An actuator for an interventional surgical procedure is described. The
actuator may include an actuator body having a distal end and a proximal
end. A central expandable section is located between the distal end and
the proximal end. The expandable section is operable between an
unactuated condition in which the expandable section is in a furled state
and an actuated condition in which the expandable section is in an
unfurled state. A needle is located at the expandable section. The needle
is moveable in an approximately perpendicular direction relative to a
central longitudinal axis of the actuator body from a position within the
actuator body to a position outside of the actuator body.