Methods and apparatuses for remodeling tissue of or adjacent to a body passage

摘要

Medical devices and methods for making and using the same are disclosed. An example medical device may include a catheter shaft. An expandable member may be coupled to the catheter shaft. A plurality of flexible electrode assemblies may be coupled to the expandable member. A control unit may be coupled to the electrode assemblies. The control unit may be configured to energize the electrode assemblies for approximately 10 seconds to less than approximately 1 minute.

主权项

1. A medical device for renal nerve ablation, comprising:
a catheter shaft; an expandable member coupled to the catheter shaft; first and second flexible electrode assemblies coupled to the expandable member, wherein each of the first and second flexible electrode assemblies comprises a proximal electrode pad, a distal electrode pad, an intermediate tail disposed between the proximal electrode pad, and a proximal tail disposed proximal to the proximal electrode pad, and wherein the first flexible electrode assembly is axially offset from the second flexible electrode assembly; a control unit coupled to the first and second flexible electrode assemblies; and wherein the control unit is configured to energize the first and second flexible electrode assemblies for a time ranging from 10 seconds to 1 minute.