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US 2025/0311978 A1Published application
Catheter with plurality of sensing electrodes used as ablation electrode
AssigneeBiosense Webster (Israel) Ltd.
InventorAssaf GOVARI
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Abstract
A system includes a switching assembly and a processor. The switching assembly is connected to multiple electrodes that are disposed on an expandable distal end of a catheter, and is configured to switch the electrodes between a position tracking system, an electrophysiological (EP) sensing module and a generator of an ablative power. The processor is configured to control the switching assembly to switch the electrodes.
Claims20
A system, comprising:
- a switching assembly, which is connected to an electrode disposed on an expandable distal end of a catheter, the electrode comprising a plurality of segments, the switching assembly configured to electrically connect each segment of the plurality of segments of the electrode to one of a positioning system, an electrophysiological (EP) sensing module, and a generator of ablative power;
- and
- a processor configured to control the switching assembly to switch each segment of the plurality of segments of the electrode between the positioning system, the EP sensing module, and the generator of the ablative power,
- the processor being configured such that:
- when connecting segments of the electrode to the position tracking system or to the EP sensing module, individually connect each segment of the plurality of segments of the electrode;
- and
- when connecting segments of the electrode to the generator of ablative power, jointly connect all segments of the plurality of segments of the electrode.
4 more elements
A method comprising:
- using a switching assembly, interchangeably switching each segment of a plurality of segments of an electrode disposed on an expandable distal end of a catheter, between a position tracking system, an electrophysiological (EP) sensing module and a generator of ablative power;
- detecting an impedance of the electrode;
- using a processor, controlling the switching assembly to switch each segment of the plurality of segments of the electrode between the position tracking system, the EP sensing module, and the generator of ablative power, the controlling comprising:
- jointly switching the plurality of segments of the electrode to the generator of ablative power based on the detected impedance being indicative of contact with tissue;
- and
- individually switching one or more segments of plurality of segments of the electrode to the position tracking system or to the EP sensing module based on the detected impedance being indicative of contact with blood.
3 more elements
Dependencies are inferred from the claim text.