Abstract: An electrosurgical device kit includes an elongate first member, an elongate second member disposed adjacent to the first member, the second member being at least movably coupled to the first member, a first electrode head removably attachable to the first member, a second electrode head removably attachable to the first member, and a third electrode head coupled to the second member. The first, second, and third electrode heads are configured to apply a current to a tissue, the first and second electrode heads being non-identical.

Abstract: A lithotripsy device comprises a feedback device for providing force indicia generated during a lithotripsy procedure. The feedback device comprises a slide configured to attach to a handpiece of a lithotripsy device, a positioning device connected to the slide to adjust a position of the slide relative to the handpiece, and a feedback indicator connected to the slide to provide feedback related to a force being applied to the slide to displace the slide relative to the handpiece. A method of performing a lithotripsy procedure comprises contacting a stone with a shaft extending from a handle of a lithotripsy device, applying energy from the shaft to the stone to fragment the stone, applying a force to the stone from the shaft via the handle to facilitate transfer of the energy to the stone, and providing an output of an amount of force that the shaft contacts the stone.

Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Abstract: An electrosurgical instrument includes a light source, a first conductor, a second conductor, an insulation material positioned between the first conductor and the second conductor, and a light pipe that carries light from the light source to the insulation material.

Abstract: A forceps includes an end effector assembly with a first jaw having a tissue sealing surface and an electrode on the sealing surface, and a second jaw having a tissue sealing surface and an electrode on the sealing surface. The first jaw and the second jaw move between an open position and a closed position. The sealing surface of at least one of the first jaw and the second jaw has a flexible medial section and rigid lateral sections.

Abstract: An electrosurgical assembly that includes one or more electrodes, and one or more AC conductors electrically connecting the one or more electrodes to a power source that is configured to generate and output an AC power signal to the one or more electrodes via the one or more AC conductors. A rectifier is electrically connected to the one or more AC conductors, and configured to convert the AC power signal into a DC power signal. A light source is electrically powered by the DC power signal.

Abstract: A system for imaging and treating tissue can include or use an imaging sensor adapted to receive imaging information from a location internal to a human or animal subject, a tissue therapy output for applying a tissue therapy to tissue at the location internal to the subject, and controller circuitry, comprising signal-processing circuitry configured for image-processing the imaging information to determine a structure or other characteristic at or near the location internal to the subject, and to tailor a parameter or algorithm, controlling the tissue therapy output, at least in part based on the imaging information.

Abstract: A surgical device to deliver energy to tissue can include a hand piece and a shaft. The hand piece can be operable to control the surgical device. The shaft can extend along a longitudinal axis and the shaft can include a proximal portion and a distal portion opposite the proximal portion. The proximal portion can be connected to the hand piece. The device can include an end effector connected to the distal portion of the shaft. The end effector can include an active electrode, an insulator at least partially surrounding the active electrode, and a return electrode adjacent the insulator. The device can include a heat pipe connected to the return electrode and extending at least partially through the shaft. The heat pipe can be configured to transfer heat from the return electrode to the hand piece.

Abstract: A surgical system for treating tissue, the system comprising a surgical device and a control system. The surgical device can include an end effector and a sensor. The end effector can include an active electrode for treating tissue. The sensor can be configured to generate a data signal corresponding to a characteristic of the end effector or the tissue. The control system can be operably coupled to the sensor. The control system can be configured to deliver power to the active electrode and can be configured to adjust the power during a period of time that the data signal is received by the control system.

Abstract: A biliary diagnostic device comprises a tubular body comprising an outer wall and an internal lumen, and a biliary diagnostic sensor comprising for analyzing biological matter in contact with the tubular body. A method of guiding an endoscope to a bile duct comprises inserting the endoscope into a duodenum, engaging a sensor with biological matter, electrically analyzing biological matter with the sensor to identify an electrical parameter, identifying liver bile in the biological matter from the electrical parameter, and guiding the endoscope through the duodenum based on the bile. A method of identifying biological matter comprises engaging a medical device sensor with biological matter in a bile duct, electrically analyzing biological matter with the sensor to identify an electrical parameter, identifying biological matter from a liver, pancreas or gall bladder from the electrical parameter, and outputting indicia of the biological matter to a user of the medical device.

Abstract: A device comprising: (a) a first working arm; (b) a shuttle located on the first working arm, and (c) a bias device; wherein the bias device biases the first working arm when the shuttle is in a first position, and wherein the bias device is free of biasing the first working arm when the shuttle is in a second position.

Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Abstract: An instrument including a first arm, a second arm, and a blade. The first arm includes a lumen in communication with a source of irrigation fluid and one or more outlets in communication with the lumen for delivering the irrigation fluid to a surgical site. The instrument is switchable between a first configuration and a second configuration. In the first configuration, the instrument is configured to deliver a first therapy current through a distal end of the first arm, a distal end of the second arm, or both. In the second configuration, a distal end of the blade extends beyond the distal end of the first arm and beyond the distal end of the second arm.

Abstract: A supply cart includes a transceiver, a processor, at least one sensor and at least one indicator. A transceiver receives endoscope procedure data from a server. A processor is configured to read the endoscope procedure data and determine an instrument and one or more consumables needed for a procedure associated with the endoscope procedure data. At least one sensor is configured to determine a presence or absence of the instrument at the supply cart. At least one indicator is configured to provide an indication relating to the presence or the absence of the instrument at the supply cart.

Abstract: An electrosurgical system can include a surgical device configured to adjust energy delivery in accordance with a specified cutting-to-coagulation relationship. The specified cutting-to-coagulation relationship can be determined based at least in part on an impedance or other parameter associated with tissue or an environment at or near the one or more electrodes. The specified cutting-to-coagulation relationship can be determined automatically (e.g., without requiring user input) and adaptively based on the sensing, such as in real-time as the therapy progresses.

Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

Abstract: A forceps is provided that includes a first frame and a second frame opposing the first frame. One or both of the first and second frames include a polymer overmold where each of the first and second polymer overmolds have first and second conductor layers deposited thereon. The first and second conductor layers can have the same pattern or alternating patterns. When the first and second conductor layers have the same pattern, the forceps can include standoffs such that the first and second conductor layers are electrically isolated when the forceps is in a closed position. When the first and second conductor layers have alternating patterns, when the forceps is in a closed position, the patterns alternate such that the first and second conductor layers remain electrically isolated.

Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.