PI Composite Braided Tubing

Chinese Made Extruded Medical Tubing with ISO 13485 PI Composite Braided Tubing

Introduction

Material：PI（Polyimide）

PI Composite Braided Tubing

PI Composite Braided Tubing

Performance Advantages and Medical Applications of Medical-Grade PI Composite Braided Tubing

Performance Advantages

1. Extremely High Mechanical Strength and Tensile Resistance

• The inherent high strength of Polyimide (PI), combined with a braided reinforcement layer made of high-performance fibers (e.g., polyester, aramid fiber), endows the tubing with exceptional tensile strength, crush resistance, and burst pressure resistance, enabling it to withstand the complex mechanical stresses during surgical procedures.

2. Excellent Pushability and Trackability

• The tubing maintains good flexibility while possessing high strength, allowing it to be easily navigated through tortuous anatomical structures like blood vessels. It offers superior trackability, minimizing irritation and damage to the vessel walls.

3. Superior Kink Resistance

• The tight braided structure effectively prevents the tubing from collapsing or kinking when bent, ensuring an uninterrupted pathway for blood flow, medications, or devices, even in complex paths.

4. Outstanding Dimensional Stability and Low Elongation

• The tubing exhibits minimal elongation under force. This allows physicians to achieve precise 1:1 torque transmission and displacement control, which is critical for interventional procedures requiring accurate positioning.

5. High Biocompatibility and Hemocompatibility

• Medical-grade PI material offers excellent biocompatibility and hemocompatibility, typically complying with standards like USP Class VI and ISO 10993. It can safely contact blood and tissues with a low risk of causing thrombosis.

6. High-Temperature and Sterilization Resistance

• PI is one of the most heat-resistant high-performance polymers. It can withstand various sterilization methods, such as autoclaving (steam) and ethylene oxide (EtO), while maintaining stable performance.

Medical Applications

• Interventional / Microcatheters: Used in neurointerventional and cardiovascular interventional procedures to deliver coils, stents, and drugs.

• Guide Catheters: Provide a stable channel and support for other interventional devices.

• Angiographic Catheters: Used to inject contrast agents into specific blood vessels.

• Radiofrequency Ablation Catheters: Used for cardiac electrophysiology studies and treatments.

• Other Precision Delivery Systems: Employed in various medical scenarios that require high strength, small dimensions, and precise pushability.