Phrenic nerve stimulation
AssigneeCircle Safe
InventorsFrédéric Franceschi, Bertrand Thiery
Life of this patent
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Abstract
The disclosure notably relates to a system for phrenic nerve stimulation. The stimulation system comprises a catheter including one or more intravascular electrodes each arranged on a distal portion of the catheter. The catheter is configured to be introduced in the superior vena cava of a human patient. The stimulation system also comprises an extracorporeal electrode patch configured to be affixed to the patient opposite to the distal portion relative to the phrenic nerve. The extracorporeal electrode patch is operable in a bipolar mode with the one or more intravascular electrodes. Such a system forms an improved solution for phrenic nerve stimulation, in particular during a cryoablation procedure.
Claims9
A method comprising performing phrenic nerve stimulation, the phrenic nerve stimulation including:
- providing a catheter including one or more intravascular electrodes each arranged on a distal portion of the catheter;
- providing an extracorporeal electrode patch having a conductive surface, the conductive surface being operable in a bipolar mode with the one or more intravascular electrodes;
- introducing the stimulation catheter in the superior vena cava of a human patient;
- positioning the distal portion of the catheter at a location in the superior vena cava, in the right brachiocephalic vein, and/or in the right subclavian vein;
- affixing the extracorporeal electrode patch to a human patient opposite to the distal portion relative to a phrenic nerve of the human patient, such that the conductive surface of the extracorporeal patch is located at least partly on a right half of a back of the patient and/or at least partly on a right side of an upper body of the patient, across the phrenic nerve from the location of the distal portion;
- operating the extracorporeal electrode patch in a bipolar mode with the one or more intravascular electrodes to perform phrenic nerve stimulation.
Dependencies are inferred from the claim text.