ISO9626 SUS304 Stainless Steel Capillary tubes For Medical Puncture Needles

Medical Capillary Tubes are ultra-precision, small-diameter stainless steel tubes manufactured to the highest standards for use in various medical devices, such as injection needles, infusion needles, puncture needles, surgical instruments, IV catheters, etc.. These capillary tubes are mostly made by medical grade stainless steel 304 material because of its excellent corrosion resistance, formability, and biocompatibility. All medical stainless steel capillary tubes are complied with ISO9626: 2016 international standard, which defines the strict requirements for material, dimensions, tolerances, mechanical properties, and surface finish necessary for patient safety and device performance. Our factory specializes in medical capillary tubes from 10 Gauge to 34 Gauge sizes(0.18-3.4mm). And we can cut into fixed length according to the customer’s request. And we have certified with ISO13485 certification.

Key Features & Advantages:

• Medical-Grade Biocompatibility: SUS304 is proven safe for human tissue contact, causing no adverse reactions.
• Superior Corrosion Resistance: Resists bodily fluids, saline, and sterilization processes.
• High Precision And Consistency: Tight tolerances ensure reliable, high-speed automated assembly into needle hubs and devices.
• Excellent Surface Finish: The BA finish is clean, smooth, and free of scale, reducing friction during puncture and facilitating easy fluid flow.
• Optimal Mechanical Properties: Combines high tensile strength with good ductility, allowing for precise bevel grinding, kink resistance, and structural integrity.

Different Applications of Capillary Tubes:

A. Primary Medical Applications:

• Hypodermic Needles: For injections, vaccinations, and blood collection.
• Biopsy Needles: Core biopsy, fine needle aspiration (FNA).
• Catheter Introducer Needles: For placing guidewires and sheaths.
• Dialysis Needles & Spinal/Epidural Needles.
• Guidewire Components and Micro-surgical Instrument Shafts.

B. Non-Medical Precision Applications:

• Chromatography & Analytical Instrumentation: As sample transfer lines, syringe needles, and probe components.
• Semiconductor Manufacturing: For high-purity gas and fluid delivery.
• Precision Pneumatics/Hydraulics: In control systems for miniature actuators and sensors.
• Watchmaking & Micro-Mechanics: As pivots, axles, and precision structural components.

Packaging & Handling:

To preserve the pristine surface finish, tubes are typically packaged in clean, sealed plastic bags or tubes, often in a controlled environment to prevent contamination, scratching, or corrosion during storage and transport.

Main Sizes Chart Of SUS304 Medical Capillary Tubes: