Medical Industry

Medical Industry Stainless Steel Capillary Tubes | Precision Tubing for Critical Applications | ISO 9001 Quality Management

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    Capillary Tube OEM Manufacturing for Needle Components

    2025-08-12

    Surgical Needle Manufacturing: Precision & Reliability Surgical needles are among the most critical components in medical applications. A single needle must meet exacting standards for sharpness, dimensional accuracy, material strength, and surface quality. As an experienced surgical needle OEM manufacturer, we produce stainless steel hypodermic needles, biopsy needles, and specialty surgical needles for global medical device companies. Types of Surgical Needles We Manufacture Hypodermic Needles Gauge OD (mm) ID (mm) Common Applications 25G 0.508 0.260 Intramuscular injection, blood sampling 27G 0.406 0.216 Subcutaneous injection, insulin delivery 30G 0.305 0.152 Insulin pen needles, pediatric use 32G 0.234 0.102 CGM sensors, micro-fluidic applications Biopsy Needles Core Biopsy Needles: OD 1.0-2.0mm, wall 0.1-0.2mm, for tissue sampling Fine Needle Aspiration (FNA): OD 0.5-0.8mm, ultra-sharp bevel for cellular sampling Automotive/Biopsy Cutting Needles: 420J2 stainless steel, hardened to 50-55 HRC Specialty Surgical Needles Laparoscopic Access Needles: Veress needles for insufflation Acupuncture Needles: OD 0.16-0.35mm, precision sharp tips Dental Needles: Endodontic files, periodontal probes Veterinary Needles: Large bore, high-wall thickness for animal applications Material Selection Grade Standard Hardness Applications 304 ASTM A269 ≤92 HRB General needles, non-sterile instruments 316L ASTM A269 ≤95 HRB Implantable, biocompatible needles 316LVM ASTM F138 / ISO 5832-1 ≤95 HRB Surgical implants, orthopedic devices 420J2 ASTM A276 50-55 HRC Surgical blades, cutting needles, scissors Manufacturing Process for Surgical Needles Tube Selection — Certified stainless steel capillary tube with EN 10204 3.1 Precision Cutting — Laser or rotary cutting to exact length Bevel Grinding — Multi-angle bevel (15°-30°) for sharp penetration Tip Forming — Trocar tip, cutting tip, or blunt tip per application Electropolishing — Ultra-smooth surface (Ra ≤0.2μm) for easy tissue penetration Passivation — Nitric or citric acid passivation for corrosion resistance Cleaning & Packaging — Ultrasonic cleaning, cleanroom packaging, sterile or non-sterile 100% Inspection — Dimensional, sharpness, visual, leak testing Quality Control…

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    Custom Capillary Tube Manufacturing for Needle Assembly Components

    2025-08-15

    Custom Surgical Needle Manufacturing: Precision & Performance Surgical needles are among the most demanding medical applications to manufacture. A single needle must combine ultra-sharp penetration, dimensional precision, material strength, and surface smoothness. As a custom surgical needle OEM manufacturer, we produce hypodermic needles, biopsy needles, acupuncture needles, and specialty surgical needles for global medical device companies. Needle Types We Manufacture Hypodermic Needles Gauge OD (mm) ID (mm) Length Range Applications 18G 1.270 0.838 25-90mm Blood donation, large volume injection 20G 0.908 0.603 25-75mm IV access, blood transfusion 22G 0.711 0.406 25-50mm Subcutaneous, intramuscular injection 25G 0.508 0.260 13-38mm Subcutaneous, insulin delivery 27G 0.406 0.216 13-25mm Pediatric, cosmetic injection 30G 0.305 0.152 8-13mm Insulin pen, CGM sensors 32G 0.234 0.102 4-8mm Micro-fluidic, micro-sampling Biopsy Needles Type OD (mm) Wall (mm) Tip Type Applications Core Biopsy 1.0-2.0 0.1-0.2 Cutting, Franseen Tissue sampling, organ biopsy FNA (Fine Needle) 0.5-0.8 0.05-0.1 Sharp, pencil point Cellular sampling, cytology Automotive Biopsy 1.2-2.0 0.15-0.25 Cutting, spring-loaded Prostate, breast biopsy Acupuncture Needles Gauge OD (mm) Length Range Applications 28G 0.32 15-75mm Standard acupuncture 30G 0.25 10-50mm Pediatric, cosmetic acupuncture 32G 0.20 10-40mm Micro-acupuncture, facial Needle Tip Configurations Tip Type Bevel Angle Applications Characteristics Hypodermic (Bevel) 15°-25° Injection, blood sampling Sharp penetration, smooth tissue passage Trocar 30°-45° Access needles, Veress needles Stiff, tissue-displacing, non-cutting Cutting (Reverse Bevel) 15°-20° Biopsy, tissue sampling Aggressive cutting, tissue core retention Pencil Point Conical FNA, spinal needles Smooth penetration, minimal tissue damage Blunt Flat Fluid transfer, non-penetration Safety, no sharp point Manufacturing Process Tube Selection — Certified 304/316L/420J2 capillary tube with EN 10204 3.1 Precision Cutting — Laser or rotary cutting to exact length (±0.1mm) Bevel Grinding — Multi-angle bevel (15°-30°) with precision grinding wheels Tip Forming — Trocar, cutting, pencil point, or blunt tip per specification Electropolishing — Ultra-smooth surface (Ra ≤0.2μm) for…

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    316LVM Stainless Steel – High Grade for Precision Capillary Tube Applications

    2025-08-15

    What Is 316LVM Stainless Steel? 316LVM (Low Vacuum Melting) stainless steel is the gold standard material for surgical implants and critical medical applications. Manufactured under vacuum to reduce inclusions and improve fatigue resistance, 316LVM meets the stringent requirements of ISO 5832-1 and ASTM F138 standards for implantable medical applications. As a precision grade 316LVM stainless steel OEM manufacturer, we produce capillary tubes, surgical needles, shaver blades, and implantable components with full material traceability and EN 10204 3.1 certification. Chemical Composition (ISO 5832-1) Element Specification (%) Typical Value (%) Carbon (C) ≤0.03 0.02 Silicon (Si) ≤0.75 0.45 Manganese (Mn) ≤2.0 1.20 Phosphorus (P) ≤0.025 0.018 Sulfur (S) ≤0.010 0.003 Chromium (Cr) 16.5-18.0 17.2 Molybdenum (Mo) 2.0-2.5 2.2 Nickel (Ni) 12.0-14.0 13.0 Nitrogen (N) ≤0.10 0.05 Mechanical Properties Property Requirement Typical Value Tensile Strength ≥485 MPa 550-620 MPa Yield Strength (0.2% offset) ≥170 MPa 250-300 MPa Elongation ≥30% 35-45% Hardness ≤190 HB (≤95 HRB) 150-170 HB Density — 8.0 g/cm³ Melting Point — 1371-1400°C Why 316LVM for Implants? 1. Superior Corrosion Resistance The molybdenum addition (2.0-2.5%) provides exceptional resistance to chloride-induced pitting and crevice corrosion in body fluids. The low carbon content (≤0.03%) prevents carbide precipitation during welding, ensuring corrosion resistance in the heat-affected zone. 2. Biocompatibility 316LVM passes ISO 10993 biocompatibility testing: Cytotoxicity: Non-cytotoxic Sensitization: Non-sensitizing Irritation: Non-irritating Acute systemic toxicity: Non-toxic Implantation: Well-tolerated in vivo 3. Fatigue Resistance Vacuum melting reduces non-metallic inclusions, significantly improving fatigue resistance — critical for implantable devices subjected to cyclic loading (e.g., pacemaker leads, orthopedic implants). 4. Weldability Low carbon content enables welding without post-weld annealing, maintaining corrosion resistance and mechanical properties in welded assemblies. Applications in Medical Applications Application Product Type Form Pacemaker leads Sensing electrodes, conductor tubes Capillary tube OD 0.3-1.5mm Stent delivery systems Catheter components, guidewires Micro-tube, wire Orthopedic implants Screw components,…

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    Stainless Steel Medical Application OEM – Contract Manufacturing for Surgical Instruments

    2025-08-14

    Medical Application Contract Manufacturing: Your Trusted OEM Partner Stainless steel medical device OEM (Original Equipment Manufacturer) and contract manufacturing services enable medical device companies to bring innovative products to market faster, with lower capital investment, and with guaranteed quality. As an experienced stainless steel medical device OEM manufacturer, we provide end-to-end manufacturing solutions from design support to finished, packaged devices. Our Manufacturing Capabilities Core Processes Process Capabilities Applications CNC Machining Turning, milling, drilling, ±0.01mm tolerance Surgical instruments, implants, device housings Cold Drawing Capillary tubes OD 0.1-6.0mm, wall 0.025-0.5mm Needles, catheter components, sensing tubes Laser Cutting Micro-precision cutting, burr-free, ±0.05mm Stents, shaver blades, micro-fluidic channels Grinding & Polishing Bevel grinding, electropolishing, Ra ≤0.2μm Needle tips, cutting edges, surgical blades Heat Treatment Hardening, annealing, stress relief 420J2/440C blades, springs, structural components Laser Welding Micro-welding, TIG welding, precision assembly Needle hubs, sensor assemblies, device integration Surface Treatment Electropolishing, passivation, DLC/TiN coating Corrosion resistance, lubricity, wear resistance Materials We Process Grade Standard Key Properties 304 ASTM A269 General purpose, cost-effective, good corrosion resistance 316L ASTM A269 Superior corrosion resistance, low carbon, weldable 316LVM ASTM F138 / ISO 5832-1 Biocompatible, fatigue resistant, implant grade 420J2 ASTM A276 High hardness (50-55 HRC), wear resistant 440C ASTM A276 Ultra-high hardness (58-62 HRC), premium cutting 17-4PH ASTM A564 Precipitation hardening, high strength, corrosion resistant Product Categories Surgical Instruments Laparoscopic instruments (graspers, dissectors, scissors, clip appliers) Orthopedic instruments (drill guides, reamers, saw blades) Neurosurgical instruments (probes, retractors, needle holders) Dental instruments (scalers, probes, forceps) Needles & Cannulae Hypodermic needles (25G-32G) Biopsy needles (core, FNA) Acupuncture needles Cannulae and catheter components Shaver Blades & Rotating Instruments Arthroscopic shaver blades (2.0mm-5.0mm) Neurosurgical shaver blades ENT shaver blades Dental burs and drills Implantable Components Pacemaker lead components Stent delivery system components Orthopedic fixation components Spinal instrumentation components Quality & Compliance Standard Description…

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    Custom Stainless Steel Capillary Tube for Precision Blade Manufacturing

    2025-08-13

    Surgical Shaver Blades: Precision Cutting for Minimally Invasive Surgery Surgical shaver blades are critical components in arthroscopic and minimally invasive surgical systems. These rotating blades cut and remove soft tissue, bone, and cartilage with precision, while the hollow design allows simultaneous irrigation and aspiration. As a medical shaver blade OEM manufacturer, we produce high-quality stainless steel shaver blades for orthopedic, neurosurgical, and ENT applications. Types of Surgical Shaver Blades Orthopedic Shaver Blades Size OD (mm) Cutting Window Applications 3.0mm 3.0 180° / 270° / 360° Knee arthroscopy, meniscus resection 4.0mm 4.0 180° / 270° / 360° Shoulder arthroscopy, debridement 4.5mm 4.5 180° / 270° / 360° Spine surgery, disc removal 5.0mm 5.0 180° / 270° / 360° Large joint surgery, bone resection Neurosurgical Shaver Blades Size: 2.0mm – 3.0mm OD Cutting Window: 360° full circumferential Applications: Spine surgery, disc removal, tumor resection ENT (Ear, Nose, Throat) Shaver Blades Size: 2.0mm – 4.0mm OD Cutting Window: 180° / 270° / 360° Applications: Sinus surgery, turbinectomy, adenoidectomy Material & Manufacturing Material Selection Grade Hardness Properties Best For 420J2 50-55 HRC High hardness, wear resistance, sharp edge retention Cutting blades, shaver blades 440C 58-62 HRC Ultra-high hardness, exceptional wear resistance Premium blades, long-life cutting 316L ≤95 HRB Biocompatible, corrosion resistant Blade housing, non-cutting components Manufacturing Process Material Preparation — Stainless steel rod/tube with certified composition CNC Machining — Precision milling of cutting window, helical grooves, and tip geometry Heat Treatment — Hardening to 50-62 HRC depending on grade Grinding & Polishing — Cutting edge sharpening, surface polishing to Ra ≤0.2μm Electropolishing — Enhanced corrosion resistance, ultra-smooth surface Laser Marking — Size, type, lot number, UDI marking Cleaning & Packaging — Ultrasonic cleaning, cleanroom packaging, sterile or non-sterile 100% Inspection — Dimensional, cutting edge, surface quality, hardness verification Key Performance Requirements Parameter Requirement Test…

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    Precision Stainless Steel Capillary Tubes – OEM Manufacturing for Medical Components

    2025-08-11

    What Are Precision Grade Stainless Steel Capillary Tubes? Medical grade stainless steel capillary tubes are ultra-precision hollow tubes manufactured to the strictest dimensional tolerances and surface quality standards. Made from 316LVM, 304, 420J2, and other certified stainless steel grades, these tubes serve as critical components in surgical instruments, diagnostic devices, drug delivery systems, and implantable medical applications. As a leading precision grade stainless steel capillary tube OEM manufacturer, we provide custom-dimension tubes with full material traceability, EN 10204 3.1 certification, and compliance with ISO 9001 and ASTM F138 standards. Materials We Work With Grade UNS Key Properties Medical Applications 316LVM S31603 Low vacuum melting, biocompatible, fatigue resistant Implants, surgical needles, orthopedic devices 316L S31603 Superior corrosion resistance, low carbon Diagnostic equipment, drug delivery, catheter components 304 S30400 General purpose, cost-effective Non-implantable instruments, equipment tubing 420J2 S42040 High hardness (50-55 HRC), wear resistant Surgical blades, scissors, biopsy needles 430 S43000 Magnetic, formable Magnetic sensor components, special instruments Dimensional Capabilities Specification Range Tolerance Outside Diameter (OD) 0.1mm – 6.0mm ±0.005mm to ±0.02mm Wall Thickness 0.025mm – 0.5mm ±0.005mm to ±0.025mm Roundness — ≤0.01mm Straightness — ≤0.5mm per meter Surface Roughness (Ra) — ≤0.4μm (bright annealed), ≤0.2μm (electropolished) Length Up to 30m coil or straight cut ±0.1mm to ±1.0mm OEM Manufacturing Process Material Selection & Certification — Certified 316LVM/304/420J2 rod with EN 10204 3.1 documentation Piercing — Rotary piercing or cold extrusion to create hollow mother tube Cold Drawing (5-15 passes) — Progressive diameter reduction with intermediate bright annealing Bright Annealing — Controlled atmosphere (N₂/H₂) at 1040-1120°C for stress relief and surface quality Surface Treatment — Electropolishing, passivation, or coating per customer specification Precision Cutting — Laser cutting for burr-free, precision-length tubes Forming & Fabrication — Bending, flaring, swaging, laser welding for assemblies 100% Inspection — Laser micrometer OD measurement, eddy current flaw…

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