Irregular Needle Knife
Irregular Needle Knife
High-quality medical SUS304; the angle of the blade is professionally calculated, and the blade has been precision-ground countless times, which is extremely sharp, with low cutting resistance and reduced pain. The middle part of the blade can be reduced, which is convenient for doctors to bend, which is more practical. The tail can be made of pagoda, knurling, and other anti-slip processes.
Product Specification:
Size: 10Fr-25Fr
SPECIFICATIONS
Technical Parameters
| Parameter | Value / Description |
|---|---|
| Product Name | Irregular Needle Knife |
| Material – Blade | Medical-grade stainless steel SUS304 |
| Material – Handle | Stainless steel/polypropylene with anti-slip texture (pagoda, knurling, etc.) |
| Blade Type | Precision-ground, irregular-shaped blade with optimized cutting angle |
| Blade Features | Ultra-sharp edge, low resistance, reduced pain, middle part bendable |
| Size Range | 10Fr – 25Fr (1 Fr = 0.33 mm diameter; size range ≈ 3.3 mm – 8.3 mm) |
| Connection / Grip | Anti-slip designs available (pagoda style, knurled, or customized) |
| Sterilization Method | Ultraclean Washing & Degreasing |
| Packaging | Individually sterile blister packs, 10–50 pcs per box |
| Single-Use | Yes |
| Certification | ISO 13485, CE marking, FDA compliance (regional) |
| Shelf Life | 3–5 years under recommended storage conditions |
Irregular Needle Knife: Biomechanically Optimized for Advanced Microsurgical Release
Irregular Needle Knife Clinical Purpose
Our geometrically engineered needle knife enables unparalleled precision in confined-space surgical procedures. Designed for selective tissue release in endoscopic, orthopedic, and neurosurgical interventions, its variable-profile blade delivers controlled dissection while preserving critical structures.
Key Advantages
Precision Micro-Edge Profiling
Supports non-standard geometric grinds (beveled micro-blades, stepped shoulders,micro-hooks) with smooth edges for ultra-low tissue incision resistance.
High Axial Rigidity & Straightness
Premium high-modulus stainless steel rods resist buckling and torque twist, ensuring smooth,snag-free extension through tortuous endoscopic channels.
Ultraclean Washing & Degreasing
Ultrasonic cleaning and WFI rinsing thoroughly strip away grinding oils and metallic dust.
Zero Burrs & Ultra-Narrow Tolerances
Precision-controlled OD and micro-honed edges ensure smooth integration with insulating sheaths and automated subassemblies.
Custom Stop Collars & Dimensions
Supports custom blade profiles, working lengths, end chamfers, and mechanical stroke-limiting steps.
Advanced Material Science
| Component | Specification |
|---|---|
| Blade Core | Medical SUS304 (HRC 58±1, ASTM F899) |
| Edge Treatment | Cryogenic hardening + diamond-like carbon coating |
| Handle | ERGAL™ aviation aluminum with textured grip |
Technical Specifications
| Parameter | Specification |
|---|---|
| Sizes | 10Fr (3.3mm) – 25Fr (8.3mm) |
| Blade Length | 3mm / 5mm / 10mm (±0.05mm) |
| Bend Radius | ≥1.5mm (30+ cycles) |
| Cutting Force | 0.15–0.8N (tissue-dependent) |
Quality Control (ISO 13485 QMS)
100% High-Speed Online Vision Inspection
Real-time contour verification of profile dimensions, burrs, hook defects, and edge angles with automatic defect sorting.
Micro-Cleanliness & Residue Monitoring
Strict lot-by-lot inspection for particulate contamination and degreasing residues.
Full-Dimension & Mechanical Testing
Tight control over OD, straightness, and batch cutting/puncture forces.
Critical Applications
-
Endoscopic submucosal dissection (ESD)
-
Spinal ligamentum flavum release
-
Peripheral nerve decompression
-
Arthroscopic adhesion lysis
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 a needle knife?
A: A needle knife is a specialized endoscopic accessory designed for precise incisions in the gastrointestinal tract. It is mainly used during ERCP when traditional access to the bile or pancreatic ducts is difficult. The fine electrosurgical tip allows safe and accurate entry into the ducts.
Q: What is needle knife therapy?
A: It is not only effective for chronic soft tissue injury diseases, but also for multi-disciplinary diseases such as internal, external, women, children, and facial features. The needle knife is a kind of micro-invasive treatment. It is micro-cutting deep into the soft tissue.
Q: What is the little sharp knife used in surgery?
A: A little sharp knife used in surgery is called a scalpel. It is a precision instrument with a very sharp, fine blade used for making incisions, cutting tissue, and performing dissections. Scalpel blades are often disposable and come in different shapes and sizes for specific surgical needs, such as the #10 for large cuts, the #11 for stab incisions, or the #15 for delicate cuts.
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