Subcutaneous Tunnel Needle: Precision Blunt Dissection for Safe Catheter Placement.
Subcutaneous Tunnel 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 Blunt-Tip Design
Radial-symmetry rounded tip prevents vessel/organ perforation during dissection.
A gradual variable-diameter transition eliminates abrupt step-downs, providing smooth tissue separation.
Enhanced Procedural Control
Medical-grade knurled/pagoda tail grips ensure slip-resistant handling (even with blood/fluid exposure).
Optimized shaft rigidity maintains curve integrity during tunneling.
Patient Comfort
Mirror-polished surface (Ra ≤0.1μm) reduces tissue drag by 60% versus standard needles.
Tapered OD progression minimizes tunnel tract trauma (validated VAS pain score ≤1.5/10).
Premium Material Construction
Core Shaft: Seamless SUS 304 stainless steel (ASTM F138 compliant).
Tip: Work-hardened blunt dome (0.8mm radius) with electropolished finish.
Tail Options:
Pagoda connector: Luer-Lock compatible.
Knurled grip: Diamond-pattern texturing (0.3mm depth).
Technical Specifications
| Parameter | Specification |
|---|---|
| Tip Design | Radial-symmetry blunt dome (non-coring) |
| OD Range | 1.2mm – 3.0mm (customizable) |
| Lengths | 20cm – 50cm (±0.5mm tolerance) |
| Curvature | Straight / 15° / 30° pre-angled options |
Critical Applications
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Tunneled hemodialysis catheter placement
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Implantable venous port fixation
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PICC line subcutaneous anchoring
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Neurostimulator lead routing
Quality & Compliance
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Sterile EO gamma processed │ ISO 13485 │ CE MDR Class I
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Passivated surface (per ASTM A967), Single-use blister packaging
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Customization: Radiopaque markers, Depth graduations
