Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: Described here are devices, systems, and methods for treating tissue. In some variations, a method of treating a target tissue may comprise advancing a tissue treatment system and a visualization device to the target tissue of a patient. The tissue treatment system may comprise a tissue treatment device comprising an elongate body, an expandable member including an electrode array, and a sheath. In a delivery configuration, the expandable member may be disposed in the sheath circumferentially about the visualization device in an unexpanded configuration. The expandable member may be advanced distal to the sheath. The expandable member may be transitioned into an expanded configuration. The target tissue may be treated using the tissue treatment device. The expandable member may be retracted to reposition the system to the delivery configuration.

Abstract: Described here are devices, systems, and methods for treating tissue. In some variations, a method of treating a target tissue may comprise advancing a tissue treatment system and a visualization device to the target tissue of a patient. The tissue treatment system may comprise a tissue treatment device comprising an elongate body, an expandable member including an electrode array, and a sheath. In a delivery configuration, the expandable member may be disposed in the sheath circumferentially about the visualization device in an unexpanded configuration. The expandable member may be advanced distal to the sheath. The expandable member may be transitioned into an expanded configuration. The target tissue may be treated using the tissue treatment device. The expandable member may be retracted to reposition the system to the delivery configuration.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a method of treating may comprise advancing a pulsed electric field device into a body cavity of a patient. The pulsed electric field device may comprise an elongate body and an expandable member coupled to the elongate body. The expandable member may comprise an electrode array. A pulsed waveform may be delivered to the electrode array to generate a pulsed or modulated electric field thereby treating tissue.

Abstract: Described here are devices, systems, and methods for applying pulsed or modulated electric fields to tissue. In some variations, a device may comprise a first elongate body comprising a lumen, a second elongate body at least partially positioned within the lumen, and an expandable member rolled about the second elongate body. The expandable member may comprise an inner end coupled to the second elongate body, an outer end coupled to the first elongate body, and an electrode array.