Device for treating endometriosis

1 . An electrotherapeutic device for at least partial insertion into a patient, the device comprising:

a shaft including a proximal end portion and a distal end portion, the shaft defining a fluid-impervious gas-delivery lumen extending between the proximal end portion of the shaft, located at a handle connection, and the distal end portion of the shaft, the fluid-impervious gas-delivery lumen configured to deliver gas into the patient at the distal end portion of the shaft;

a plasma activation electrode configured to be actuatable for generating plasma from the gas, the plasma activation electrode extending through the fluid-impervious gas-delivery lumen and extendable distally outward from the shaft via a distal opening at the distal end portion of the fluid-impervious gas-delivery lumen;

an electromagnetic ablation electrode configured to be actuatable for generating electromagnetic ablation energy, the electromagnetic ablation electrode mounted in a fixed location on an external surface of the distal end portion of the shaft and offset from the plasma activation electrode; and

a shield, both lateral to and outside of both of the shaft and the fluid-impervious gas-delivery lumen, the shield configured to be translated longitudinally and independently from the electromagnetic ablation electrode to selectively physically shield a distal tip of the electromagnetic ablation electrode from plasma generated by the plasma activation electrode when the plasma generation electrode is extended distally outward from the shaft.

2 . The device of claim 1 , wherein the electromagnetic ablation electrode is configured to be actuatable for generating electromagnetic ablation energy in an absence of gas delivery.

3 . The device of claim 1 , further comprising a gas source fluidly connected to the shaft to permit gas from the gas source to travel toward the plasma activation electrode via the fluid-impervious gas-delivery lumen.

4 . The device of claim 1 , wherein the plasma activation electrode is separate from the electromagnetic ablation electrode.

5 . The device of claim 1 , wherein the plasma activation electrode is configured to provide plasma to treat a patient more globally than the electromagnetic ablation energy provided by the electromagnetic ablation electrode.

6 . The device of claim 1 , wherein the electromagnetic ablation electrode is actuatable over a local treatment site.

7 . The device of claim 1 , wherein the shaft comprises a width at the proximal portion, the width in a range of 1 mm to 5 mm, inclusive.

8 . The electrotherapeutic device of claim 1 , wherein the shaft is sized and shaped for insertion to a uterus through a cervix.

9 . The electrotherapeutic device of claim 1 , further comprising a handle connected to the proximal end portion of the shaft, the handle comprising a first trigger for receiving user input for actuating the plasma activation electrode and a second trigger for receiving user-input for actuating the electromagnetic ablation electrode.

10 . The electrotherapeutic device of claim 1 , wherein the device is configured to be switched between a first mode where the plasma activation electrode is actuatable, and a second mode where the electromagnetic ablation electrode is actuatable.

11 . An electrotherapeutic device for at least partial insertion into a patient, the device comprising:

a shaft including a proximal end portion and a distal end portion, the shaft defining a fluid-impervious gas-delivery lumen extending between the proximal end portion of the shaft, located at a handle connection, and the distal end portion of the shaft;

one or more plasma activation electrodes located near the distal end portion of the shaft, the one or more plasma activation electrodes configured to be actuatable for establishing a plasma from gas delivered to the distal end portion of the shaft via the fluid-impervious gas-delivery lumen

an electromagnetic ablation electrode configured to be actuatable for generating electromagnetic ablation energy, the electromagnetic ablation electrode mounted in a fixed location on an external surface of the distal end portion of the shaft and offset from the plasma activation electrode;

a shield, both lateral to and outside of both of the shaft and the fluid-impervious gas-delivery lumen, the shield configured to be translated longitudinally and independently from the electromagnetic ablation electrode to selectively physically shield a distal tip of the electromagenetic ablation electrode from plasma generated by the plasma activation electrode when the plasma generation electrode is extended distally outward from the shaft; and

a handle connected to the proximal end portion of the shaft, the handle comprising a first trigger for actuating the one or more plasma activation electrodes and a second trigger for actuating the one or more electromagnetic ablation electrodes.

12 . The device of claim 11 , wherein the electromagnetic ablation electrode is configured to generate AC electromagnetic ablation energy and the one or more plasma activation electrodes are configured to generate plasma from the gas.

13 . The device of claim 12 , wherein the at least two plasma activation electrodes are configured to each produce plasma.

14 . The device of claim 11 , wherein the one or more plasma activation electrodes comprise at least two plasma activation electrodes configured to produce plasma therebetween.

15 . The device of claim 11 , wherein the one or more plasma activation electrodes comprise a plasma activation electrode at least partially surrounded in a housing having a plurality of pores for passage of at least one of gas or plasma therethrough.

16 . The device of claim 11 , wherein the one or more plasma activation electrodes comprise a first plurality of plasma activation electrodes arranged in a first plane.

17 . The device of claim 16 , further comprising a second plurality of plasma activation electrodes arranged in a second plane parallel to the first plane.