SYSTEMS AND METHODS FOR TREATING HEADACHE DISORDERS

1 . A method for treating a headache disorder of a patient, the method comprising:

delivering treatment energy to one or more tissues at one or more target sites within a sino-nasal cavity of the patent to thereby cause multipoint interruption and/or multipoint modulation of one or more targeted neural tissues for the treatment of a headache disorder.

2 . The method of claim 1 , wherein the targeted neural tissue is associated with at least one of anterior ethmoidal nerve (AEN) tissue, posterior nasal nerve (PNN) tissue, and sphenopalatine ganglion (SPG) nerve cells.

3 . The method of claim 2 , wherein delivery of treatment energy creates targeted micro-lesions in targeted neural tissue to thereby interrupt associated neural signals.

4 . The method of claim 3 , wherein the targeted micro-lesions cause multiple points of interruption of postganglionic parasympathetic fibers and trigeminal afferent branches to thereby reduce the frequency and intensity of headache disorder-related symptoms.

5 . The method of claim 3 , wherein the targeted micro-lesions cause multiple points of interruption of nociceptive C fibers to thereby reduce the frequency and intensity of headache disorder-related symptoms.

6 . The method of claim 3 , wherein the targeted micro-lesions cause multiple points of interruption of accessible trigeminal branches associated with PNN tissue to thereby reduce the frequency and intensity of headache disorder-related symptoms.

7 . The method of claim 3 , wherein the targeted micro-lesions cause multiple points of interruption of AEN tissue to thereby reduce the frequency and intensity of headache disorder-related symptoms.

8 . The method of claim 7 , wherein the treatment energy is delivered at a level sufficient to create the targeted micro-lesions in the AEN tissue without damaging olfactory nerves to thereby preserve olfactory function.

9 . The method of claim 2 , wherein delivery of treatment energy results in modulation of nociceptive C fibers to thereby reduce the frequency and intensity of headache disorder-related symptoms.

10 . The method of claim 1 , wherein the headache disorder is selected from the group consisting of migraine, tension-type headache (TTH), cluster headache (CH) or trigeminal neuralgia, and medication-overuse headache (MOH).

11 . The method of claim 1 , wherein the multipoint interruption is accomplished by ablating neural tissue.

12 . The method of claim 11 , wherein the ablation is thermal ablation.

13 . The method of claim 12 , wherein the thermal ablation is cyro-ablation.

14 . The method of claim 11 , wherein the ablation is caused by delivery of radio-frequency (RF) energy.

15 . The method of claim 1 , wherein the treatment energy is delivered by a device comprising an end effector comprising at least one retractable and expandable segment.

16 . The method of claim 15 , wherein the end effector comprises a plurality of energy delivery elements provided on the at least one segment.

17 . The method of claim 16 , wherein, when in an expanded, deployed state, the at least one segment positions one or more of the plurality of energy delivery elements relative to the one or more target sites.

18 . The method of claim 15 , wherein the at least one retractable and expandable segment comprises a plurality of deformable wires and the plurality of energy delivery elements are operably associated with the plurality of deformable wires.

19 . The method of claim 18 , wherein the deformable wires comprise shape memory material.

20 . The method of claim 15 , wherein the end effector is a multi-segment end effector comprising at least a first retractable and expandable segment and a separate and distinct second retractable and expandable segment.