SUS304 Medical Stainless Steel Back Cut Needle Tube , IV Cannula For Single Use ISO9626

SUS304 Medical Stainless Steel Back Cut Needle Tube , IV Cannula For Single Use ISO9626

SUS304 Medical Grade Stainless Steel Back Cut Needle Tube is a precision-engineered hypotube specifically designed as the introducer needle for Peripheral Intravenous (IV) Cannulas. Unlike standard IV needle tubes with a conventional lancet bevel, this tube features a specialized "Back Cut" shape—a secondary precision grind located on the heel or side of the primary bevel. Manufactured from medical-grade SUS304 stainless steel, this component provides the initial venous access, creating a pathway for the flexible plastic cannula to be threaded into the patient’s vein. YUHONG GROUP produces high-batch stainless steel needle tubes complied with ISO9626: 2016 standard. We can customize various kinds of medical needle tubes with different needle tips, such as back-cut, back-eye, tri-bevelled, five-gace bevel, flat bevel tip, etc. All the medical stainless steel needle tubes are inspected strictly before shipment.

How the Back-cut needle point works:

A secondary flat or concave grind is applied opposite the primary lancet bevel. - This shortens the effective cutting heel, leaving a blunt, non-cutting surface at the rear of the bevel.

As the needle penetrates the vein, the back cut prevents the sharp heel from coring a "flap" of venous tissue, allowing the plastic cannula to slide off the needle more smoothly and completely.

Main Injection Areas:

• Dorsum of the Hand (Metacarpal Veins): 22G – 24G
• Cephalic Vein (Forearm & Upper Arm): 18G – 20G
• Basilic Vein (Medial Forearm & Arm): 18G – 20G
• Median Cubital Vein (Antecubital Fossa): 16G – 18G
• Forearm (Dorsal & Ventral – “Hidden Veins”): 20G – 22G
• Lower Extremity (Dorsal Foot – Dorsal Venous Arch & Great Saphenous Vein at Ankle): 20G – 24G.
• External Jugular Vein (Neck – Limited Use): 18G – 20G
• Scalp Veins (Neonates & Infants): 24G – 26G

Regular Sizes:

Key Features of SUS304 Back-Cut IV Cannulas:

• Anti-Coring Design: The back cut eliminates the sharp heel, preventing removal of venous tissue plugs.
• Superior Flashback: The precise lumen geometry allows immediate blood visualization upon vein entry.
• Ultrasharp Penetration: Triple-bevel or back-cut double-bevel reduces patient discomfort and insertion force.
• Corrosion Resistance: SUS304 offers excellent resistance to blood, saline, and common IV fluids.

Different Types of Back-Cut IV Needles:

• Conventional Ported IV Needle: Standard back-cut needle housed in a plastic hub with a flashback chamber. Used in 90% of peripheral IVs.
• Safety IV Needle (Passive): Back-cut needle with a spring-loaded retraction mechanism or sliding shield that covers the tip after withdrawal.
• Winged (Butterfly) Infusion Needle: Short back-cut needle attached to flexible wings and tubing; used for fragile or superficial veins.
• Long Peripheral IV Needle (Long PIVC): 5-6 cm needle tube with back cut, designed for deeper veins in obese patients.