Overview
Infusion needles are critical components in medical settings, designed for safe and efficient delivery of intravenous therapies. They consist of a hollow stainless steel or plastic shaft with a sharp beveled tip to penetrate the skin and vein with minimal discomfort. Modern variants often include safety features like retractable mechanisms or shields to prevent accidental needle sticks. These needles are standardized by gauge (diameter) and length, with smaller gauge numbers indicating larger diameters. Common sizes range from 18G (large bore for rapid infusion) to 26G (fine needle for pediatric or sensitive patients). Their design prioritizes patient comfort while ensuring reliable fluid delivery.
Structure and Working Principle
A standard infusion needle comprises three main parts: the hub (which connects to IV tubing), the cannula (hollow shaft), and the sharpened tip. The hub is typically made of plastic with a Luer lock or slip connection, while the cannula is precision-formed stainless steel for strength and flexibility. During use, the needle penetrates the vein at a shallow angle, allowing blood to flash back into the chamber (in winged infusion sets) to confirm proper placement. Once secured, fluids flow through the cannula into the bloodstream. Safety needles may include features like automatic retraction or sliding shields that activate upon withdrawal from the vein.
Key Features
Modern infusion needles emphasize safety and efficiency. Many comply with OSHA requirements for needlestick prevention, incorporating mechanisms that cover the sharp immediately after use. Some feature thin-wall technology that maximizes flow rate without increasing external diameter. Other innovations include ultra-sharp triple-bevel tips for smoother insertion, tapered designs to reduce coring of injection ports, and radiopaque markers for X-ray visibility. Winged infusion sets (butterfly needles) add flexible plastic wings for better stabilization during prolonged infusions. Anti-reflux valves are sometimes included to prevent backflow of blood.
Application Areas
These needles serve across healthcare settings: hospitals use them for routine IV therapy and emergency fluid resuscitation; clinics employ them for chemotherapy or antibiotic administration; home healthcare providers rely on them for long-term treatments. Specialized applications include pediatric needles with shorter lengths, extra-thin gauges for geriatric patients with fragile veins, and safety-engineered models for high-risk environments. Blood collection needles share similar designs but often have larger gauges for efficient sample drawing. Some variants integrate with IV catheters for extended dwell times.
Maintenance and Precautions
Infusion needles are strictly single-use devices to prevent infections. After use, they must be disposed of in puncture-resistant sharps containers following biohazard protocols. Never recap used needles due to injury risks. For optimal performance, store in original packaging away from moisture and extreme temperatures. Inspect for damage before use—bent or dull needles can cause vein trauma. Healthcare workers should receive regular training on safe insertion techniques and proper disposal methods to comply with bloodborne pathogen standards (OSHA 29 CFR 1910.1030).
B2B Procurement Guide
When sourcing infusion needles wholesale, prioritize suppliers with ISO 13485 certification for medical devices. Key considerations include compatibility with your existing IV sets, availability of safety-engineered options, and minimum order quantities (typically 1,000+ units for cost efficiency). Evaluate samples for smooth insertion performance and consistent flashback visibility. For tenders, specify required certifications (e.g., FDA 510(k), CE Mark). Many manufacturers offer private labeling for large-volume buyers. Lead times vary but average 4-8 weeks for customized orders. Consider total cost of ownership including disposal expenses when comparing safety versus conventional models.
Related Manufacturers
- 主营：密封试验仪、拉力试验机、顶空气体分析仪、医用针管韧性测试仪、摩擦系数仪、热封试验仪、透气度测试仪、偏光应力仪、电子轴偏差测试仪、电子壁厚测试仪、扭矩仪、玻璃瓶耐热冲击试验仪、玻璃瓶耐内压力试验机、线热膨胀系数测定仪、测厚仪、落镖冲击试验仪、微生物侵入密封试验仪、封盖密封试验仪、测试仪、试验机
- 主营：注射器测试仪、鲁尔圆锥接头性能综合测试仪、注射器药液推挤力测试仪、注射针测试仪、针尖刺穿力测试仪、输液器泄漏正负压测试仪、针管刚性测试仪、针尖锋利度测试仪、缝合针测试仪、抓取钳传递系数测试仪、牙钻颈部强度测试仪、牙钻端侧刃切削试验仪、牙科手机综合测试台、手术刀片弹性测试仪、牙钻径向跳动测试仪、手术刀片锋利度测试仪、牙科治疗机压头损失测试仪、缝合线线径测试仪、锋利度测试仪、堵转扭矩测试仪、阴道扩张器挠度测试仪、器身密合性测试仪、鲁尔圆锥接头多功能测试仪、抓取钳锁合啮合力测试仪、导丝抗弯曲测试仪
- 主营：口罩防护服、鲁尔圆锥、纺织类检测仪器、注射针、缝合针、测定仪、传感器、对色箱、硬度计、测试仪、试验箱、百格刮擦、疲劳强度测试仪、织物燃烧、试验仪、刮擦仪
- 主营：热封强度试验仪、落镖冲击试验仪、测厚仪、静脉输液针流量测试仪、玻璃瓶冷热冲击试验仪、顶空气体分析仪、垂直轴偏差测试仪、摆锤冲击试验仪、摩擦系数测定仪、气体渗透性测试仪、水蒸气透过率测试仪、微泄露测试仪、薄膜拉力机、泄露与密封性测试仪、玻璃瓶耐内压测试仪、自动扭矩仪、智能电子拉力试验机、透湿性测试仪、隔膜透气度测试仪
- 主营：检测仪、电子天平、菌落分析仪、针尖穿刺力测试、总有机碳分析仪、防护服检测、生化霉菌培养箱、生物安全柜、医用冷藏柜、阻湿态微生穿透测试仪、颗粒过滤效率检测仪、合成血液测试仪、织物涨破、静电衰减测试仪、气调保鲜箱、微生物限度、口罩检测仪器、多功能拉力机、过氧化氢消毒、微粒检测仪、风量仪、超净工作台、恒温恒湿箱、防护服手术衣检测仪器、导管流量测试仪
- 主营：测厚仪、密封性测试仪、热封试验仪、输液器真空泄漏试验仪、撕裂度测试仪、摩擦系数仪、剥离强度测试仪、持粘测试仪、水蒸气透过率测试仪、透湿性测试仪、气体透过率测试仪、透气性测试仪、氧气透过率测试仪、电子拉力试验机、落球冲击试验仪、落镖冲击试验仪、透气度测试仪、密封测试仪、薄膜测厚仪、耐破度测试仪、鲁尔接头测试仪、鼻氧管测试仪、缝合线线径测试仪、包装密封性测试仪、医药包装性能测试仪、锋利度测试仪
- 主营：测试机、仪测试、检验机、输液针拉力强度、测验仪、护目镜、卫生巾、astmf2992、测定机、耐磨仪、强力仪、nbs橡胶、织物胀、卫生纸、老化箱、检测仪、灼热丝、试验机、试验仪、纸尿裤、能检验、测定仪、呼吸气密、测试温度、口罩耳带、性测试仪
- 主营：注射针、测试仪、降解测试、血压计耐变压
- 主营：异形贴、医用敷料、膏药空白贴、留置针贴、三九三伏贴布、腰椎颈椎膝盖贴、艾草肩颈膝盖贴、医用胶带
- 主营：分析仪、阻菌仪、磨擦仪、导管针、针针管、缝合针、测量仪、穿刺器、测试台、灭火剂、安全阀、宠物机、螺旋夹、定硫仪、匀胶机、导热仪、挺度仪、采血袋、酸度计、轮椅车、性测试、润滑脂、打火机、粘度计、注射器
- 主营：鲁尔接头综合性能测试仪、热敷贴温度特性测试仪、偏光应力仪、输液港多次穿刺测试仪、注射器滑动性能测试仪、自动瓶盖扭矩仪、玻璃瓶耐内压测试仪、耐碱性试验装置、鼻氧管综合性能测试仪、呼吸管路气流阻力测试仪、人工血管水渗透性测试仪、器身密合性正压测试仪、药液过滤器细菌截留性能测试仪、吸收速度测试仪、可分散性测试仪、导管动力注射流量与压力测试仪、玻璃瓶切割机、开启力测试仪、罐盖轴向承压力测试仪、内涂膜完整性测试仪
- 主营：密封试验仪、拉力试验机、顶空气体分析仪、医用针管韧性测试仪、摩擦系数仪、热封试验仪、透气度测试仪、测厚仪、偏光应力仪、轴偏差测试仪、扭矩仪、冲击试验仪、耐内压力测试仪、颗粒耐水性测试仪、试验仪、测试仪、检测仪
- 主营：防护服、椅脚轮、氙灯老化、测定仪、传感器、皮革耐折、落球回弹、测试仪、试验箱、耐磨仪、耐擦洗、检测仪、雾化仪、试验机、试验仪、刮擦仪、测试箱、风速仪、整鞋耐磨、对色灯箱、呼吸气密、医用口罩、智能仪器、拧压滚轮、床毯燃烧
- 主营：手工黑膏药代加工、冷敷凝胶、足浴包、无菌滞留针、艾灸液、三伏贴代加工、蒸汽眼罩、膏药oem贴牌加工、远红外磁疗贴、远红外理疗贴、穴位贴敷治疗贴、穴位压力刺激贴、暖宫贴代加工、医用冷敷贴代加工、水凝胶眼贴、发热贴、穴位贴定制代加工、医用远红外治疗贴、医用海藻酸钙敷料、重组胶原蛋白敷料、透明质酸钠敷料、三九贴、敷料贴代加工、光子冷凝胶代加工、减肥贴代加工、疼痛凝胶代加工
- 主营：密封性测试仪、测厚仪、智能电子拉力试验机、注射针刚性测试仪、医用针管韧性测试仪、瓶盖扭矩仪、剥离强度试验机、穿刺力测试仪、初粘检测仪、摩擦系数仪、落镖冲击试验仪、电子瓶壁厚测量仪、玻璃瓶抗冲击试验仪、注射器滑动性能测试仪、导管流量测试仪、质构仪、持粘性测试仪、初粘测试仪、垂直轴偏差测试仪、偏光应力仪、阻水性测试仪、缝合线线径测量仪、安瓿瓶折断力测试仪、安瓿瓶圆跳动测试仪、锋利度测试仪