Wewei Tech Launches PI/PTFE High-Performance Coatings, Empowering the Upgrade of High-End Interventional Medical Devices

Shanghai Wewei Tech Co., Ltd. (Wewei Tech) is deeply engaged in the precision manufacturing field of interventional medical devices, focusing on core material and surface process innovation, and officially launchesPI (Polyimide)/PTFE (Polytetrafluoroethylene) high-performance special coating products. With the synergistic technical advantages of dual coatings, it solves the shortcomings of traditional medical device surface performance, provides high-reliability and long-life surface protection and function optimization solutions for implantable and interventional devices, and helps upgrade the performance of domestic high-end medical devices and enhance clinical value.

PI Coating: High Temperature Resistance & High Insulation, Building a "Safety Foundation" for Implantable Devices

Known as the "king of polymer materials", PI (Polyimide) coating is prepared by Wewei Tech using a precision dip-coating and curing process. The coating thickness is precisely controlled at the micron level with a tolerance of ≤±0.003mm, balancing extreme thin-wall characteristics and excellent structural strength. It can withstand long-term high temperatures up to 260℃ and instantaneous high temperatures up to 400℃, with an insulation strength of more than 15kV/mm, and outstanding mechanical strength and dimensional stability.

As a core insulation and protection coating for implantable medical devices, PI coating is widely used in scenarios such as the insulation layer of neural stimulation electrodes, the packaging of implantable sensors, and the substrate of electrophysiological catheters. Its excellent biocompatibility and chemical inertness can resist body fluid erosion for a long time, effectively isolate the damage of the external environment to precision components, and avoid tissue rejection, providing stable and reliable long-term protection for long-term implantable devices.

PTFE Coating: Low Friction & Anti-Adhesion, Enhancing the "Smooth Experience" of Interventional Surgery

PTFE (Polytetrafluoroethylene) coating is characterized by an "extremely low friction coefficient" (as low as 0.04), and also has excellent non-adhesiveness, corrosion resistance and biocompatibility. Wewei Tech adopts ultrasonic coating technology to solve the pain points of uneven coating and weak adhesion in traditional processes, realizing uniform and dense coating on complex three-dimensional surfaces such as catheters and guidewires.

When applied to the surface of interventional surgical instruments, PTFE coating can significantly reduce tissue insertion resistance and the risk of vascular intima injury; its strong non-adhesiveness can effectively inhibit the adhesion of blood and tissue fluid, reducing the risk of thrombosis and postoperative infection. It is suitable for the needs of instruments in multiple scenarios such as cardiovascular, neurological and peripheral intervention, greatly improving the smoothness, accuracy and safety of surgery.

Dual Coating Synergy + Strict Quality Control, Building a Benchmark for Medical Coatings

Wewei Tech can provide customized services for PI single coating, PTFE single coating and PI/PTFE composite coating, adapting to the performance needs of different instruments. The composite coating combines the high-strength insulation protection of PI and the low-friction lubrication advantage of PTFE, realizing functional complementarity, and is suitable for high-end products such as balloon catheters and electrophysiological composite catheters.

In the future, Wewei Tech will continue to deepen the research and development of medical special coating technology, optimize coating processes and product performance, expand the application of PI/PTFE coatings in more high-end medical device scenarios, empower the high-quality development of the interventional medical industry with core material innovation, and provide safer and more efficient instrument solutions for global doctors and patients.