Medical grade Stainless Steel Hypo Tube SUS304L, SUS316

Medical-grade stainless steel hypotubes and micro-tubing are fundamental structural components for minimally invasive catheter shafts, interventional delivery systems, and precision surgical instruments. Cold-drawn primarily from high-tensile 304, 304V, or 316L stainless steel, hypotubes provide the optimal balance between proximal pushability, kink resistance, and distal flexibility.

Key Technical Advantages of Medical Hypotubes

1:1 Torque Transmission & Pushability: Delivers high column strength and torsional rigidity, allowing clinicians to transmit axial force and rotation directly from the proximal handle to the distal tip without energy loss or buckling.

Laser-Cut Distal Flexibility: Engineered with spiral, pitch-variable, or puzzle-pattern laser cuts, allowing a rigid metallic shaft to smoothly transition into a highly flexible, trackable segment for navigating tortuous anatomy.

Ultra-Tight Tolerances: Manufactured via precision cold-drawing to maintain tight outer diameter (OD), inner diameter (ID), and wall thickness tolerances, ensuring consistent fluid flow rates and smooth passage of inner guidewires or tools.



Specifications & Custom Fabrication Capabilities

Materials: SUS304,　SUS316L, and SUS316L, etc.

Dimensional Range: Outer Diameters (OD) typically ranging from φ0.20 mm to φ3.00 mm with ultra-thin wall options down to 0.025 mm.

Secondary Micro-Processing:

Laser Cutting: Customized helical slots and pitch variations for tailored bend radii.

End Forming: Flaring, swaging (tapering), skiving (angle cuts), beveling, and micro-hole drilling.

Surface Treatment: Electropolishing, passivating,


Target Medical Applications
・PTCA & PTA Rapid-Exchange (Rx) Balloon Catheter Shafts
・Neurovascular & Cardiovascular Delivery Systems
・Structural Heart & TAVI/TAVR Delivery Shafts
・Electrophysiology (EP) & Ablation Catheters
・Endoscopic Precision Tools & Biopsy Cannulas