GOSHGARIAN, Justin,MAUCH, Kevin,RIVERA, Leonila,SHIN, Sukyoung,TRAN, Don H.,CHANG, William W.
申请号：
ES13715790
公开号：
ES2614272T3
申请日:
2013.03.11
申请国别(地区):
ES
年份:
2017
代理人:
摘要：
A renal neuromodulation system (10) for the treatment of a human patient, the system comprising: a procedural guide wire an elongated cylindrical body (16) having a proximal end (18) and a distal end (20), where the end distal (20) of the elongated cylindrical body (16) is configured for intravascular delivery on the procedural guidewire (66) to a patient's renal artery a preformed tubular spiral structure (50) disposed at or near the distal end (20) of the elongated cylindrical body (16), where the spiral structure (50) is configured to transform between an unexpanded configuration and an expanded configuration that tends to assume the shape of the preformed spiral structure (50) and where the spiral structure ( 50) is composed, at least in part, of multifilar braided nitinol wire； and a plurality of electrodes (24) associated with the spiral structure (50), where the elongated cylindrical body (16) and the spiral structure (50) together define a light for guide wire therethrough and where the light for wire The guide is configured to slidably receive the procedural guide wire (66) to locate the spiral structure (50) at a target treatment site within a patient's renal blood vessel and to restrict the spiral structure (50) in the non-expanded configuration, and where the procedural guide wire is configured so that the proximal movement of the procedural guide wire (66) through the light for guide wire with respect to the spiral structure (50) so that a distal end portion of the guide wire (66) is at least partially within the light for guide wire transforms the spiral structure (50) into the expanded configuration, and where the procedural guide wire (66) comprises and a distal part that has variable flexibility along it and where at least one region of the distal part of the guide wire (66) is also configured to remain within the part of the light for guide wire defined by the structure in spiral (50) when the spiral structure (50) is in the expanded configuration.
