The present application provides an electrode catheter system, comprising an interventional catheter for intervening to one side of an artery blood vessel and provided with an electrode element that can release an electrical signal toward an inner wall of a renal artery blood vessel; a pressure sensor for intervening to an artery blood vessel; and a data processing module, connected with the pressure sensor. The electrode element releases an electrical signal toward the inner wall of the renal artery vessel, and then the pressure sensor monitors a blood pressure change in the renal artery vessel at the other side. A data processing module processes the data monitored by the pressure sensor and determines the blood pressure change, and an activity degree of the nerve can be determined by measuring a signal such as the blood pressure of the human body, so as to screen out the patients with an overactive sympathetic nerve, and a surgical effect of a denervation surgery can also be evaluated before or after the surgery, and can be used to determine whether to perform an ultrasonic ablation again.

A system, ablation probe, and method is provided for treating tissue, e.g., tissue having tumors. The treatment system is configured to automatically deliver infusaid to tissue when needed and comprises an ablation probe having an ablative element and at least one perfusion exit port. The system further comprises an ablation source operably coupled to the ablative element, and a pump assembly operably coupled to the perfusion exit port(s). The pump assembly is configured for pumping infusaid out through the perfusion exit port(s), preferably during the ablation process. The system further comprises a feedback device configured for controlling the amount of infusaid displaced by the pump assembly based on a sensed tissue parameter, e.g., tissue temperature or tissue impedance.

A surgical device and associated methods are disclosed. In one example, the surgical device includes tungsten disulfide covering all or a portion of a component.

A device for (RF) skin treatment comprising an active electrode having a first skin contact surface for electrical contact with a skin of a user and during use A return electrode having a second skin contact surface for electrical contact with the skin of the user during use. An RF generator to supply an RF treatment voltage between the active electrode and the return electrode to heat the skin below the active electrode. A coupling member arranged on the first skin contact surface comprising an electrically conductive material to improve the electrical coupling of the active electrode to the skin surface. The coupling member comprising a first layer of a first electrically conductive material arranged on the first skin contact surface, and a second layer of a second electrically conductive material, arranged on a side of the first layer remote from the first skin contact surface.

A system is provided to detect a breach of an insulative sheath in a bipolar electrosurgical instrument the system including: a first pulse detection circuit to detect a first high frequency (HF) signal component of a HF signal conducted on a lead of the bipolar instrument; a second pulse detection circuit to detect a second HF signal component of the HF signal conducted on a conductive shield surrounding the lead; magnitude difference sampling logic to produce sample values indicative of magnitude difference between the first HF signal component and the second HF signal component; and current detection logic to detect current flow between the shield and anatomical tissue based upon the sample values.

A nerve mapping system includes an elongate medical device, a non-invasive mechanical sensor, and a processor. The elongate medical device includes a distal end portion configured to explore an intracorporeal treatment area of a subject, and the distal end portion includes an electrode. The non-invasive mechanical sensor is configured to provide a mechanomyography output signal corresponding to a monitored mechanical response of a muscle innervated by the nerve. The processor is in communication with the electrode and the sensor, and is configured to provide a plurality of electrical stimuli to the electrode. Each of the plurality of stimuli is provided when the electrode is located at a different position within the intracorporeal treatment area. The processor determines the likelihood of a nerve existing at a particular point using the magnitudes of each of the stimuli and the detected response of the muscle.

An apparatus (10) serves for attachment of a light receiving device (24) for light analysis on an instrument (11) or an instrument component (12) during surgery by the surgery user of a surgical instrument (11) or their assistant. The apparatus (10) is preferably configured to releasably attach the light receiving device (24) on the instrument (11) or the instrument component (12). The apparatus (10) can comprise a light receiving device (24) and an electrode (15) fixed relative thereto. The electrode (15) can alternatively also be part of the instrument (11). The apparatus (10) can be releasably attachable to the instrument (11) or the instrument component (12) and can form an adapter for attachment of the light receiving device (24) on the instrument (11) or the instrument component (12) or can also be configured as part of the instrument (10).

An electrosurgical instrument may comprise a pair of jaw members configured to move between an open position and a closed position. In the closed position, the pair of jaw members may be configured to exert a gripping force on material placed between working surfaces of the pair of jaw members. A first jaw member of the pair of jaw members may comprise a first electrode, and a second jaw member of the pair of jaw members may comprise a second electrode and a third electrode.

A catheter for focal cardiac ablation by irreversible electroporation includes a flexible catheter body, a plurality of tines disposed at a distal end of the catheter body, a flexible shaft, a return electrode, and an electrical conductor. The plurality of tines are formed of an electrically conductive material and configured to deploy from a lumen at the distal end of the catheter body. Each tine of the plurality of tines is configured to self-bias from a linear configuration within the lumen to a curved configuration when deployed from the lumen. The shaft is mechanically and electrically coupled to the plurality of tines. The shaft is configured to deploy the tines from the lumen when the shaft is moved toward the distal end of the catheter body. The return electrode is disposed on an outer surface of the catheter body. The electrical conductor is electrically coupled to the return electrode.

A reducer device for insertion into a surgical cannula includes a tubular member having a proximal opening and a distal opening and an electrically conductive component configured and positioned to provide an electrically conductive path from an interior of the tubular member to an exterior of the tubular member. The electrically conductive path is localized along an axial length of the tubular member. A method of configuring a surgical device includes positioning a surgical cannula within an incision of a patient's body wall, positioning a reducer device within the surgical cannula, and positioning a surgical instrument within the reducer device. Positioning the surgical instrument within the reducer device includes forming an electrically conductive pathway between the surgical cannula and the surgical instrument.