In the development of minimally invasive medical devices, the choice of liner material directly determines the success of the procedure. PI tubing (polyimide tubing) and PTFE tubing have always been core components of high-performance catheters. Key conclusion: If extremely thin wall thickness, excellent torque transmission, and kink resistance are required, medical-grade PI tubing is the best choice; if ultimate lubricity is needed, PTFE offers advantages. As a professional manufacturer deeply rooted in the field of interventional medical consumables, our business scope covers the entire range of medical-grade PI tubing solutions, from basic materials to complex structures, dedicated to solving material challenges for medical device engineers worldwide. In-depth Comparison of Key Performance Characteristics of Medical-Grade PI and PTFE Tubing Before deciding which material to choose, we recommend a thorough evaluation of PI and PTFE tubing based on the following four core dimensions: Wall Thickness Limit and Space Efficiency This is the core strength of medical-grade PI tubing. It can achieve extremely thin wall thicknesses (as low as 0.0005 inches) while maintaining extremely high strength. Compared to the susceptibility of PTFE to deformation at thin wall thicknesses, PI tubing significantly optimizes the inner diameter (ID) space of the catheter. We provide extruded single-layer/multi-layer tubing, which can be precisely customized according to requirements, helping devices achieve miniaturization. Mechanical Strength and Structural Support PI tubing has extremely high tensile strength. For catheters that need to navigate tortuous blood vessels, our spiral/braided reinforcement sheath technology maximizes the physical properties of medical-grade PI tubing, ensuring excellent torque response. Coefficient of Friction and Surface Treatment Although PTFE has better inherent lubricity, we can effectively improve the smoothness of PI tubing through various surface treatment solutions, making it possess both strength and passability, meeting the clinical needs of various single-lumen/multi-lumen tubing. Stability under Complex Conditions In high-temperature or high-pressure environments, special engineering materials such as PEEK/PI tubing exhibit superior dimensional stability compared to PTFE, especially in the manufacturing process of single-layer/double-layer/triple-layer balloon catheters, providing more reliable support. Why Choose Our Medical-Grade PI Tubing Solutions? We understand the stringent material requirements for medical devices, and therefore have built a diversified product portfolio to provide customers with a one-stop procurement experience: Precision Extrusion Process: Covering single-layer/multi-layer tubing extrusion, ensuring dimensional tolerances are controlled within extremely tight ranges. Complex Structure Customization: Providing everything from simple single-lumen/multi-lumen tubing to complex spiral/braided reinforced sheaths, enhancing the pressure resistance and flexibility of catheters. Balloon Technology Support: For dilation devices, we offer high-performance single-layer/double-layer/triple-layer balloon tubing. Cutting-edge Material Coverage: In addition to our core medical-grade PI tubing, we also offer high-end engineering plastics such as PEEK tubing, meeting the needs of different interventional scenarios. Selection Recommendations and Expert Consultation Choose PTFE tubing: Suitable for projects requiring extreme inner lumen lubricity and where space constraints are relatively loose. Choose Medical-grade PI tubing: Suitable for cutting-edge devices in neurointerventional and cardiovascular interventions requiring ultra-thin walls, high strength, and precise control. As a professional manufacturer of PI tubing and interventional components, we not only provide high-quality products but also offer comprehensive surface treatment solutions. Regardless of the stage of your R&D project, we can provide support from small-batch prototyping to large-scale production.

Flaring or tipping medical PEEK Tubing is primarily achieved through precision thermal processing. Due to PEEK's (polyether ether ketone) extremely high melting point (approximately 343°C), traditional cold working methods cannot permanently deform it. The typical process involves placing the catheter end in a precisely temperature-controlled induction heating coil. Once the material reaches its softening point, a precision mandrel or mold is used to physically extrude and shape it. As a professional medical device component partner, LINSTANT, with its advanced production facilities, ensures that every medical PEEK Tubing catheter maintains excellent biocompatibility and mechanical strength after shaping. Why are the forming processes for medical PEEK Tubing so demanding? In the medical device manufacturing field, medical PEEK Tubing are known for their excellent strength-to-weight ratio and chemical inertness. However, achieving perfect secondary processing (such as flaring or welding) requires stringent requirements on the original extrusion quality of the tubing. LINSTANT has nearly 20,000 square meters of cleanroom space, fully compliant with GMP requirements. We understand that even the slightest dust particle or impurity can lead to cracks during the thermoforming process. Through eight dedicated PEEK extrusion production lines, we can provide global customers with dimensionally stable, highly pure, high-performance tubing, addressing the pain points of carbonization and brittleness during the forming process. Core Technical Steps in Medical PEEK Catheter Forming In the design of cardiovascular intervention or endoscopic instruments, the following fine processing of medical PEEK Tubing is usually required: 1. Mold Forming (Tipping & Flaring) Flaring: Expanding the end of the tubing for connection with Luer connectors. Tipping: Shaping the end of the tubing into a rounded bullet shape to reduce trauma when entering the human body. 2. Integrated Reinforcement Technology For complex medical device designs, LINSTANT's 40 sets of welding and molding equipment and nearly 100 sets of weaving/spring equipment can be used in conjunction with PEEK tubing. We can combine PEEK/PI tubing with spiral or braided reinforcement sheaths, achieving a perfect multi-material transition through welding technology. LINSTANT: Your One-Stop Medical Tubing Manufacturing Expert Choosing the right medical PEEK Tubing catheter manufacturer is not just about purchasing raw materials, but also about choosing a guarantee of efficient order fulfillment. LINSTANT's business scope includes: Precision Extrusion: With 15 imported extrusion production lines, covering single-layer, double-layer, and triple-layer co-extrusion capabilities, we can produce single-lumen or multi-lumen tubing. Diversified Materials: In addition to special engineering materials such as PEEK/PI tubing, we also provide single-layer/multi-layer balloon tubing and surface treatment solutions. Integrated Manufacturing: Combining 2 injection molding production lines, we provide customers with integrated support from tubing extrusion to injection molded accessories. Mastering the flaring and molding technology of medical PEEK Tubing is key to improving the performance of interventional devices. Leveraging LINSTANT's strong production scale and precision processing equipment, we can provide you with comprehensive support from high-performance tubing customization to post-processing welding and molding.

In interventional procedures, guiding catheters are vital "lifelines" connecting the external system to the lesion site. To achieve precise positioning and support in complex vascular pathways, high-quality guiding catheters commonly employ a sophisticated braiding process. As a leader in this field, LINSTANT leverages its deep manufacturing expertise to provide high-performance catheter solutions to customers worldwide. Why do guiding catheters need a braided wire structure? A guiding catheter is more than just a plastic tube; its internal structure determines the success of the procedure. The braided layer, typically located in the middle of the catheter wall, provides the catheter with the following core properties: Superior flexural strength and stability: The braided structure ensures the catheter is less prone to flexing in tortuous blood vessels, maintaining lumen patency. Higher torque control: When the surgeon rotates the catheter externally, the braided layer transmits force 1:1 to the distal end. Maneuverability and maneuverability: The braided layer provides the necessary longitudinal strength, making the catheter more maneuverable in complex interventional pathways. Features of High-Quality Guiding Catheters Whether standard models or customized OEM guiding catheters, a high-performance catheter needs to meet multiple clinical requirements for flexibility, support, and patency. LINSTANT guiding catheters possess the following core technological advantages: Multi-Level Hardness Design: A multi-level design with varying hardness levels enhances the catheter's flexibility. Tip Softening: A soft tip reduces damage to blood vessels and tissues. Optimized Braided Structure: A precise braided structure provides higher torque, stability, and maneuverability. Ultra-Thin Wall, Large Lumen: Ultra-thin walls combined with a large internal cavity facilitate the passage of complex instruments. Low-Friction PTFE Inner Layer: A low-friction PTFE inner layer facilitates smooth delivery of guidewires or high-viscosity fluids. Shape Retention: Excellent shape retention provides reliable support for long-term operation. LINSTANT: Your Professional OEM Guiding Catheter Partner Choosing LINSTANT means choosing world-class manufacturing standards and delivery assurance. We possess a nearly 20,000-square-meter cleanroom, fully compliant with GMP requirements, ensuring that every catheter is manufactured under stringent conditions. To meet diverse OEM catheter needs, we are equipped with extremely robust hardware facilities: Extrusion Capacity: We have 15 imported extrusion production lines (with various screw sizes, capable of single-layer, double-layer, and triple-layer co-extrusion) and 8 PEEK extrusion production lines. Core Processes: Nearly 100 sets of weaving/springing/coating equipment; these cutting-edge devices endow our catheters with superior wire braiding performance and surface lubrication. Comprehensive Support: 2 injection molding production lines and 40 sets of welding and forming equipment, together ensuring our efficient order fulfillment capabilities and product integration. The wire braided layer is the "backbone" of the catheter. Through LINSTANT's advanced braiding technology and multi-level stiffness design, our catheters provide excellent support and delivery in minimally invasive interventional surgeries.

In the fields of precision medical devices and high-end industrial manufacturing, the upper limit of a material's temperature resistance often determines the product's safety baseline. PTFE Heat Shrink Tubing (polytetrafluoroethylene heat shrink tubing), with its exceptional physical properties, has become the industry's recognized first choice for insulation and protection. I. Core Parameters: Temperature Limit of PTFE Heat Shrink Tubing PTFE heat shrink tubing is renowned for its excellent thermal stability, making it the "temperature resistance champion" among heat shrink materials. Long-term operating temperature: It can operate stably in extreme environments ranging from -65°C to +260°C. Superior properties: Even at high temperatures of 260°C, it maintains excellent mechanical strength and electrical insulation properties. Safety barrier: As a high-temperature resistant insulation layer, it effectively prevents hazards such as melting and electric shock, performing exceptionally well in high-voltage or high-frequency current environments. II. LINSTANT's Professional Empowerment: From PTFE to Specialty Engineering Materials As a professional supplier deeply rooted in the field of precision tubing, LINSTANT's business scope extends beyond basic PTFE Heat Shrink Tubing. We are committed to providing comprehensive tubing solutions to global customers. Our product line covers highly technical areas: Precision Tubing Extrusion: Including extruded single/multi-layer tubing, single-lumen/multi-lumen tubing. Balloon Technology: Providing high-standard single/double/triple-layer balloon tubing. Reinforced Structure: Offering coil/braided reinforced sheaths for high-pressure applications. Top-Tier Engineering Materials: In addition to PTFE, we also excel in the research and development and production of tubing made from specialty engineering materials such as PEEK/PI. Surface Treatment: Matching various complex surface treatment solutions to meet diverse clinical applications. III. Typical Application Scenarios: Surgical Scalpel Tube Wrapping The application of PTFE Heat Shrink Tubing is highly representative in the medical surgical field. It is commonly used to wrap surgical scalpel tubing, an application that places extremely demanding requirements on the material. Insulation Protection: In electrosurgery, PTFE coatings or heat shrink tubing ensure that current acts only on the scalpel tip, preventing leakage at the scalpel shaft. Biocompatibility: LINSTANT's medical-grade PTFE materials meet stringent biocompatibility standards. Ultra-thin Wall Thickness: Combining LINSTANT's multi-layer tubing extrusion technology, we can achieve extremely thin and uniform wall thicknesses, providing the highest level of protection without increasing the volume of the scalpel shaft. IV. Construction Considerations: PTFE Heat Shrink Tubing Shrinkage Process Although PTFE can be used at temperatures up to 260°C, its shrinkage process requires even higher energy. PTFE's crystalline melting point is approximately 327°C; therefore, the processing of PTFE heat shrink tubing typically requires an industrial-grade high-temperature oven or a precisely temperature-controlled hot air gun. LINSTANT not only provides high-quality tubing but also leverages its extensive experience in surface treatment solutions to assist customers in optimizing processing techniques, ensuring that the shrunk tubing is flat, bubble-free, and does not shift. V. Why Choose LINSTANT? In the pursuit of ultimate performance, material selection is crucial. With its comprehensive supply chain capabilities, from single/multilayer extrusion to braided reinforced sheaths, LINSTANT can customize the most suitable PTFE solutions based on your specific application scenarios (such as temperature resistance, pressure, flexibility, etc.). Whether it's cutting-edge medical interventional catheters or demanding industrial high-temperature components, LINSTANT provides one-stop support from material selection to finished tubing.

In modern minimally invasive interventional medicine, Micro Catheter have become a core tool for doctors to access tiny blood vessels and cavities in the human body for precise treatment. Because their outer diameter is typically less than 1 mm, operating these high-precision medical devices requires extremely high professional skills and a deep understanding of the product.| I. Operating Procedures and Core Techniques for Micro Catheter Micro Catheter are designed to reach complex sites such as nerves and blood vessels. The following are the key steps in clinical use: Preparation and Flushing Before use, the lumen of the microcatheter must be thoroughly flushed with heparinized saline to remove air and activate the internal hydrophilic coating, reducing friction. Guidewire Attachment Micro Catheter are typically used in conjunction with microguidewires using a "coaxial technique." The microguidewire is inserted into the catheter, and the directional guidance of the guidewire tip helps the microcatheter pass smoothly through tortuous blood vessels. Pushing and Tracking Leveraging the catheter's superior flexibility and maneuverability, the doctor slowly pushes it to the target lesion area under the monitoring of X-ray fluorescence fluoroscopy. Precise Drug Delivery or Stent Placement Once the microcatheter reaches the designated location, it can be used to deliver embolic materials, chemotherapy drugs, or serve as a channel for stent delivery systems. II. Why Choose High-Quality Micro Catheter? In neurointerventional or peripheral vascular interventional procedures, the performance of Micro Catheter directly impacts the success rate. LINSTANT's Micro Catheter, with their excellent biocompatibility and breakage resistance, perfectly adapt to the complex anatomy of the human body, ensuring efficient and safe clinical procedures. III. About LINSTANT: Your Professional Partner As a leader in interventional medical device components, LINSTANT is committed to providing high-performance catheter solutions. Strong Production Capacity LINSTANT boasts a nearly 20,000 square meter cleanroom, fully compliant with GMP requirements. Cutting-Edge Hardware Facilities 15 Imported Extrusion Production Lines: Supporting single-layer, double-layer, and triple-layer co-extrusion to meet the needs of different wall thicknesses and strengths. 8 PEEK Extrusion Lines and 2 Injection Molding Lines. Over 100 sets of weaving/springing/coating equipment: endowing catheters with excellent compressive strength and delivery performance. 40 sets of welding and forming equipment: ensuring the precision of catheter tip processing. IV. Customization Advantages of OEM Micro Catheter For global medical device brands, finding a reliable OEM microcatheter service provider is key to enhancing market competitiveness. LINSTANT, with its advanced equipment resources and stringent quality control standards, not only provides standardized products but also offers deeply customized OEM microcatheter development services based on clinical needs, ensuring efficient order fulfillment and superior quality. Technological innovation in Micro Catheter is reshaping the future of minimally invasive surgery. Understanding their usage guidelines and selecting suppliers with strong R&D and manufacturing backgrounds are crucial cornerstones for driving advancements in medical technology.