How to Customize Braided Layers for Interventional Devices?

The braided reinforcement layer is the core structural component of interventional catheters and minimally invasive devices, directly determining pushability, torque response, flexibility and service life. Many medical device R&D and manufacturing professionals face the same challenge: how to match different wire types, braiding machines and braiding patterns to specific clinical application scenarios. Shanghai Wewei Tech specializes in medical precision braiding, delivering one-stop braiding solutions for round wire, flat wire and composite wire through comprehensive equipment, ultra-high processing precision and mature technology systems, fully addressing diversified production demands across the industry.

1. Multi-Type Wire Processing with Industry-Leading Precision

Wire geometry forms the foundation of braided layer performance. We provide braiding services for three mainstream medical wire types with exceptional minimum processing dimensions. Round wire can be processed as fine as 0.038mm (0.0015 inches), ideal for micro catheters and precision minimally invasive devices requiring both flexibility and structural strength. Flat wire achieves minimum dimensions of 0.013mm × 0.038mm (0.0005" × 0.0015"), with its flat profile optimizing space utilization, enabling tighter braid-to-tube conformity and reducing overall device outer diameter. Composite wire integrates advantages of multiple materials, simultaneously delivering high strength, kink resistance and special functional properties, widely used in cardiovascular and neurointerventional high-end medical devices.

2. Full Range Braiding Machines for Flexible Density Control

To accommodate varying strength and density requirements, we are equipped with complete specifications of high-precision braiding machines: 16-carrier, 32-carrier, 40-carrier, 64-carrier, 72-carrier, 96-carrier and 144-carrier configurations. Carrier count directly determines braid density and mechanical performance: lower carrier counts produce looser braid patterns with exceptional flexibility, suitable for devices navigating tortuous and complex vasculature; higher carrier counts create denser braids with superior radial support and crush resistance, ideal for guiding catheters and therapeutic devices requiring high rigidity. Our extensive equipment portfolio enables flexible process switching, seamlessly supporting both prototype development and high-volume mass production.

3. Multiple Braiding Patterns for Tunable Mechanical Performance

We employ three mainstream medical braiding patterns—1×1, 1×2 and 2×2—with customizable braid textures based on product specifications. The 1×1 braid features uniform structure distribution, delivering exceptional softness and flexibility with superior bend resistance. The 1×2 braid balances strength and maneuverability, offering maximum versatility and compatibility with most conventional interventional catheters. The 2×2 braid creates tighter interlacing, delivering outstanding kink resistance and tensile strength, suitable for medical devices requiring higher operational forces. Our technical team matches optimal braiding configurations based on device application scenarios, ensuring stable and smooth intraoperative handling.

4. Strict Process Control Upholding Medical-Grade Manufacturing Standards

The entire braiding process strictly complies with medical device manufacturing regulations, with precise control over wire tension, braiding angle and operating speed throughout production, effectively eliminating common issues such as thread jumping, uneven density and wire breakage. From raw material incoming inspection to final product testing, every process step implements standardized management, ensuring consistent performance and stable quality across all production batches. Whether customers require small-batch prototyping or large-scale mass production orders, we maintain consistently ultra-high processing precision, establishing a solid quality foundation for all types of braided minimally invasive devices.

With comprehensive wire type capabilities, full-range equipment and diversified braiding technologies, Shanghai Wewei Tech delivers one-stop solutions for medical braiding challenges. Leveraging our precise and reliable technological expertise, we drive innovation and development in the minimally invasive medical device industry, providing cost-effective customized braiding services for global customers.