Irregular Needle Knife, Shaped Needle Knife

Q: 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: 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: 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.

Irregular Needle Knife Product Introduction:
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

Technical Specifications

Parameter	Value / Description
Product Name	Irregular Needle Knife / Shaped Needle Knife
Material – Blade	Medical-grade stainless steel SUS304 (ISO 9626 compliant)
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	EO (Ethylene Oxide) sterilized or Gamma sterilized
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 (Shaped Needle Knife): Biomechanically Optimized for Advanced Microsurgical Release

Shaped 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 of Irregular Needle Knife

Ultra-Precise Cutting Biomechanics
Computationally optimized blade angles (patent-pending) reduce tissue resistance by 60% vs. standard knives.
Nano-scale mirror edges (Ra ≤0.05μm) maintain sharpness through 50+ procedures.

Dynamic Contouring Capability
Mid-blade reduction zone enables in-procedure bending (0°-90°) without fracture risk.
Tactile feedback enhancement detects tissue density transitions.

Procedural Safety
Pagoda/knurled tails provide positive grip in bloody/fluidy fields.
Gradual taper transition minimizes collateral damage (validated necrosis zone <200μm).

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)

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?

Our application engineering team is ready to provide expert support at every step.

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.

GET A FREE CONSULTATION