Medical device conductors often need to perform multiple functions within a single assembly. One section may need to transmit electrical signals, another must move smoothly through a lumen, and another may require direct contact with tissue. Advanced coating technologies help meet these competing demands by providing electrical insulation, reducing friction, improving durability, or combining several benefits in the same device. Materials such as ETFE, PFA, FEP, PTFE, and polyimide each offer unique performance characteristics that allow engineers to balance dielectric strength, flexibility, lubricity, abrasion resistance, and size constraints based on application requirements. [2026-232_F...s_v3.0 (1) | PDF]

Selecting the right coating is only part of the solution. Many medical devices require coatings to be removed at specific locations to allow for welding, sensing, stimulation, or electrical connections. Laser ablation provides a precise, non-contact method for removing coatings without damaging the underlying conductor. Unlike traditional mechanical stripping, laser ablation minimizes the risk of conductor damage while enabling highly controlled exposure windows along a wire’s length. This capability supports advanced device designs, including multi-electrode configurations and complex conductor geometries used in neurostimulation, diagnostic, and catheter-based applications. [2026-232_F...s_v3.0 (1) | PDF]

The greatest value comes from combining coating technologies and laser ablation strategies to match the functional demands of each section of a medical device. For example, conductors may use dielectric coatings for insulation, lubricious coatings to improve device navigation, and selectively ablated regions for electrode contacts or terminations. By tailoring polymer selection, coating thickness, and exposure locations, engineers can optimize device performance while meeting demanding anatomical and functional requirements. Fort Wayne Metals partners with device designers to evaluate these trade-offs and develop coating and ablation solutions that support next-generation medical technologies.

Categories: Advanced materials