Roger Hastings,Scott Smith,Leonard B. Richardson,Mark L. Jenson
申请号：
US13292766
公开号：
US09060761B2
申请日:
2011.11.09
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A flexible catheter includes a magnetically permeable element provided at its distal end. The magnetically permeable element is configured for placement within the renal artery. External coils, positionable on anterior and posterior portions of a patient in proximity to the renal artery, are coupled to a generator which energizes the external coils to create a high-frequency oscillating magnetic field in body tissue between the external coils including the renal artery and perivascular renal nerve tissue. The magnetically permeable element serves to concentrate the magnetic field in a region near the renal artery. The concentrated magnetic field induces high frequency electric current sufficient to ablate the perivascular renal nerve tissue proximate the renal artery. A cooling arrangement can be provided at the catheters distal end and configured to provide cooling to the renal artery during ablation of the perivascular renal nerve tissue.
