Flexible RF ablation needle

A system for the delivery of energy to a region of lung tissue, the system comprising:

• an energy delivery device comprising:
• a catheter configured to be inserted into an airway, the catheter comprising a first electrode and a second electrode;
• a handle attached at a proximal end of the catheter, the handle comprising a first activation toggle configured to extend the second electrode from a channel enclosed by the first electrode and the catheter,
• wherein the second electrode is received in a movable manner within the channel of the first electrode,
• wherein the second electrode is extendable from a distal end of the first electrode to form a first extended configuration,
• wherein the second electrode is in a first configuration when within the first electrode,
• wherein when a distal end of the second electrode extends distally from the first electrode, a portion of the second electrode that is extended from the first electrode transitions to a second configuration;
• and
• a power source connected to the first electrode and the second electrode via first and second electrical leads, the power source configured to deliver RF energy;
• and
• a conduit insertable into an airway and selected from the group consisting of a bronchoscope and a guide sheath, the catheter being insertable and movable therein,
• wherein when in the first configuration the second electrode conforms to the first electrode,
• wherein the second configuration is at least one of a helical or a coiled configuration,
• wherein the first configuration is not one of a helical or a coiled configuration.

A device for the delivery of energy to a region of lung tissue, the device comprising:

• a guide sheath;
• a catheter configured to be inserted into the guide sheath, the catheter comprises a distal section, the distal section comprises a first electrode, wherein the first electrode and the catheter are hollow having a channel enclosed by the first electrode and the catheter, wherein a distal end of the distal section comprises a piercing tip configured to pierce through an airway wall;
• and
• a second electrode received in a movable manner within the channel of the first electrode, wherein the second electrode is extendable independent from the first electrode,
• wherein the second electrode extends proximally from the piercing tip to form a coil,
• wherein the device comprises:
• a pre-tissue piercing configuration, wherein the second electrode is positioned within the channel of the first electrode and the first electrode is positioned within the guide sheath, wherein a configuration of the second electrode conforms to the catheter;
• a tissue piercing configuration, wherein the second electrode is positioned within the first electrode and the first electrode is extended beyond a distal end of the guide sheath;
• and
• an energy delivery configuration, wherein the first electrode is extended beyond the distal end of the guide sheath and the second electrode is extended beyond the piercing tip,
• wherein a portion of the second electrode that is extended from the piercing tip changes from the configuration of the catheter to a second configuration, wherein the second configuration comprises a helical configuration,
• wherein the catheter is not in a helical configuration when in the pre-tissue piercing configuration and in the tissue piercing configuration.