| 摘要 |
A catheter comprises a flexible shaft having a length for accessing the renal artery and a multiplicity of electrode sets each supported a support member. Each electrode set extends beyond the catheter's distal end and includes several elongated resilient members comprising a pre-formed curve and supporting an electrode. The resilient members are constrained to a low profile when encompassed by a wall of a removable sheath or a lumen wall of the catheter's shaft, and expand outwardly to assume a shape of their pre-formed curve when removed from the removable sheath or shaft lumen. The resilient members have a stiffness sufficient to maintain contact between the electrodes and an inner wall of the renal artery including irregularities of the inner wall of the renal artery. One or more temperature sensors can be situated at or proximate the plurality of electrode sets.
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