Expandable vaginal electrode

A vaginal electrode, including:

• a nonconductive sheet of material formed into a diametrically compressible spiral constructed to unwind, with a first surface contacting a vaginal wall after insertion into the vagina;
• conductive leads woven into the sheet having contact portions exposed on the first surface of the sheet;
• conductive electrode elements extending along the first surface of the sheet and in electrical contact with the contact portions so as to contact the vaginal wall after insertion;
• and
• nonconductive strips extending along the first surface of the sheet between the electrode elements.

A vaginal electrode, including:

• a nonconductive sheet of material wound to form a diametrically compressible spiral having several layers and constructed to unwind, with a first surface contacting a vaginal wall after insertion into the vagina;
• a plurality of electrically isolated conductive electrode elements positioned on the first surface of the nonconductive sheet to contact the vaginal wall after insertion;
• and
• leads for coupling electrical signals to the electrode elements.