Electrode configurations for endovascular therapy device

A method of using a medical device system, the method comprising:

• introducing a medical device into vasculature of a patient, the medical device comprising:
• an elongated body configured to be introduced in a blood vessel of a patient;
• an expandable structure at a distal portion of the elongated body, the expandable structure comprising:
• an expandable body portion including a plurality interconnected struts, and
• a plurality of electrode attachment elements, each electrode attachment element of the plurality of electrode attachment elements including a first projection and a second projection branching off of at least one strut of the plurality of interconnected struts;
• and
• one or more electrodes coupled to the expandable structure via the plurality of electrode attachment elements,
• wherein each electrode of the one or more electrodes is configured to receive the first projection and the second projection of a respective electrode attachment element of the plurality of electrode attachment elements to couple the respective electrode to the expandable structure;
• and
• advancing the medical device until the one or more electrodes are at or near a target location in the vasculature of the patient.

An electrode comprising:

• an electrode body defining:
• a first fixation hole configured to receive a first projection of an expandable structure;
• a second fixation hole separate from the first fixation hole and configured to receive a second projection of the expandable structure;
• and
• at least one conductor hole configured to receive a conductor wire;
• wherein the electrode body includes a first electrode surface, the first electrode surface being electrically conductive,
• wherein the electrode body includes a second electrode surface opposite the first electrode surface with an electrically insulative material applied to the second electrode surface, and
• wherein the electrode body defines a non-cylindrical shape.