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.

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.

PEEK tubing (polyether ether ketone tubing) is highly favored in laboratory analysis, medical device manufacturing, and aerospace engineering due to its exceptional performance. This high-performance polymer can withstand high temperatures up to 250°C (and even 260°C for short periods) and possesses excellent chemical stability and mechanical properties. However, due to the hardness and high toughness of PEEK material, achieving precise and smooth cuts presents a challenge for many engineers. Why is the Cutting Quality of PEEK Tubing Important? Whether used in high-performance liquid chromatography (HPLC), precision medical catheters, or military aerospace applications, the cutting quality of PEEK tubing directly impacts its effectiveness: Reduced dead volume: In analytical instruments, uneven cuts can lead to dead volume at the connection points, causing signal peak broadening or experimental errors. Ensured sealing: Vertical and smooth cuts ensure a tight seal between the tubing and connectors, preventing leaks under high-pressure conditions. Maintaining biocompatibility: Professional cutting methods prevent the generation of debris, ensuring the biocompatibility of PEEK tubing in medical applications (such as cardiovascular, spinal surgery, and endoscopy). Common PEEK Tubing Cutting Methods and Professional Equipment 1. Using a Dedicated Tube Cutter (Preferred for Laboratories) Dedicated tube cutters are usually equipped with a V-groove to securely hold the PEEK tubing, ensuring the blade cuts perpendicularly. Operating tips: Apply even pressure during cutting and avoid rotating the tube to prevent spiral patterns on the cut surface. 2. Automated Precision Extrusion and Cutting (Preferred for Industrial Applications) For large-scale production, more advanced facilities are required. LINSTANT has nearly 20,000 square meters of cleanroom space, fully compliant with GMP requirements. We are equipped with 8 dedicated PEEK extrusion production lines, capable of producing tubing with high strength, high fracture toughness, and dimensional stability. With 40 sets of welding and molding equipment, we can achieve precise length control and end-face treatment directly in the production process, ensuring that every inch of PEEK tubing meets stringent standards. 3. Laser Cutting Technology For extremely fine or complex-shaped medical catheters (such as urological catheters and electrosurgical forceps sheaths), laser cutting offers non-contact, ultra-high precision. About LINSTANT: Your High-Performance Tubing Partner When addressing the application challenges of PEEK tubing, choosing a supplier with strong production capabilities is crucial. LINSTANT not only focuses on the cutting process but also maintains strict control at the source of production: Strong Production Scale: We have 15 imported extrusion production lines (covering single-layer, double-layer, and triple-layer co-extrusion capabilities), and 2 injection molding production lines. Full-Chain Support: We have nearly 100 sets of weaving, spring, and coating equipment, enabling us to provide customized solutions for different application scenarios such as electrocoagulation forceps and orthopedic trauma care. Efficient Delivery: Our comprehensive equipment matrix ensures efficient fulfillment capabilities even for complex orders. Precautions During the Cutting Process When handling PEEK tubing, its material characteristics should be fully considered: Avoid using ordinary scissors: Ordinary scissors will compress the tube wall, causing deformation and oval-shaped cuts that severely affect fluid flow. Maintain cleanliness: As PEEK is often used in trauma care and orthopedic surgery, the cutting environment and tools should be kept clean to avoid cross-contamination. Pay attention to dimensional stability: Although PEEK has excellent dimensional stability, extra care is required when cutting extremely thin-walled tubes to prevent collapse. Correctly cutting PEEK tubing is the crucial first step in leveraging its high-temperature resistance, wear resistance, and flame-retardant properties. Whether you need precise cutting of a single tube or are looking for a large-scale customized production partner, LINSTANT can provide professional support that meets GMP standards. Avoid using ordinary scissors for cutting, as this will damage the roundness of the PEEK tube.

An angiography catheter is an important instrument widely used in medical imaging examinations, primarily for the diagnosis and interventional treatment of cardiovascular, cerebrovascular, and peripheral vascular diseases. With the development of modern medical technology, the application of angiography catheters in clinical practice is becoming increasingly widespread, providing doctors with precise vascular images to effectively guide disease diagnosis and treatment plans. Basic Concepts of Angiography Catheters An angiography catheter is a thin, flexible medical catheter that allows contrast agents to be injected into the body through a vascular access, enabling the observation of the structure and function of blood vessels using imaging equipment such as X-rays or CT scans. Common angiography procedures include coronary angiography, cerebral angiography, and renal artery angiography. With the increasing demands for medical device quality, OEM angiography catheters have become an important choice for medical device manufacturers. Since its establishment in 2014, LINSTANT has focused on the extrusion, coating, and post-processing technologies of medical polymer tubing, providing OEM angiography catheters with precise, safe, and diversified process development capabilities and stable production capacity. Clinical Applications of Angiography Catheters Cardiovascular Disease Diagnosis Angiography catheters are widely used in cardiovascular disease diagnosis, especially in coronary angiography. They can accurately visualize the location of coronary artery stenosis or occlusion, providing a basis for interventional treatment. Cerebrovascular Disease Examination Cerebrovascular angiography can use angiography catheters to assess cerebral aneurysms, vascular malformations, and thrombosis, helping doctors develop surgical or interventional plans. Peripheral and Renal Vascular Examination For peripheral artery disease or renal artery stenosis, angiography catheters can also provide direct imaging, assisting in vascular stent implantation or vasodilation treatment. Technical Advantages of Angiography Catheters High-Precision Imaging: Angiography catheters can precisely guide contrast agents into designated blood vessels, achieving high-definition imaging. Flexible Operation: The catheters are highly flexible, adapting to complex vascular pathways and reducing surgical trauma. High Clinical Safety: Under the operation of experienced physicians, the complication rate of angiography catheters is low. OEM Customization Advantages: Leveraging years of experience in medical polymer tubing processing, LINSTANT provides customized production solutions for OEM angiography catheters, ensuring product stability and high-quality standards. Angiography catheters, as essential tools in modern imaging and interventional therapy, play a vital role in the diagnosis and treatment of cardiovascular and cerebrovascular diseases due to their precision, flexibility, and safety. Since its establishment in 2014, LINSTANT has remained committed to its promise to medical device manufacturers, dedicated to providing OEM angiography catheters with comprehensive process development capabilities and reliable production assurance. With continuous technological advancements, the future application prospects of angiography catheters in minimally invasive surgery and precision medicine will be even broader.