ISO9626 SS304 Stainless Steel Triple Bevel Point Injection Needle Tube 1.78*45MM
The injection needle tube, also called a cannula, is a small-bore, hollow needle tube used to deliver or remove fluids and to collect samples. It's typically made of stainless steel 304 due to the durability and corrosion resistance and it is attached to a syringe for injection purposes. The needle tube's small diameter allows for precise and controlled injection of fluids into the body. The needle point is grinded with three distinct bevels (a primary long bevel and two secondary shorter bevels) forming the sharp tip designed to enhance sharpness and reduce penetration force and tissue trauma compared to standard single-bevel points. We can also custom different needle points of medical stainless steel needle tubes according to clients' drawings or samples.
Key Properties:
- Corrosion Resistance: Excellent resistance to body fluids, many chemicals, and sterilization processes.
- Strength & Ductility: High tensile strength combined with good formability, crucial for thin-walled tubing.
- Surface Finish: Capable of achieving the very smooth surface finish (Ra ≤ 0.8 μm) required by ISO9626 to minimize friction and tissue drag.
Different Sizes for Different Injection Areas:
The choice of needle gauge (size) is primarily dictated by:
1. Viscosity of Fluid: Thicker fluids (vaccines, suspensions) require larger bores (e.g., 18G, 20G, 22G).
2. Volume of Fluid: Larger volumes benefit from larger bores for faster delivery.
3. Injection Depth and Target Tissue:
- Intramuscular (IM): Deeper injection into muscle. Common sizes: 20G, 21G, 22G, 23G. Balance flow rate with patient comfort.
- Subcutaneous (SC): Injection into fatty tissue under skin. Common sizes: 23G, 25G, 26G, 27G. Smaller gauges preferred for comfort in frequent injections (e.g., insulin).
- Intradermal (ID): Shallow injection within skin layers. Common sizes: 26G, 27G, 28G, 30G. Very fine gauges for precise, small volumes.
- Intravenous (IV): Into veins. Common sizes: 18G, 20G, 22G (for rapid infusion), 24G (for smaller veins/pediatrics).
- Dermatology/Fine Work: Procedures like filler injections often use 27G, 30G, or even finer triple bevel needles for minimal trauma and precise placement.
Applications:
- Hypodermic Needles: Core component for disposable syringes used for: vaccinations (IM, SC), Insulin delivery (SC: 28G-31G common), hormone therapy, administering medications (IV, IM, SC, ID), drawing blood (venipuncture - larger gauges like 21G)
- Pen Needles: For insulin pens (commonly 29G, 30G, 31G, 32G with tri-bevel).
- Dental Needles: For local anesthesia delivery.
- Veterinary Needles: Similar applications in animal healthcare.
- Biopharmaceutical Processing: Transfer needles, sampling needles.
- Ophthalmic Surgery: Fine gauge needles for delicate procedures.
- Aesthetic Medicine: Precise delivery of dermal fillers, botulinum toxin, mesotherapy (27G-33G).
- Specialized Industrial Applications: Precision fluid dispensing in electronics, adhesives, lubricants; sampling probes.
