NINGBO LINSTANT POLYMER MATERIALS CO., LTD. NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • CUSTOMIZED FOR
    YOUR BUSINESS
    Tailored for a Wide Range of Applications
  • Research and Design
    With an in-depth understanding of the properties of polymer materials and the application requirements of medical catheters, we leverage our extensive experience in R&D and design to offer constructive material selection and design recommendations tailored to your needs.
    READ MORE
  • Rapid Prototyping
    Equipped with a comprehensive production process system and advanced processing equipment, we adhere to design specifications to swiftly manufacture prototypes. We maintain frequent and in-depth communication with you to ensure that the appearance quality, dimensional accuracy, and basic performance indicators of the prototypes meet your design expectations. Additionally, our rapid prototyping line enables fast sampling, saving you time and costs.
    READ MORE
  • Testing & Validation
    We collaborate with your validation processes and provide the samples and documentation required for clinical trials and other regulatory needs. We also offer professional guidance on product and regulatory matters.
    READ MORE
  • Certification Assistance
    We are certified to ISO 13485 quality management system. Our robust quality management system provides comprehensive support to ensure that all documentation complies with regulatory requirements, facilitating a smooth product certification process.
    READ MORE
  • Mass Production
    We have a mature production management system and strictly follow standardized processes to ensure timely, high-quality, and accurate delivery. In the event of quality issues, we immediately initiate a traceability mechanism to pinpoint the root cause and implement swift corrective actions, ensuring that every product entering the market meets stringent quality standards.
    READ MORE
NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Neurovascular
    -Micro Catheter
    -Aspiration Thrombectomy Catheter
    -Balloon Tubing
    -Guiding Catheter
    -Angiographic Catheter
    -Protection Tubing
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Ophthalmic System
    -Distal Catheter
    -Lacrimal Cannula
    -Drainage Tube
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Electrophysiology
    -Braid Reinforced Tubing
    -Coil Reinforced Tubing
    -Medical Polyimide Tubing
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Cardiovascular
    -Single/Double/TripleBalloon Tubing
    -Multi-lumen Tubing
    -Medical Multi-layer Tubing
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Structural Heart Disease
    -Micro Catheter
    -Aspiration Thrombectomy Catheter
    -Balloon Tubing
    -Guiding Catheter
    -Angiographic Catheter
    -Introducer Sheath
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Endoscope
    -Braid Reinforced Tubing
    -Coil Reinforced Tubing
    -Multi-lumen Tubing
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Urinary
    -Urinary Coil Tubing
    -Steerable Urinary Coil Sheath
    -Stone Retrieval Basket (PI)
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Minimally Invasive Surgery (MIS)
    -Balloon Tubing
    -Steerable Sheath
    -Disposable Sampling Tube
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Orthopedics
    -PEEK Tubing
    -Vertebrae Balloon Tubing
    -Compression Sleeve
    NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Peripheral Vascular
    -Braid Reinforced Tubing
    -Coil Reinforced Tubing
    -Introducer Sheath
INDUSTRIES WE SERVE
We understand challenges in various industries and provide solutions to meet your specific production needs.
READ MORE
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Head
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Chest
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Hip
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    Hip1
  • NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
    lower limbs
ABOUT LINSTANT
Ningbo Linstant Polymer Materials Co., Ltd. was a professional

OEM/ODM Medical Tubing Manufacturers and Medical Tubing Supplier

, established in 2014 and now employs over 400 employees. We specialize in the extrusion processing, coating, and post-processing technologies of medical polymer tubing. Our commitment to medical device manufacturers is reflected in our precision, safety, diverse processing capabilities, and consistent product quality.
READ MORE
  • 0
    Establishment time
  • 0+
    Employee
  • 0+
    Production line
NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
NINGBO LINSTANT POLYMER MATERIALS CO., LTD.
NEWS
  • Industry News
    Feb 06,2026
    How to Flare or Tip Medical PEEK Tubing?
    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.
  • Industry News
    Jan 30,2026
    Do guiding catheters have braided wire?
    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.
  • Industry News
    Jan 23,2026
    What is the temperature range of PTFE heat shrink tubing?
    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.
  • Industry News
    Jan 16,2026
    How to Use Micro Catheter?
    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.
  • Industry News
    Jan 09,2026
    What are the differences between medical PTFE tubing and medical PI tubing?
    In the design and manufacturing of minimally invasive medical devices, the choice of catheter material directly determines the product's performance and clinical safety. Medical PI tubing (polyimide tubing) and medical PTFE tubing (polytetrafluoroethylene tubing) are currently the two most widely used high-performance polymer materials in interventional medicine. Although both possess excellent biocompatibility, they differ significantly in mechanical properties, processing techniques, and specific applications. As a professional supplier of medical-grade tubing, LINSTANT is committed to providing high-performance material solutions for global medical device development. Our business scope covers a comprehensive product line from basic extrusion to complex reinforced structures, including extruded single/multilayer tubing of various sizes, single-lumen/lumen tubing, single/double/triple-layer balloon tubing, coil/braided reinforced sheaths, as well as specialty engineering materials PEEK/PI tubing and various surface treatment solutions. I. Comparison of Core Material Properties To understand the differences between the two, we must first start with their physical and chemical properties: 1. Medical PI Tube (Polyimide) Medical PI tubes are renowned for their extremely high strength and extremely thin wall thickness: High Strength and Hardness: PI material has extremely high tensile strength, providing excellent compressive strength and kink resistance. Extremely Thin Wall Thickness: It can be processed into micro-tubes with a wall thickness of only about 0.01mm, which is crucial for interventional procedures requiring passage through extremely fine blood vessels. High Temperature Resistance and Chemical Stability: It maintains structural stability under various sterilization environments. 2. Medical PTFE Tube (Polytetrafluoroethylene) PTFE is known worldwide for its "slippery" properties, being one of the solid materials with the lowest coefficient of friction: Extremely High Lubricity: The ultra-low friction of the inner surface of Medical PTFE Tube makes it an ideal choice for guide wires and liners in delivery systems. Excellent Flexibility: Compared to medical PI tubes, PTFE is more flexible and easier to bend. Non-stickiness: It adheres to virtually no substances, effectively preventing thrombosis. II. Main Differences Between Medical PTFE Tubes and Medical PI Tubes Physical Strength and Support: Medical PI tubes possess extremely high tensile strength and rigidity, exhibiting metal-like physical properties, providing excellent resistance to kinking and structural support. In contrast, Medical PTFE Tube products are softer and more flexible, but are prone to deformation under pressure. Wall Thickness and Dimensional Accuracy: In interventional medical devices requiring extremely miniaturization, medical PI tubes offer significant advantages. They can be processed into extremely thin tubes with a wall thickness of less than 0.02 mm while maintaining strength. Medical PTFE tubes, due to material limitations, typically have thicker walls, making it difficult to achieve the same level of strength in ultra-thin specifications. Surface Friction and Lubrication: Medical PTFE tubes possess the lowest known coefficient of friction among solid materials, exhibiting natural super-slippery properties, making them ideal as liners for delivery systems. While medical PI tubes have a smooth surface, their friction is relatively high, usually requiring the application of a hydrophilic coating to improve their slipperiness. Bonding and Composite Processing Capabilities: Medical PI tubing has good chemical polarity, making it easy to bond and composite with medical adhesives (such as UV adhesives) or thermoplastic elastomers (such as Pebax); Medical PTFE Tube tubing, on the other hand, has extremely strong non-adhesive properties and usually requires complex sodium curing treatment or LINSTANT's PTFE surface treatment before being composited with other materials. Visual Characteristics and Transparency: Medical PI tubing typically exhibits a characteristic amber, golden yellow, or dark brown color; while medical PTFE tubing usually appears as an opaque milky white or translucent waxy appearance. III. Differences in Clinical Application Scenarios Due to their different properties, these two types of medical catheters play different roles in interventional medical devices: Applications of Medical PI Tubing Due to its excellent electrical insulation properties and rigidity, it is often used as a reinforcing layer for electrophysiological catheters, microcatheters, and as a support cannula in cardiovascular interventional devices. When it is necessary to pass through narrowed lesions, the pushing force provided by medical PI tubing is unmatched by other materials. Applications of Medical PTFE Tubing Primarily used as a catheter liner. In multilayer composite catheters, PTFE, as the innermost layer, ensures smooth passage of guidewires or other instruments through the catheter lumen, reducing operational resistance. IV. How to Choose the Right Catheter Material for Your Needs? During the development process, the choice between medical PI tubing and PTFE tubing depends on your design goals: If your device requires an extremely small outer diameter and a very large inner diameter (i.e., thin-walled), while also demanding extremely strong support, medical PI tubing is the preferred choice. If the core requirement of your device is smooth delivery of internal instruments, then a PTFE liner is indispensable. Composite Solutions: Modern high-end microcatheters typically employ a "combination of inner and outer layers." LINSTANT can provide customized coil/braided reinforced sheaths, perfectly integrating PTFE liners with medical PI tubing or other reinforcing layers. LINSTANT consistently focuses on the cutting-edge needs of minimally invasive medicine, helping medical device manufacturers achieve more precise and safer clinical procedures by providing precision-engineered PEEK/PI tubing and multilayer/multi-lumen tubing.
READ MOER