System and method for predictable deployment of a medical device

A method of delivering energy to a patient's anatomy, the method comprising:

• piercing a hollow needle into a tissue in the patient's anatomy, the hollow needle being a first electrode, the hollow needle defining a needle lumen therein having an opening at a distal end;
• extending a second electrode from the distal end of the hollow needle a first time;
• activating the first electrode and a second electrode to deliver a first energy to the tissue through the first electrode and the second electrode;
• retracting the second electrode into the needle lumen;
• rotating the hollow needle by a predetermined number of degrees about a central axis of the distal end of the hollow needle, thus causing the second electrode within the needle lumen to also rotate by substantially the same predetermined number of degrees about the central axis;
• extending the second electrode from the distal end of the hollow needle a second time;
• and
• activating the first and second electrodes to deliver a second energy to the tissue through the first and second electrodes.

A method of delivering energy to a tissue, the method comprising:

• piercing a hollow needle into the tissue in a patient's anatomy, the hollow needle being a first electrode, the hollow needle defining a lumen including a non-circular cross-section shape and an opening at a distal end of the hollow needle;
• extending a second electrode from the lumen out of the distal end of the hollow needle a first time;
• maintaining, during the extending, a relative rotational position between a non-circular cross-sectional shape of the second electrode and the non-circular cross-sectional shape of the lumen;
• activating the first electrode and a second electrode to deliver a first energy to a first region of tissue through the first electrode and the second electrode.

A method of treating a tissue, the method comprising:

• delivering a hollow needle to a position adjacent the tissue, the hollow needle including a first electrode and a second electrode, the second electrode positioned within a lumen formed in the hollow needle;
• extending the second electrode out of the hollow needle via the lumen into a first position with a first rotational orientation relative to a longitudinal axis running through the hollow needle;
• retracting the second electrode back into the lumen;
• rotating the hollow needle around the longitudinal axis;
• and
• extending the second electrode out of the hollow needle via the lumen into a second position with a second rotational orientation relative to the longitudinal axis.