A conductive adhesion preventing film for medical use, includes: a nonconductive base material; and a linear conductor having a length of 10 m or more and a diameter of more than 50 nm and contained in the conductive adhesion preventing film by an amount of 5% by mass or more and 40% by mass or less, wherein the conductive adhesion preventing film is formed on an electrode surface of a medical device performing at least one of incision, resection, coagulation, and ablation on living tissue by applying a high frequency voltage.

Described herein are devices and methods for performing ablation using ablation catheters with one or more patterned and textured active areas. An ablation catheter includes a proximal section, a distal section, and a sheath coupled between the distal section and the proximal section. The distal section includes an active area with a patterned, textured surface that is configured to apply radiofrequency (RF) energy, cryogenic cooling, or laser energy output to a portion of target tissue, such that the portion of target tissue is ablated. The patterned, textured surface of the active area is configured to maintain contact between the target tissue and the active area.

A vitreous enamel coating for an electrosurgical metal cutting blade, in which incident light striking the vitreous enamel coating is diffusely reflected or absorbed, and the vitreous enamel coating exhibits a 60? gloss value less than 100 gloss units as measured according to ASTM D523-14, Standard Test Method for Specular Gloss. The coating reduces glare from light sources such as a nearby plasma-mediated discharge, operating theater lights or lights provided on an electrosurgery apparatus. The coating may also lessen interference with markers, sensors or other instruments designed to measure light emitted by or passing through nearby tissue such as by transillumination.

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.

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.

The present invention is direct to a nano-probe corona tool and uses thereof. A nano-probe corona tool is disclosed having a tip with a diameter in the nano-scale, typically around 100 nm. The nano-probe corona tool is constructed of electrically conductive material. On the other end of the tool, a pulsed voltage source outputs a pulsed voltage to generate a pulsed electrical potential at the tip. The pulsed electrical potential at the tip causes a plasma discharge corona to occur. Uses of the corona discharge include, but are not limited to, optical emission spectroscopy, in the enhancement of deposition of coatings and nanoscale welding, e.g., nanotube or nanowires to a contact pad and welding two nanowires together, and in nanoscale surgery. For example, a nano-probe comprising CNTs may be inserted into cell membranes. The resulting corona discharge may be used to destroy tumors within the cell.

A colored (viz., not black) vitreous enamel coating for an electrosurgical metal cutting blade provides heat-resistant, durable blade coloration and facilitates differentiation or discrimination between, or identification of, different blades. Different colors may be employed on different blade shapes in an array of blades, on blades used for different surgical procedures, or on blades used on different tissue types. The color may be applied to a portion of a blade to denote an edge or other feature. The color may preferentially absorb the primarily blue-hued light emitted by an electrosurgery plasma and preferentially reflect light of other hues; make the blade more visible against surrounding tissues; or discourage reflection of visible or other light (e.g., infrared radiation) in colors that might interfere with markers, sensors or other instruments designed to measure light emitted by or passing through nearby tissue such as by transillumination.

A method for attaching a split ring electrode to a catheter tip section includes providing a tubing with a lumen and an opening in the tubing side wall, passing an electrode lead wire through the opening, and wrapping the lead wire around the tubing. A split ring electrode is mounted on the tubing over the wrapped lead wire and opening, with electrically-conductive thermoplastic elastomeric adhesive applied between the ring electrode and the outer surface of the tubing, and reheated to reflow.

Various aspects of the present disclosure are directed toward apparatuses, systems, and methods for applying ablation therapy to a tissue region. The apparatuses, systems, and methods may include a balloon structure and one or more electrodes arranged on or within the balloon structure and configured to deliver energy to the tissue region.

An implantable lead including a lead body, an electrode coupled to the lead body, and at least one cellular modulation segment. The lead body has a proximal end and a distal end. The lead body includes an outer layer defining a lumen. The outer layer has an outside surface. The electrical conductor is disposed within the lumen of the outer layer. The electrode is coupled to the lead body. The electrode is in electrical communication with the electrical conductor. The at least one cellular modulation segment is on the outside surface of the outer layer. The at least one cellular modulation segment includes topographic surface features configured to modulate cellular responses. The topographic surface features include a plurality of raised nodes and a plurality of raised ridges interconnecting the plurality of nodes and forming a lattice structure.