Controlled switching network for electrophysiology procedures

Inventors

Foxall, Thomas G. • Drakulic, Budimir S. • FAKHAR, Sina • VLAJINIC, Branislav

Assignees

Streamex Corp

Abstract

Described herein are embodiments of a switching network for integrating electrophysiology components into an electrophysiology system. These electrophysiology components may include electrophysiology recorder, three-dimensional mapping systems, radio frequency generators, and stimulators. The switching network provides switchable connections, which allow the electrophysiology system to be reconfigured to perform different electrophysiology procedures, such as heart signal recording and mapping, cardiac ablation, or cardiac pacing. A recorder may provide control signals to the switching network to change connections between electrophysiology equipment and a catheter in a patient's heart. The electrophysiology system may control generation of biphasic pulses for use in cardiac pacing. The electrophysiology system may reconfigure the effective size the tip electrode of a split tip catheter.

Core Innovation

The invention provides an electrophysiology switching network configured to integrate a recorder system, a three-dimensional (3D) mapping system, one or more signal delivery systems comprising an ablation generator and/or a stimulator, and a catheter with a patch electrode. The switching network includes a plurality of switches and an electrical switching circuit controlled by a control input signal, which closes and opens selected switches to couple and decouple a catheter connector/3D mapping connector path, a recorder connector path, and one or more signal delivery connectors to the appropriate electrodes and connectors via a set of nodes.

The switching network further includes a first filter switch coupled to a primary ablation node and a second filter switch coupled to a primary ablation connection of the recorder connector, where the control input and the first filter switch and second filter switch couple a filtering control input signal through the electrical switching circuit. In response to a filtering control input signal in a first state, the first filter switch and second filter switch couple the RF prefilter to a first connection of an RF prefilter and a second connection of the RF prefilter.

In response to the filtering control input signal in a second state, the electrical switching circuit decouples the RF prefilter from the primary ablation node and the primary ablation connection and couples the first filter switch to the second filter switch. The described electrophysiology switching network also supports reconfiguration of signal paths to couple and decouple catheter electrodes and a patch electrode to recording and delivery components, and each switch is configured to couple the catheter to a recording system, couple, when in the first state, the catheter to one or more devices selected from a group consisting of a mapping system, an ablation generator, and a stimulator, and decouple, when in the second state, the catheter from the one or more devices.

Claims Coverage

The independent claims are clm-00001 and clm-00007, and they define a switching network for electrophysiology with four inventive features.

Across the independent claims, the inventive subject matter is a switching network and an ablation-procedure signal-processing system that reconfigures how catheter electrodes and a patch electrode connect to a recorder system and to selected mapping, ablation, and stimulation devices, with RF prefilter routing controlled by filtering control states that couple or decouple the RF prefilter between the primary ablation node and the recorder connection.

Stated Advantages

Documented Applications