Devices and systems used to ablate tissue of a tumor using laser energy are disclosed. The devices and systems include a laser probe and a magnetic resonance (MR) safe temperature probe. The MR safe temperature probe includes an optical sensor. A bone anchor fixture separates the laser probe and the MR safe temperature probe to prevent interference in the MR safe temperature probe data. Proton Resonance Frequency (PRF) thermometry is used to model a temperature of a pixel of an MR image located adjacent the optical sensor. The modeled pixel temperature and the measured temperature are compared and monitored. Exceeding a threshold difference value causes an intervening action to occur.

A device having an optical element with a conductive coating. The device may include an optical element, a conductive material and at least one connector. The conductive material is disposed on at least a portion of the optical element. The optical element, for example, may be an object lens of an endoscope or an optical coupler. The connectors (acting as terminal(s)) are capable of providing energy (such as electrical energy) to the conductive material. In one aspect, the conductive material is an optically transparent material. Advantageously, the device may allow visualization of an objectsuch as body tissue or other matterconcurrent with the application of energy to the object via the conductive coating. This allows the user to observe the alteration of tissue and other matter in real time as the energy is delivered.

Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present technology, for example, is directed to a treatment device having a multi-electrode array configured to be delivered to a renal blood vessel. The array is selectively transformable between a delivery or low-profile state (e.g., a generally straight shape) and a deployed state (e.g., a radially expanded, generally spiral/helical shape). The multi-electrode array is sized and shaped so that the electrodes or energy delivery elements contact an interior wall of the renal blood vessel when the array is in the deployed (e.g., spiral/helical) state. The electrodes or energy delivery elements are configured for direct and/or indirect application of thermal and/or electrical energy to heat or otherwise electrically modulate neural fibers that contribute to renal function.

A component for use in magnetic resonance image-guided laser ablation has: d) a one-piece cannula having at least one laser-transmitting fiber fixed thereto; e) the one-piece cannula comprising a composition having a proximal insertion end and a thermal energy-emitting tip; and f) fluid conducting channels fixed to the energy-emitting tip.

The fluid conducting channels have fluid-carrying dimensions sufficient to transport sufficient liquid at 15 C. through the channels to cool both tissue adjacent the channels and the tip during emission from a tissue ablating laser within the thermal energy emitting tip. The composition of the one-piece cannula is at least translucent/transparent to at least 50% of infrared radiation between 900-1200 nm emitted from within the cannula at the thermal energy-emitting tip. The composition of the one-piece cannula should have a melting temperature of at least 150 C.

An apparatus includes a catheter assembly and an end effector. The catheter assembly includes an outer sheath with a distal end. The end effector is associated with a distal end of the catheter assembly. The end effector includes a panel assembly with microelectrodes for electrophysiological (EP) mapping. The microelectrodes are configured in a matrix within the panel assembly and provide multiple points of contact with the target tissue for EP mapping. The panel assembly can transition between a first contracted state and a second expanded state. The panel assembly can fit within the outer sheath in the first state. The panel assembly can expand outwardly away from a longitudinal axis defined by the catheter assembly in the second state once exposed distally relative to the distal end of the outer sheath.

Devices, systems, and methods for treating stones in anatomical structures are disclosed. A device may include an elongate member and a tubular member extending distally from the elongate member. The elongate member may define one or more lumens with an opening at a distal end of the elongate member. The tubular member may be configured to collapse to a pre-determined shape when in a relaxed state and expand in response to receiving an object. The device may be used with a scope, such as a ureteroscope, lithotripsy devices, and/or other medical devices or systems.

A drive device includes: a drive signal generator configured to generate a pair of drive signals, a pair of buffer circuits, a pair of switching elements configured to repeatedly turn on and off the pair of drive signals, a first radiation material that has a longitudinal axis and that is arranged to face one of the pair of switching elements, a second radiation material that has a longitudinal axis and that is arranged to face an other one of the pair of switching elements, a fan and a casing. The switching elements, the first radiation material, and the second radiation material are positioned within a projection plane of the fan viewed along the longitudinal axes of the first radiation material and the second radiation material.

A device having an optical element with a conductive coating. The device may include an optical element, a conductive material and at least one connector. The conductive material is disposed on at least a portion of the optical element. The optical element, for example, may be an object lens of an endoscope or an optical coupler. The connectors (acting as terminal(s)) are capable of providing energy (such as electrical energy) to the conductive material. In one aspect, the conductive material is an optically transparent material. Advantageously, the device may allow visualization of an objectsuch as body tissue or other matterconcurrent with the application of energy to the object via the conductive coating. This allows the user to observe the alteration of tissue and other matter in real time as the energy is delivered.

A drive device includes a casing including a drive signal generator configured to generate a drive signal, a switching element configured to repeatedly turn on and off at a drive frequency of the drive signal or higher, and a heat sink including an outer surface provided with the switching element and an inner surface provided with at least one radiation fin. The drive device also includes first and second fans arranged such that airflows along the outer surface and inner surface of the heatsink are simultaneously formed from the first fan toward the second fan.

An electrosurgical device for harvesting a graft of a tendon is discussed and illustrated variously herein. The device can include a housing having an elongate shape, the housing configured for insertion into an incision of a patient and is configured to contact the tendon upon insertion. The device can include an actuation element moveable relative to the housing. The device can include an electrode coupled to the actuation element for movement therewith, the electrode is configured to cut the tendon using radiofrequency (RF) energy.