MEDICAL DEVICE FOR DENERVATION OF RENAL PERIVASCULAR NERVES

摘要

The present invention relates to a medical device (1) for denervating the renal perivascular nerves with a catheter (2) which comprises a flexible shaft for insertion into the renal artery of a patient, the shaft having an inner lumen (5) for supplying a refrigerant and a cryoballoon (3) arranged at the distal end of the shaft. At least one bipolar electrode (16) for emitting an electrical pulse to stimulate the perivascular nerves is arranged on the cryoballoon (3). In order to ensure an ablation of the renal perivascular nerves over the entire length, the cryoballoon (3) is designed to touch the wall of the renal artery over a length of more than 2.5 cm in the direction of blood flow and at least over a length of at least Ablate 2.5 cm continuously and simultaneously.