An apparatus includes a catheter shaft assembly and an end effector. The catheter shaft assembly includes an outer sheath with a distal end. The end effector is associated with a distal end of the catheter shaft assembly. The end effector includes a plurality of leaflets. The leaflets are configured to transition between a first configuration and a second configuration. The leaflets are configured to fit within the outer sheath in the first configuration. The leaflets are configured to expand outwardly away from the longitudinal axis in the second configuration in response to being exposed distally relative to the distal end of the outer sheath. Each leaflet includes a flexible body and a plurality of electrodes. Each flexible body defines a plurality of openings. The electrodes are positioned on the flexible body.

A current generator for a medical treatment system is disclosed herein. In one example, the medical treatment system can include a cable and a current generator. The cable can include a distal portion that couples to a medical device and a proximal portion. The proximal portion of the cable can include a first and second conductor, with each conductor having an exposed contact region. The current generator can releasably couple to the cable to deliver an electrical signal. The current generator can include an inner chamber that can receive at least a portion of the cable. The current generator can also include first and second electrical connectors, which can electrically connect to the conductors. The current generator can also include a cable guide that can assist with position the cable within the inner chamber and a cable lock that can lock a part of the cable in position.

An electrosurgical device including the disclosure describes an electrosurgical device including an elongated body having a tubular section extending from a proximal end to a distal end and defining an evacuation channel configured to evacuate tissue from the distal end to the proximal end, a curette at the distal end of the tubular section, wherein the curette defines a perimeter cutting edge that forms a distal opening to the evacuation channel, a plasma cutting electrode defined by the perimeter cutting edge of the curette, where the plasma cutting electrode is configured to operate in a monopolar configuration to deliver radio frequency (RF) plasma energy to adjacent tissue to cut a volume of the target tissue, and a dielectric coating on at least a portion of the curette, the dielectric coating electrically insulating the curette from target tissue and the volume of cut target tissue, wherein the dielectric coating comprises a ceramic material.

A kit for extracting a tissue specimen includes a specimen container having a proximal rim and a specimen bag operably supported about the proximal rim and depending therefrom. The specimen bag includes a plurality of ribs depending from the proximal rim having a series of mechanical interfaces associated therewith and extending therealong. The kit also includes a cutting guard having a body with proximal and distal ends. The distal end is configured for insertion within the specimen bag when disposed within an incision and the proximal end defines an opening therein configured to facilitate introduction of one or more surgical instruments therethrough. The cutting guard includes one or mechanical interfaces operably associated with the body of the cutting guard configured to selectively engage one of the series of mechanical interfaces of one of the plurality of ribs of the specimen container upon insertion of the cutting guard within the incision.

A tissue resecting device includes an outer sleeve having an axial bore extending along a longitudinal axis from a proximal end to a distal end and opening to an outer window near the distal end. An inner sleeve is rotatably received in the axial bore of the outer sleeve and has an axial channel adapted for communication with a negative pressure source. A distal housing is attached to a distal end of the inner sleeve and has an annular dielectric portion and a circumferentially adjacent annular metal portion having an inner window with circumferentially spaced-apart sharp cutting edges that opens to the axial channel. An active electrode is carried by the annular dielectric portion, and the inner window is circumferentially spaced-part from the active electrode so that the inner window and the active electrode rotate alternately into alignment with the outer window as the inner sleeve is rotated within the outer sleeve.

An end effector of an electrosurgical device may include a first body, a first electrode on the left side of the first body, and a second electrode on the right side of the first body. The first and second electrodes may be configured to receive electrosurgical energy to treat tissue in a target treatment zone. The end effector may also include a fluid aspiration port in fluid communication with a fluid path. The fluid aspiration port may be configured to remove a material from the target treatment zone.

An apparatus includes an elongated medical dilator including a cautery device configured to selectively form, by cauterization, a tissue passage through a tissue portion of a living body. The elongated medical dilator also includes a dilation device configured to dilate the tissue passage once the cautery device selectively formed the tissue passage.

Various embodiments disclosed relate to a non-stick layer for insulative elements on electrosurgical cutting tools. The present disclosure includes systems, devices, and methods of making and using a non-stick layer on insulative element. The non-stick layer can include coatings, surface structures, or combinations thereof.

An endoscopic medical system can include an endoscopic end effector including three or more jaws. Each of the three or more jaws can respectively include a corresponding electromagnetic energy signal conductor. The end effector can also include two or more jaw linkages, an individual jaw linkage corresponding to a respective one of the jaws, such that at least two of the jaws are configured to move, independent of one another.

The present disclosure relates to devices and methods for cosmetic treatment of a skin of a subject with RF energy. Examples of the present disclosure include movable electrodes and/or movable skin temperatures sensors.