Abstract: A catheter device for ablating biological material is described. The catheter device comprises (a) a longitudinal structure; (b) an applicator for ablating the biological material, wherein the applicator is installed at the longitudinal structure; (c) a first electrode being attached to the longitudinal structure; (d) a second electrode being attached to the longitudinal structure; (e) an interface being connected directly or indirectly to the longitudinal structure; (f) a first lead electrically connecting the first electrode with the interface; and (g) a second lead electrically connecting the second electrode with the interface. The interface is configured for electrically connecting the first lead and the second lead with a measurement device for electrically stimulating the first electrode and the second electrode and for detecting an electric quantity being associated with an electric response of an biological material being located in between the two stimulated electrodes.

Abstract: A thermal accelerant is delivered to a tissue site and localized to modulate the shape, extent or other characteristic of RF or microwave-induced hyperthermia tissue ablation. The accelerant may be provided via an image-guided hand piece or via a lumen added to a microwave antenna, and promotes faster heating, more complete ablation and/or a more extensive treatment region to reduce recurrence of treated cancers, overcoming natural limitations, variations in tissue response and drop-off or thermal loss away from the antenna. The accelerant is delivered as a viscous but heat sensitive fluid, and is fixed in place to provide regions of preferential absorption or heating. Shorter exposure times to heat the far field may allow survival of vulnerable tissue such as vessels, and multiple antennae may be used for effective treatment of irregular or large tumors.

Abstract: A multifunctional medical device, apparatus or system that is capable of perforating a surgical procedure or operation and also capable of attracting, collecting, removing or reducing debris generated by the surgical procedure or operation, on a subject The apparatus comprising a plurality of electrodes, two of which are configured to be in electrical communication with or being electrically connectable to opposite poles of a source of high voltage dc electricity to ionize, attract, collect, and remove or reduce debris. At least one of the electrodes is also configured to be part of a RF circuit to perform a surgical procedure or operation such as tissue cutting, cauterization tissue sealing or coagulating at a surgical site on the subject.

Abstract: The inventive method of manufacturing a cryoprobe uses an assembly pin (25) for receiving a sleeve (20) that is to form a part of the head (13) of the cryoprobe and comprises three abutment surfaces (27, 29, 30) that are axially offset relative to each other, said abutment surfaces ensuring, following the attachment of the sleeve (20) and the nozzle (24) to the tube end (19), the correct axial positioning of the nozzle (24) and the sleeve (20), in particular, relative to the distal end surface (18) of the tube end (19). Consequently, the position of the nozzle (24) in the expansion chamber (23) that formed after the sleeve (20) was closed and thus the function of the cryoprobe are ensured.

Abstract: An electrosurgical medical device includes an elongate shaft defining a proximal end, a distal end, and a lumen there through. A fluid conduit is disposed within the lumen. A first electrode is at least partially disposed within the lumen and extends distally from the distal end of the shaft, the first electrode is sized and configured to cut tissue with radiofrequency energy. A second electrode is arranged in a bipolar configuration with the first electrode, the second electrode is coupled to ground and configured to receive radiofrequency energy from the first electrode. The second electrode is defined by at least a portion the shaft and extending a distance away from the distal end of the shaft.

Abstract: A surgical instrument includes a housing, an energizable member, a powered deployment assembly, and a cable assembly. The energizable member is configured to supply electrosurgical energy to tissue, and is movable between a storage position and a deployed position. The powered deployment assembly is configured to selectively move the energizable member between the storage position and the deployed position. The cable assembly having a cable coupled to the housing at a first end and having a plug coupled to the cable at a second, opposite end. The cable housing one or more first wires for selectively providing electrosurgical energy to the energizable member and one or more second wires for selectively providing power to the powered deployment assembly. The plug is configured to house a battery therein for powering the powered deployment assembly via the one or more second wires.

Abstract: A multifunctional medical device, apparatus or system that is capable of perforating a surgical procedure or operation and also capable of attracting, collecting, removing or reducing debris generated by the surgical procedure or operation, on a subject The apparatus comprising a plurality of electrodes, two of which are configured to be in electrical communication with or being electrically connectable to opposite poles of a source of high voltage dc electricity to ionize, attract, collect, and remove or reduce debris. At least one of the electrodes is also configured to be part of a RF circuit to perform a surgical procedure or operation such as tissue cutting, cauterization tissue sealing or coagulating at a surgical site on the subject.

Abstract: An open-irrigated ablation catheter system includes a catheter body, and an electrode tip body mounted on a distal portion of the catheter body. The electrode tip body includes a proximal end configured for connection to the catheter body and a wall defining an open interior region and including one or more irrigation ports. The wall is conductive for delivering radio frequency (RF) energy. The catheter system further includes a proximal insert positioned partially within the catheter body and at least partially within the proximal end of the electrode tip body. The proximal insert includes a fluid inlet for receiving a cooling fluid delivered via the catheter body. The proximal insert forms a flow path configured to direct the cooling fluid from the fluid inlet to cool the distal portion of the catheter body and to cool a junction of the catheter body and the electrode tip body.

Abstract: Disclosed is a multifunctional medical device, apparatus or system that is capable of performing a surgical procedure or operation and also capable of removing or reducing smoke particles generated by the surgical procedure or operation on a subject, the apparatus comprising a plurality of electrodes, two of which are configured to be in electrical communication with or being electrically connectable to opposite poles of a source of high voltage dc electricity to ionize, and remove or reduce smoke particles, and at least one of which is also configured to be part of a RF circuit to perform a surgical procedure or operation such as tissue cutting, cauterization, tissue sealing or coagulating at a surgical site on the subject. Also disclosed is a method of employing the above disclosed device, apparatus or system or variations thereof to perform a surgical procedure or operation at a surgical site and to remove or reduce smoke particles generated during the surgical procedure or operation.

Abstract: A medical device includes a hand piece, a heating power supply, and a therapy power supply. The hand piece includes a first electrode including a heater. The heating power supply selectively provides heating power to the heater. The therapy power supply selectively provides therapeutic power to the first electrode. The medical device is changeable between operating a first electrosurgical configuration and a second electrosurgical configuration. In the first electrosurgical configuration, the heating power supply provides the heating power to the heater to heat the first electrode and the therapy power supply provides the therapeutic power to the first electrode. A single conductor line carries the heating power to the heater and the therapeutic power to the first electrode.

Abstract: A jaw member for use with a surgical instrument includes a support base, a jaw liner, and an elongated plate. The support base defines a cavity therein configured for receipt of the jaw liner. The elongated plate is configured to be seated in the cavity of the support base adjacent the jaw liner to secure the jaw liner relative to the support base.

Abstract: A multi-functional electrosurgical plasma accessory having a handpiece and an extendable probe assembly. The extendable probe assembly has a shaft member, a tube, an electrode, a spacer and a collet. The shaft member and tube each may be formed of a plurality of structures assembled together, each may be of a single unitary design, or both together may be of a single unitary design. The shaft member has an interior channel, a distal end and a proximal end comprised of a neck portion at the distal end of the shaft member, a grip. The elongated portion of the shaft is movable within the spacer between a first position in which a portion of a distal end of the electrode extends out of the tube and a second portion in which the distal end of the electrode does not extend out of the tube.

Abstract: Electrosurgical lysing devices and related systems and methods. In some embodiments, the lysing device may comprise a lysing tip comprising a plurality of beads. One or more of the plurality of beads may be electrically non-conductive, at least along their respective surfaces. The lysing tip may further comprise at least one lysing member defining at least one lysing segment extending between each pair of adjacent beads. At least a subset of the plurality of beads may protrude both distally and proximally relative to the at least one lysing member.

Abstract: A device for treating ligamentum flavum by radio frequency includes a hand grip and a cannula fixed at its proximal end to the hand grip extending longitudinally from the hand grip to an opposed distal end of the cannula configured to reach the ligamentum flavum. At least one electrode is electrically connectable to a radio frequency generator. The device also includes an actuating device of the electrode provided in the hand grip for moving the electrode. The actuating device includes a slider along a sliding guide having a first and a second sliding portion placed in succession. The first portion is shaped to allow an axial translation of the slider along the guide to generate a translation of the electrode in the cannula. The second portion is configured to allow rotational translation of the slider along the guide to generate a corresponding rotational translation of the electrode outside the cannula.

Abstract: A Radio Frequency (RF) ablation system includes a signal generator, control circuitry, a plurality of non-linear amplifiers, and a processor. The signal generator is configured to generate an RF signal having a given frequency. The control circuitry is configured to set phases and amplitudes of a plurality of replicas of the RF signal generated by the signal generator. The plurality of non-linear amplifiers is configured to amplify the plurality of replicas of the RF signal, and to drive a respective plurality of ablation electrodes in a patient body with the amplified replicas. The processor is configured to receive a return signal, including a superposition of the replicas sensed by a patch electrode attached to the patient body, and to adaptively adjust the phases and amplitudes of the replicas in response to the return signal, by controlling the control circuitry.

Abstract: A tissue removal system for extracting a tissue specimen from a patient and a related method are disclosed. The system has a flexible container with an opening associated with a proximal end, and a distal end. The system also has a plurality of wires removably coupled to an interior of the flexible container in a pre-collection configuration wherein the plurality of wires form a receiving space for receiving the tissue specimen and wherein the plurality of wires are positioned in a pattern. The pattern is selected to divide the tissue specimen into at least four pieces in response to at least one pulling force on the plurality of wires.

Abstract: A high-frequency electrosurgical treatment instrument for operations, includes a pair of forceps pieces, an insulating member, a transmission member, a manipulation rod member, a distal end cover member, a shaft member and a manipulation portion. The instrument, includes a flow channel portion formed between the manipulation rod member and the shaft member, the flow channel portion being disposed along a longitudinal direction of the manipulation rod member to allow liquid to flow; a groove portion that communicates with the flow channel portion to allow the liquid to flow from the flow channel portion; and an opening portion that communicates with the groove portion to supply the liquid near the proximal end portions of the pair of forceps pieces.

Abstract: Lysing surgical instruments and related systems and methods. In some embodiments, the instrument may comprise a lysing tip comprising a plurality of beads and at least one lysing member defining at least one lysing segment extending between each pair of adjacent beads or between a tip of the instrument and an adjacent bead. Some embodiments may comprise rearward-facing lysing segments to facilitate retrograde lysing movement through patient tissue.

Abstract: An electrosurgical device comprising: (a) forceps including: (i) a first working arm and (ii) a second working arm; (b) a blade electrode; wherein the electrosurgical device is capable of being switched between a first electrical configuration so that the electrosurgical device delivers a first therapy current through the first working arm, the second working arm, or both, and a second electrical configuration so that the electrosurgical device delivers a second therapy current through the blade electrode; and wherein the first working arm and the second working arm of the forceps are immobilized in the second electrical configuration so that both the forceps and the first therapy current are disabled.

Abstract: A heat exchanger, and method of manufacture of a heat exchanger configured to be placed into contact with an object to regulate the temperature of the object. The heat exchanger comprises a layer of material defining a passage through which a heat transfer fluid may flow. The material layer has a first side for contact with the object; and a second side which, in use, will face away from the object. The first side has a relatively high coefficient of thermal conduction. The second side has a relatively low coefficient of thermal conduction compared to the first side.