Subcutaneous Tunneling Needle
Subcutaneous Tunneling Needle
Precision-machined from solid medical-grade stainless steel rods, these subcutaneous tunneling needles are designed to create smooth subcutaneous tracts for guiding implantable catheters, drainage tubes, and leads. Fabricated on Japanese precision automated equipment to provide exceptional column stiffness and clean,burr-free surfaces.
SPECIFICATIONS
Technical Parameters
| Parameter | Specification |
|---|---|
| Product Name | Subcutaneous Tunneling Needle |
| Material – Cannula | Medical-grade SUS304 stainless steel |
| Tip Design | Radial-symmetry blunt dome (non-coring) for atraumatic passage |
| Outer Diameter (OD) | 1.2 mm – 3.0 mm (customizable per clinical application) |
| Length Options | 200 mm – 500 mm (±0.5 mm tolerance) |
| Curvature Options | Straight / 15° angled / 30° angled pre-formed |
| Surface Finish | Polished, low-friction, biocompatible coating available |
| Hub / Handle Options | Pagoda-type, knurled, or textured anti-slip designs |
| Transition Zone | Natural smooth taper between shaft and tip to minimize resistance |
| Sterilization Method | Ultraclean Washing & Degreasing |
| Packaging | Individually sterile blister pack, 10–20 units per box |
| Single-Use | Yes |
| Certifications | ISO 13485, CE, FDA (depending on region) |
| Shelf Life | 3–5 years under controlled storage conditions |
Subcutaneous Tunneling Needle: Precision Blunt Dissection for Safe Catheter Placement.
Subcutaneous Tunneling Needle Clinical Purpose
Engineered for creating controlled subcutaneous pathways in vascular access procedures, our tunnel needle enables the atraumatic placement of tunneled catheters (PICC, Hickman, and dialysis catheters) and implantable ports, while minimizing tissue damage and infection risks.
Key Advantages
Atraumatic Dome-Shaped Blunt Tip
Precision-formed dome blunt tip advances smoothly,
minimizing tearing or shearing trauma to surrounding subcutaneous vessels and tissue.
Ultraclean Washing & Degreasing
Multi-stage ultrasonic cleaning and WFI rinsing thoroughly strip away all processing greases and metallic micro-debris, satisfying biosafety standards.
Electropolished Low-Friction Shaft
Advanced surface electropolishing produces a mirror-smooth finish that significantly lowers subcutaneous tissue drag.
Custom Curvature & Stepped Geometry
Tailored shaft curvature radius, straightness, stepped transitions, and effective working lengths built to customer prints.
Versatile Proximal Hub Fittings
Supports custom barbed connectors, knurled anti-slip bands, threaded locks, and internal threads to ensure high catheter retention and pull-off force.
Quality Control (ISO 13485 QMS)
100% High-Speed Online Vision Inspection
Real-time sorting and auto-rejection for dome roundness, surface micro-scratches, burrs, and hub machining dimensions.
Micro-Cleanliness & Residue Monitoring
Strict lot-by-lot inspection for particulate contamination and degreasing residues.
Full-Dimension & Mechanical Testing
Rigorous verification of OD, bend curvature tolerances, column rigidity, and hub tensile pull-off resistance.
FEATURES
Customization Advantages
Precision engineering for complex medical applications
Geometry Expertise
J-hooks, helical coils, side ports, multi-lumen structures, or patient-specific bends. Micro-barb retention elements, fluid channels (≥50μm ID), or directional drug delivery windows.
Advanced Manufacturing
Laser micromachining precision ±5μm. Electroforming for seamless tapered transitions. Nitinol shape-memory integration for steerable functionality.
Rapid Prototyping
Surgical-grade steel / PEEK 3D-printed prototypes delivered within 72 hours. CFD and structural simulation reports to accelerate product validation.
Ready to Discuss Your Custom Requirements?
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FAQs
Q: What is inserted into a subcutaneous pocket?
A: Implantable devices such as subcutaneous ports provide long-term intravenous access in patients. These devices are placed subcutaneously and are connected to the central circulation by a catheter that is inserted either in the internal jugular or subclavian vein.
Q: What is a subcutaneous catheter?
A: An indwelling subcutaneous catheter is a small plastic tube that is put into this tissue, so medicine can be given several times with only one “poke.” It looks like an IV but goes under the skin instead of into the vein. After the catheter is put in, the needle inside it is removed.
Q: What should I avoid with a tunneled catheter?
A: Avoid arm and upper body movements that may pull on the catheter. These movements include heavy weight lifting and vigorous use of your arms. You will probably need to take 1 day off from work and will be able to return to normal activities shortly after.
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