Systems and methods for delivering energy to passageways in a patient

An energy delivery device, comprising:

• a body having a proximal portion, a distal portion, and a lumen extending along the proximal and distal portions;
• a member extending through the lumen;
• an electrode unit at the distal portion of the body attached to the member, and having a plurality of circumferentially spaced electrodes, wherein distal ends of the plurality of circumferentially spaced electrodes converge toward one another;
• and
• a handle, wherein the member is coupled to a distal end of the electrode unit, wherein the member is configured to move reciprocally relative to the body via actuation of the handle, reciprocal movement of the member is configured to transition the electrode unit between a first, radially-collapsed configuration and a second, radially-expanded configuration, the member is biased in a distal direction by a resilient member or spring disposed proximally of the electrode unit to bias the electrode unit in the first, radially-collapsed configuration, and the electrode unit is transitioned from the first, radially-collapsed configuration to the second, radially-expanded configuration by pulling the member in a proximal direction.

An energy delivery device, comprising:

• a body having a cover with an inner wall, a coil coupled to the inner wall of the cover, and a lumen in the coil;
• a member extending through the lumen;
• an energy delivery unit at a distal portion of the body, the energy delivery unit having a proximal retainer fixed to the body, a distal retainer attached to the member, and a plurality of flexible electrodes having proximal ends attached to the proximal retainer and distal ends attached to the distal retainer, wherein the member is coupled to a distal end of the energy delivery unit;
• and
• a handle having a grip, a head coupled to a proximal portion of the body and located at an upper portion of the grip, and an actuator mechanism coupled to the member, wherein the head projects outwardly from the grip such that a portion of the grip is narrower than the head, the member is configured to move reciprocally relative to the body via actuation of the actuator mechanism, reciprocal movement of the member is configured to transition the energy delivery unit between a first, radially-collapsed configuration and a second, radially-expanded configuration, the member is biased in a distal direction by a resilient member or spring disposed proximally of the energy delivery unit to bias the energy delivery unit in the first, radially-collapsed configuration, and the energy delivery unit is transitioned from the first, radially-collapsed configuration to the second, radially-expanded configuration by pulling the member in a proximal direction.