Systems, methods and devices for performing an endoscopic procedure are provided herein, including an endoscopic plug designed to create a sealed environment within a body cavity using an internal expandable portion which maintains a collapsed configuration during an insertion process or removal process, but which can be expanded upon insertion into the body cavity to secure an internal portion of the endoscopic plug within the body cavity while creating a seal to prevent leakage of gas or fluid out of the body cavity during the endoscopic procedure.

The present invention relates to an ablation assembly (100) to treat target regions of a tissue (41) in organs (44) comprising: an ablation catheter (1) comprising an elongate shaft (13) having a longitudinal main direction (X-X), said elongate shaft (13) comprising at least a shaft distal portion (17), said shaft distal portion (17) comprising a shaft distal portion distal end (19);
said ablation catheter (1) comprising an inner lumen (118) arranged within the elongate shaft (13);
said ablation catheter (1) comprising a shaft ablation assembly (20) fixedly disposed at said shaft distal portion (17), the shaft ablation assembly (20) being configured to deliver both thermal energy for ablating said tissue (41) and non-thermal energy for treating said tissue (41); at least a shape setting mandrel (26) disposed within the ablation catheter (1), the shape setting mandrel (26) being insertable within the inner lumen (118) and removable from the inner lumen (118),
wherein the shape setting mandrel (26) is free to move in respect of the inner lumen (118) avoiding any constraint with said shaft distal portion (17) during the shape setting mandrel insertion,
wherein the shape setting mandrel (26) comprises at least a pre-shaped configuration and the shape setting mandrel (26) is reversibly deformable between at least a straight loaded configuration and said pre-shaped configuration,
wherein, when the shape setting mandrel (26) is fully inserted in the shaft distal portion (17), the shape setting mandrel (26) is configured to shape set said shaft distal portion (17) with said pre-shaped configuration.

An electrosurgical apparatus is provided having a shaft, a handle, and at least one porous electrode. The shaft is coupled to the handle and the at least one porous electrode is coupled to a distal tip of the shaft. The at least one porous electrode conducts energy provided to the distal tip and enables fluid provided to the distal tip to pass or flow through the porous structure of the at least one electrode, such that the electrosurgical energy and the fluid are simultaneously applied to patient tissue adjacent to the at least one porous electrode. The shaft is rotatable relative to the handle of the electrosurgical apparatus to change the orientation of the at least one porous electrode relative to the handle. The shaft is extendable or retractable relative to the handle to increase or decrease the distance between the at least one porous electrode and the handle

A method and apparatus are disclosed for an RF guidewire for applying RF energy to create a channel through a region of tissue within a patient's body. The RF guidewire is configured to have a hydrophilic coating disposed thereon to reduce friction to facilitate traversal through vasculature while maintaining its mechanical, electrical and thermal properties. The RF guidewire includes an electrode tip at a distal end of the guidewire for delivering the energy and an electrically insulative thermal shield between the electrode tip and electrical insulation for thermally protecting the electrical insulation from heat produced by delivering the energy. Some embodiments include electrical insulation inside of the electrically insulative thermal shield.

A device is provided for generating RF power for an electrosurgical instrument, wherein the circuit provides the electrosurgical current according to a specified set of predefined parameters. The invention further includes at least one read and write RFID that reads information from a RFID tag. The circuit changes the parameters based on the information.

A treatment device includes a flexible sheath; a wire configured to be inserted into the sheath; a first treatment member disposed at distal side from the wire; a second treatment member disposed at a distal side from the first treatment member; and a protection member configured to cover the second treatment member when the first treatment member projects from a distal end of the sheath.

A medical connecting device, having a proximal end and a distal end; the medical connecting device includes an insulating layer (3, 123, 222, 322) and a spiral tube (2, 124, 223, 323), the insulating layer (3, 123, 222, 322) covering the outermost layer of the whole device; the spiral tube (2, 124, 223, 323) has a conductive hollow tubular structure; and the spiral tube (2, 124, 223, 323) has a spiral structure, and a pitch of the spiral structure gradually changes in the direction from the proximal end to the distal end. The medical connecting device is able to integrate multiple functions such as electricity conducting, liquid passage, powder spraying, negative pressure suction, sealing, insulation, and support.

Ablation systems and methods of the present disclosure control lesion depth and width such that, for example, wide and shallow lesions can be formed in target tissue in an anatomic structure of a patient during a medical procedure. Such wide and shallow lesions can be useful for treating, for example, thin tissue such as atrial tissue in atria of the heart of the patient.

An apparatus for gas-assisted electrosurgery having a gas-assisted electrosurgical probe comprising a tube and an electrode within said tube, wherein a distal end portion of said electrode extends from an opening at a distal end of said tube and an electrically insulating tip connected to a distal end of said electrode. The electrically insulating tip has a substantially hemispherical distal end portion having a radius r.sub.1 and a proximal portion having a circular cross-section and a central axis of a length l.sub.1, wherein l.sub.1>r.sub.1.

Ablation systems and methods of the present disclosure control lesion depth and width such that, for example, wide and shallow lesions can be formed in target tissue in an anatomic structure of a patient during a medical procedure. Such wide and shallow lesions can be useful for treating, for example, thin tissue such as atrial tissue in atria of the heart of the patient.