comprising the steps of:
constructing a left atrial model of a heart of a living subject, the heart having a left atrium, an interatrial septum and a foramen ovale in the septum, including forming a three-dimensional bounding box with a center corresponding to a center of mass of the left atrium, the bounding box having a length, width and height;
selecting a global catheter from a database of global catheters that is dimensioned to conform to the left atrial model, the catheter having a length axis, the global catheter having a size that fits within a first predetermined range of the bounding box;
representing the catheter in the left atrial model by mapping the selected catheter to an ellipsoid and determining if the ellipsoid fits within a second predetermined range of the bounding box;
in the left atrial model extending the length axis of the catheter to form an intersection with the foramen ovale; and
reporting the intersection as a recommended site of transseptal puncture for insertion of the catheter therethrough.