Catheter and electrode systems for electrical neuromodulation

A catheter for use in electrical neuromodulation, the catheter comprising:

• an elongate body having a proximal end and a distal end;
• a first opening in the elongate body;
• a second opening in the elongate body, the second opening between the proximal end of the elongate body and the distal end of the elongate body and on a first side of the elongate body;
• a deflection lumen extending between the first opening and the second opening;
• an elongate deflection member having a first end and a second end, the elongate deflection member configured to extend out of the second opening upon application of pressure to the first end of the elongate deflection member;
• and
• a plurality of electrodes on a second side of the elongate body, the second side opposite the first side, wherein extension of the elongate deflection member out of the second opening is laterally away from the plurality of electrodes and is configured to bring the plurality of electrodes into contact with a luminal surface.

A catheter for use in electrical neuromodulation, the catheter comprising:

• an elongate body having a proximal end and a distal end;
• a first opening in the elongate body;
• a second opening in the elongate body, the second opening between the proximal end of the elongate body and the distal end of the elongate body;
• a deflection lumen extending between the first opening and the second opening;
• an elongate deflection member having a first end and a second end, the elongate deflection member configured to extend out of the second opening;
• and
• a plurality of electrodes, wherein extension of the elongate deflection member out of the second opening is laterally away from the plurality of electrodes and is configured to bring the plurality of electrodes into contact with a luminal surface.