公开(公告)号：US10888237B2

公开(公告)日：2021-01-12

申请号：US16111092

申请日：2018-08-23

Applicant: Karlsruhe Institute of Technology

Inventor： Tobias Oesterlein ,  Olaf Dössel ,  Daniel Frisch ,  Axel Loewe ,  Gustavo Lenis ,  Nicolas Pilia

IPC: A61B5/04 ,  A61B5/0456 ,  A61B5/042 ,  A61B5/00 ,  A61B5/1455 ,  A61B5/0452

Abstract: A computer system for determining Ventricular Far Field contribution in atrial electrograms of a patient. The system includes an interface module configured to receive a plurality of electrical signals generated by a plurality of sensors wherein the plurality of electrical signals relate to a plurality of locations in an atrium of the patient; a reference module configured to determine a reference signal reflecting electrical excitation of the patient's ventricles; and a data processing module. The data processing module is configured to select from the plurality of the received electrical signals such electrical signals which are recorded a number of conditions. The data processing module is further configured to determine a spatio-temporal distribution of the Ventricular Far Field inside the atrium by approximating the spatio-temporal distribution (VFFc) based on signal data of the selected signals by using an approximation model.

公开(公告)号：US11109788B2

公开(公告)日：2021-09-07

申请号：US15651888

申请日：2017-07-17

Applicant: BIOSENSE WEBSTER (ISRAEL) LTD. ,  Karlsruhe Institute of Technology

Inventor： Markus Rottmann ,  Olaf Dössel ,  Meir Bar-Tal ,  Yaniv Ben Zrihem

IPC: A61B5/042 ,  A61B5/287 ,  A61B5/00 ,  A61M25/00

Abstract: A catheter has a mapping assembly having a plurality of splines mounted at its distal portion. The splines each have a proximal end disposed at the distal portion of the catheter body and a distal end and configured as a Fibonacci spiral arm that diverges outwardly from the proximal end. The splines have a support arm with shape memory, a non-conductive covering in surrounding relation to the support arm, at least one location sensor mounted at or near the distal end, a plurality of electrodes mounted in surrounding relation to the non-conductive covering, and a plurality of electrode lead wires extending within the non-conductive covering. Each electrode lead wire is attached to a corresponding one of the electrodes.

公开(公告)号：US20190059765A1

公开(公告)日：2019-02-28

申请号：US16111092

申请日：2018-08-23

Applicant: Karlsruhe Institute of Technology

Inventor： Tobias Oesterlein ,  Olaf Dössel ,  Daniel Frisch ,  Axel Loewe ,  Gustavo Lenis ,  Nicolas Pilia

IPC: A61B5/04 ,  A61B5/0456 ,  A61B5/1455 ,  A61B5/00 ,  A61B5/042

Abstract: A computer system for determining Ventricular Far Field contribution in atrial electrograms of a patient. The system includes an interface module configured to receive a plurality of electrical signals generated by a plurality of sensors wherein the plurality of electrical signals relate to a plurality of locations in an atrium of the patient; a reference module configured to determine a reference signal reflecting electrical excitation of the patient's ventricles; and a data processing module. The data processing module is configured to select from the plurality of the received electrical signals such electrical signals which are recorded a number of conditions. The data processing module is further configured to determine a spatio-temporal distribution of the Ventricular Far Field inside the atrium by approximating the spatio-temporal distribution (VFFc) based on signal data of the selected signals by using an approximation model.