An electrosurgical instrument comprising an end effector is disclosed. The end effector comprises a first jaw and a second jaw. At least one of the first jaw and the second jaw is movable to transition the end effector from an open configuration to a closed configuration to grasp tissue therebetween. The second jaw comprises linear portions cooperating to form an angular profile and a treatment surface comprising segments extending along the angular profile. The segments comprise different geometries and different conductivities. The segments are configured to produce variable energy densities along the treatment surface.

Provided is a flex-PCB catheter device that is configured to be inserted into a body lumen. The flex-PCB catheter comprises an elongate shaft, an expandable assembly, a flexible printed circuit board (flex-PCB) substrate, a plurality of electronic components and a plurality of communication paths. The elongate shaft comprises a proximal end and a distal end. The expandable assembly is configured to transition from a radially compact state to a radially expanded state. The plurality of electronic elements are coupled to the flex-PCB substrate and are configured to receive and/or transmit an electric signal. The plurality of communication paths are positioned on and/or within the flex-PCB substrate. The communication paths selectively couple the plurality of electronic elements to a plurality of electrical contacts configured to electrically connect to an electronic module configured to process the electrical signal. The flex-PCB substrate can have multiple layers, including one or more metallic layers. Acoustic matching elements and conductive traces can be includes in the flex-PCB substrate.

Various embodiments disclosed relate to a non-stick layer for insulative elements on electrosurgical cutting tools. The present disclosure includes systems, devices, and methods of making and using a non-stick layer on insulative element. The non-stick layer can include coatings, surface structures, or combinations thereof.

A medical gripping tool includes a synthetic body and a metallic layer on a surface of the synthetic body, whereby the synthetic body is configured to be elastically reshaped in its expected application. According to the invention, the gripping tool is configured so that the metallic layer is structurally reshaped in the expected application.

Embodiments of the invention are related to leads with topographic surface features and related methods, amongst other things. In an embodiment, the invention includes an implantable lead including a lead body having a proximal end and a distal end, the lead body including an outer layer defining a lumen, the lead body further including a first electrical conductor disposed within the lumen of the outer layer. The implantable lead can further include a first electrode coupled to the lead body, the electrode in electrical communication with the first electrical conductor. The implantable lead can also include a cellular modulation segment on the external surface of the lead body, the cellular modulation segment comprising topographic surface features configured to modulate cellular responses. Other embodiments are also included herein.

A surgical instrument comprising a motor assembly, a shaft defining a shaft axis, a distal head, a rotary drive member, and a distal head lock member movable between a first position where the distal head is unlocked from the shaft and a second position where the distal head is locked to the shaft is disclosed. The motor assembly comprises a motor and a controller configured to operate the motor in first and second operating modes. The distal head comprises an end effector movable between an open configuration and a closed configuration. The distal head is rotated about the shaft axis when the distal head lock member is in the first position and the rotary drive member is actuated. The end effector is moved from the open configuration toward the closed configuration when the distal head lock member is in the second position and the rotary drive member is actuated.

A surgical system comprising a generator and a surgical instrument configured to receive power from the generator is disclosed. The surgical instrument comprises a housing, a shaft defining a longitudinal axis, an end effector, and an internal charge accumulator. The housing comprises a motor. The end effector is operably responsive to actuations from the electric motor, transitionable between an open and closed configuration, and rotatable about an articulation axis transverse to the longitudinal axis. The generator is incapable of supplying a sufficient power directly to the motor to perform the actuations. The internal charge accumulator is in electric communication with the generator and supplies power to the motor. The internal charge accumulator is chargeable by the generator to a threshold value at a charge rate dependent on a charge level of the internal charge accumulator. The charge rate is independent of a charge expenditure by the surgical instrument.

Various embodiments disclosed relate to a device and methods for electrosurgery, where the device end effector includes an anti-smoke layer. The present disclosure includes a device having first and second electrodes that include the anti-smoke layer, which can be a hydrophobic layer to aid in reduction of smoke production during operation.

Various aspects of the present disclosure provide a medical device. The medical device includes a substrate. The medical device further includes a substantially transparent or translucent anti-stick coating disposed on a surface of the substrate. The anti-stick coating includes one or more fluorophores internally distributed in the anti-stick coating.

A method of manufacturing a surgical instrument that includes an energized feature operable to apply ultrasonic energy or RF energy to tissue. The method includes forming at least one of a microscopic surface pattern or a nanoscopic surface roughness into a base surface of the energized feature to produce at least one recessed portion. The method also includes applying a hydrophobic coating that includes at least one of silicone, titanium nitride, chromium nitride, or titanium aluminum nitride to at least the recessed portion of the energized feature after forming at least one of the microscopic surface pattern or the nanoscopic surface roughness.