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316L Stainless Steel Biopsy Needle with Laser-etched Depth Scale and Slotted Design for Precise Tissue Sampling

316L Stainless Steel Biopsy Needle with Laser-etched Depth Scale and Slotted Design for Precise Tissue Sampling

Brand Name: yue lin sen
Model Number: Y 6621
MOQ: 100 pcs
Price: 0.5-20
Payment Terms: T/T
Supply Ability: 5000000pcs
Detail Information
Place of Origin:
Guangdong
Certification:
ISO9001 ISO13485
Sizerange:
Custom Sizes Available, Typically 1mm To 300mm
Customization:
Fully Customizable To Client Specifications
Laser Cutting Tolerance:
± 0.10 Mm (± 0.004") Or Better
Material Capabilities:
Aluminum Product,copper Product
Surface Treatment:
Polishing
Tolerance:
±0.01 Mm
Leadtime:
2-6 Weeks Depending On Order Size
Shape:
Circle
Payment Term:
TT Westerm Union MomeyGram Paypal
Transport Package:
Plastic Box; Wooden Box
Biocompatibility:
Meets ASTM F136 Standards
Surfacefinish:
Ra 0.8 - 1.6 µm
Productname:
Medical Machining Parts
Inspection:
100% Quality Inspection With CMM
Technique:
Cold Drawn
Packaging Details:
Vacuum packaging cardboard box
Highlight:

316L Stainless Steel Biopsy Needle

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Laser-etched Depth Scale Puncture Needle

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Slotted Design Medical Needle

Product Description
316L Stainless Steel Capillary Slotted Scale Puncture Biopsy Needle
The 304/316L Stainless Steel Capillary Tubing Slotted, Graduated Biopsy Puncture Needle is a precision medical instrument designed for accurate tissue sampling and fluid aspiration procedures. Manufactured from medical-grade stainless steel, it features longitudinal slots near the tip for efficient tissue capture and clear laser-etched depth graduations for precise insertion control.
316L Stainless Steel Biopsy Needle with Laser-etched Depth Scale and Slotted Design for Precise Tissue Sampling 0 316L Stainless Steel Biopsy Needle with Laser-etched Depth Scale and Slotted Design for Precise Tissue Sampling 1 316L Stainless Steel Biopsy Needle with Laser-etched Depth Scale and Slotted Design for Precise Tissue Sampling 2 316L Stainless Steel Biopsy Needle with Laser-etched Depth Scale and Slotted Design for Precise Tissue Sampling 3
Manufacturing Process
  1. Material Preparation: Selection and cutting of certified 304 or 316L stainless steel capillary tubing to precise specifications
  2. Slot Machining: Precision micro-milling or laser cutting of longitudinal slots near the distal needle end
  3. Tip Formation: Grinding and polishing to create sharp, beveled, or specialized trocar tips for optimal tissue penetration
  4. Laser Graduation Marking: High-precision laser etching of depth markers in centimeter and millimeter increments
  5. Surface Finishing: Electropolishing and passivation for smooth, biocompatible, corrosion-resistant surfaces
  6. Hub Assembly: Attachment of Luer-Lock compatible hub with clear chamber for sample visualization
  7. Stylet Fabrication: Manufacturing matching solid stylets that fit flush with needle tip for insertion
  8. Cleaning & Sterilization: Ultrasonic cleaning, Ethylene Oxide or Gamma sterilization, and sterile barrier packaging
Clinical Applications
  • Fine-Needle Aspiration (FNA) Biopsy: Sampling of thyroid, lymph nodes, breast, salivary glands, and other masses
  • Core Needle Biopsy: Tissue core collection from liver, kidney, prostate, and lung using automated or manual biopsy guns
  • Therapeutic & Diagnostic Fluid Aspiration: Drainage of cysts, abscesses, and joint effusions (arthrocentesis)
  • Bone Marrow Biopsy & Aspiration: Specialized designs for iliac crest or sternal access procedures
  • Minimally Invasive Surgical Procedures: Precise tissue sampling during endoscopic or laparoscopic surgery
Technical Specifications
Parameter Category Specification Details & Options
Material Tubing Material 304 or 316L Stainless Steel (Medical Grade). 316L offers superior corrosion resistance for prolonged contact with bodily fluids.
Design Features Slot Configuration Single Slot or Multiple Slots near the tip. Slot length typically 10-20mm for tissue entry and fluid inflow.
Graduation Markings Laser-etched depth scale in centimeter (cm) and/or millimeter (mm) increments along the shaft.
Tip Design Chiba Style (Long Bevel): Common for FNA.
Trocar Point: For easier penetration of tougher tissues.
Franseen or Westcott: For improved core retention.
Dimensional Specifications Outer Diameter (Gauge) Fine Needle Aspiration (FNA): 20G (0.90mm), 21G (0.82mm), 22G (0.71mm), 25G (0.50mm).
Core Biopsy: 14G (2.11mm), 16G (1.65mm), 18G (1.27mm).
Length Common: 50 mm, 90 mm, 100 mm, 150 mm, 200 mm. Custom lengths available.
Slot Dimensions Length: 5-25 mm. Width: 0.3-1.0 mm (proportional to needle gauge).
Performance Flow/Aspiration Efficiency Slotted design improves sample yield by preventing tissue plugging and providing alternative inflow paths.
Surface Finish Internal & External Electropolished to smooth finish (Ra ≤ 0.4 µm) to minimize tissue drag and friction.
Hub & Connection Hub Type Clear or opaque hub with Standard Luer Lock (ISO 594) connection. May include side port for syringe attachment.
Sterility & Packaging Sterilization Ethylene Oxide (EtO) or Gamma Irradiation.
Quality & Standards Biocompatibility ISO 10993 compliant (Cytotoxicity, Sensitization, Irritation).
Key Features
  • Medical-grade 304/316L stainless steel construction
  • Precision laser-etched depth graduations for accurate insertion control
  • Longitudinal slots for improved tissue capture and fluid aspiration
  • Multiple tip designs for various clinical applications
  • Electropolished surfaces for minimal tissue trauma
  • Standard Luer Lock compatibility
  • Single-use sterile packaging