Guide-compatible large-electrode catheter for renal nerve ablation with reduced arterial injury

A first catheter is dimensioned for deployment within a renal artery. A second catheter has a shaft with an outer diameter smaller than an inner diameter of the first catheter's open lumen. A gap is formed between the shaft and the first catheter when the second catheter is situated within the...

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Bibliographic Details
Main Authors JENSON MARK L, CROW LOREN M
Format Patent
LanguageEnglish
Published 29.12.2015
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:A first catheter is dimensioned for deployment within a renal artery. A second catheter has a shaft with an outer diameter smaller than an inner diameter of the first catheter's open lumen. A gap is formed between the shaft and the first catheter when the second catheter is situated within the first catheter. The gap facilitates transport of a fluid, such as imaging contrast media, along the first catheter. An electrode arrangement at the distal end of the shaft is configured to deliver ablative energy to perivascular renal nerves, and has an outer diameter about the same size as the inner diameter of the first catheter such that a fit therebetween substantially blocks fluid flow within the gap yet provides for relative movement between the electrode arrangement and the luminal wall. A conductor extends between the proximal and distal ends of the shaft and is coupled to electrode arrangement.
Bibliography:Application Number: US201213353948