A system includes a signal generator, configured to pass a generated signal, which has two different generated frequencies, through a circuit including an intrabody electrode. The system further includes a processor, configured to identify, while the generated signal is passed through the circuit, a derived frequency, which is derived from the generated frequencies, on the circuit, and to generate, in response to identifying the derived frequency, an output indicating a flaw in the electrode. Other embodiments are also described.

Various embodiments provide an electrosurgical instrument for delivering electromagnetic (EM) energy and ultrasonic vibrations for treating biological tissue. The electrosurgical instrument comprises: an instrument shaft arranged to convey EM energy and an electrical signal for driving a magnetostrictive ultrasound transducer; a distal end assembly arranged at a distal end of the instrument shaft to receive the EM energy from the instrument shaft and deliver the EM energy from the distal end assembly for tissue treatment; and a magnetostrictive ultrasound transducer arranged to receive the electrical signal from the instrument shaft and generate ultrasonic vibrations around the distal end assembly for tissue treatment. Other embodiments provide an electrosurgical generator, and an electrosurgical apparatus comprising the instrument and generator.

Provided are adjustable protective covers for automated medical devices, that protect inner and/or outer components of the medical device, while maintaining the functionality of the automated device.

A medical device having multiple degrees of freedom independent of each other. The medical device includes a handle, an end effector, and a tubular section extending between the handle and the end effector. The end effector is configured to be rotated about a first axis extending through the tubular section without rotating the tubular section. And, the tubular section is configured to be rotated about the first axis with the end effector.

Pulmonary vein isolation catheters and associated devices, systems, and methods are disclosed herein. In some embodiments, a pulmonary vein isolation catheter includes a tip section having an expandable portion and a deployment member. The expandable portion includes a plurality of mesh electrode panels that are electrically insulated from one another. The expandable portion is mechanically coupled to (i) the deployment member at a distalmost portion of the tip section and (ii) a distal end portion of a catheter shaft. The expandable portion is expandable and compressible via proximal and distal movement, respectively, of the deployment member. In some embodiments, the expandable portion in a deployed state is pear- or onion-shaped and includes a nose portion and/or an active body portion. The nose portion can be insulated and/or configured to fit within a pulmonary vein and position the active body portion against tissue about the ostium of the pulmonary vein.

The invention generally relates to systems and methods for therapeutically modulating nerves in or associated with a nasal region of a patient for the treatment of a rhinosinusitis condition.

Computer-implemented digital image analysis methods, apparatuses, and systems for robotic installation of surgical implants are disclosed. A disclosed apparatus plans a route within an anatomy of a patient from an incision site to a surgical implant site for robotic installation of a surgical implant. The apparatus uses digital imaging data to identify less-invasive installation paths and determine the dimensions of the surgical implant components being used. The apparatus segments the surgical implant into surgical implant subcomponents and modifies the surgical implant subcomponents, such that they can be inserted using the identified less-invasive installation paths.

The present invention provides a method for treating diabetes and nonalcoholic fatty liver disease (NAFLD), associated condition or disorder thereof, or symptoms thereof suffered by a subject such as a mammal (e.g. a human patient or a pet), comprising (1) placing one or more electrodes within a target blood vessel of the subject and against the target blood vessel wall, wherein the target blood vessel includes the celiac artery and/or a segment of the abdominal aorta terminated at its junction with the celiac artery; (2) adhering a surface electrode on an external surface such as skin of the subject; and (3) releasing a therapeutically effective amount of radiofrequency energy through the one or more electrodes to nearby tissues, so as to increase the temperature of the nearby tissues and induce a thermal alteration of the nearby tissues.

A catheter for denervation includes a catheter body extending in one direction to have a proximal end and a distal end and having an inner space formed along the longitudinal direction thereof, a movable member provided at the distal end of the catheter body to be movable along the longitudinal direction of the catheter body, an operating member having a distal end connected to the movable member to move the movable member, a plurality of support members having one end connected to a terminal of the catheter body and the other end connected to the movable member, wherein when the movable member moves to decrease a distance between the terminal of the catheter body and the movable member, at least a partial portion of the plurality of support members is bent so that the bending portion moves away from the catheter body, a plurality of electrodes respectively provided at the bending portion of the plurality of support members to generate heat, and a lead wire respectively electrically connected to the plurality of electrodes to give a power supply path for the plurality of electrodes.

Transducer-based systems and methods may be configured to display a graphical representation of a transducer-based device, the graphical representation including graphical elements corresponding to transducers of the transducer-based device, and also including between graphical elements respectively associated with a set of the transducers and respectively associated with a region of space between the transducers of the transducer-based device. Selection of graphical elements and/or between graphical elements can cause activation of the set of transducers associated with the selected elements. Transducer activation characteristics, such as initiation time, activation duration, activation sequence, and energy delivery characteristics, can vary based on numerous factors. Visual characteristics of graphical elements and between graphical elements can change based on an activation-status of the corresponding transducers. Activation requests for a set of transducers can be denied if it is determined that a transducer in the set of transducers is unacceptable for activation.