ISO9626 SUS304 / 316L Stainless Steel Welded Capillary Tube For Medical Device Accessories

The ISO9626 SUS304/SUS316L stainless steel welded capillary tube is a high-precision thin-wall tubular product manufactured via precision welding and cold drawing process, exclusively customized for medical device accessory production. It features ultra-small outer diameter, ultra-thin wall thickness, strict dimensional consistency, excellent biocompatibility and sterilization resistance, and is the core raw material for manufacturing medical needle tubes, catheters, minimally invasive surgical accessories and precision medical fluid delivery components. Different from industrial ordinary capillary tubes, this medical-grade welded capillary tube fully complies with ISO9626 mandatory indicators, undergoes strict impurity control and surface purification treatment, contains no harmful precipitation substances, and adapts to high-frequency medical disinfection and human body contact scenarios, meeting medical safety and long-term stability requirements.

• SUS304 material is suitable for low-corrosion, short-term human contact medical devices. It is the preferred material for ordinary medical needle tubes, common infusion accessories and routine diagnostic instrument pipelines.
• SUS316L material is suitable for long-term implantation in human body, invasive minimally invasive surgery equipment and high-precision medical accessories with strict corrosion resistance requirements, and is recognized as the most reliable medical stainless steel capillary material in the industry.

Key Features of ISO9626 Medical-Grade 304/316L Capillary Tubes:

• Ultra-High Dimensional Precision
• Superior Corrosion Resistance & Durability
• Good Processability
• Excellent Biocompatibility & Safety

Wide Applications of Medical-Grade Stainless Steel Capillary Tubes:

1. Medical Needle Series Accessories

It is the core raw material for manufacturing various medical needle tubes, including hypodermic injection needles, infusion needles, blood collection needles, insulin needles, acupuncture needles and veterinary medical needles. Ultra-fine capillary tubes meet the production requirements of minimally invasive fine needles, reducing patient puncture discomfort.

2. Medical Catheter & Fluid Delivery Components

Used for precision medical catheters, micro-infusion pipelines, laboratory analytical instrument fluid delivery tubes, medical gas delivery capillary tubes, etc. The uniform inner diameter ensures stable liquid and gas flow, improving the accuracy of medical diagnosis and treatment.

3. Minimally Invasive Surgical Device Accessories

SUS316L high-grade capillary tubes are widely used in minimally invasive surgical instruments, endoscopic accessory tubes, biopsy needle tubes, surgical probe tubes and implantable medical device auxiliary pipelines. Its excellent corrosion resistance and biocompatibility ensure the safety of invasive surgery and long-term implantation.

4. Medical Diagnostic & Testing Instrument Parts

Applied to precision pipelines of blood analyzers, biochemical detectors, medical monitoring instruments and laboratory precision testing equipment, ensuring accurate transmission of micro-samples and stable instrument operation.