Overview
Syringes paired with hypodermic needles form critical medical delivery systems for administering medications, vaccines, or drawing biological samples. The modern disposable syringe was pioneered in the 1950s, replacing glass and metal reusable versions. Today's devices combine precision engineering with medical-grade plastics and stainless steel. Standard components include a graduated polypropylene barrel, rubber-tipped plunger, and stainless steel needle. They are manufactured as sterile, single-use devices to prevent cross-contamination. Various sizes accommodate different medical needs from insulin therapy to vaccine administration.
Structure and Working Principle
The syringe consists of three main parts: the barrel for holding liquid, the plunger for creating pressure, and the needle for penetration. Needles feature a hollow stainless steel cannula with a beveled tip for smooth tissue penetration, connected via Luer-lock or slip-tip mechanisms. Operation involves drawing medication into the barrel by retracting the plunger, then expelling it through the needle via downward pressure. Needle gauge (diameter) and length are carefully selected based on medication viscosity and injection depth requirements. Smaller numbers indicate larger diameters (e.g., 18G for thick medications, 27G for insulin).
Key Features
Modern syringes incorporate several critical features: graduated markings for precise dosing, transparent barrels for visual confirmation, and safety mechanisms to prevent needlestick injuries. Needle tips are laser-cut for sharpness and coated with silicone for smooth penetration. Specialized variants include insulin syringes with ultra-fine needles, tuberculin syringes for precise small doses, and safety-engineered devices with retractable needles. Many incorporate passive safety features that automatically shield the needle after use, significantly reducing occupational hazards for healthcare workers.
Application Areas
These devices serve across all medical settings: hospitals administer IV medications and draw blood, clinics deliver vaccines, and patients self-administer insulin or biologics. Dental syringes deliver local anesthetics, while veterinary versions adapt for animal use. Beyond human medicine, syringes are essential in laboratory settings for precise reagent measurement and sample collection. Industrial applications include precision lubrication and adhesive application where controlled dispensing is required. The COVID-19 pandemic dramatically increased global demand for vaccination syringes with specific 0.5mL low-dead-space designs.
Maintenance and Precautions
As single-use devices, maintenance primarily involves proper disposal in puncture-resistant sharps containers to prevent needlestick injuries and disease transmission. Never recap needles after use. Storage should maintain sterility in original packaging until use. Healthcare facilities must establish strict protocols for handling and disposal, complying with OSHA regulations. Manufacturers must meet ISO 7886-1 standards for sterility and performance. Bulk procurement should verify certifications including FDA 510(k) clearance or CE marking for international markets.
B2B Procurement Guide
Medical buyers should evaluate suppliers based on: ISO 13485 certification, production capacity for consistent supply, and ability to provide customized specifications. Key considerations include needle gauge/length combinations, syringe volume accuracy, and packaging options (individual sterile wraps vs. bulk). Leading manufacturers include Becton Dickinson, Terumo, and Nipro. Prices vary by volume, with typical MOQs starting at 10,000 units. Emerging markets are shifting toward safety-engineered devices due to regulatory requirements. Buyers should anticipate 2-8 week lead times and consider dual-sourcing strategies to mitigate supply chain risks.
Related Manufacturers
- 主营：鲁尔圆锥接头性能综合测试仪、抓取钳传递系数测试仪、牙钻颈部强度测试仪、注射针测试仪、注射器测试仪、注射器药液推挤力测试仪、针尖刺穿力测试仪、针管刚性测试仪、针尖锋利度测试仪、缝合针测试仪、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、输液器泄漏正负压测试仪、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：热封强度试验仪、落镖冲击试验仪、测厚仪、注射器、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：密封测试仪、水蒸气透过率测试仪、气体透过率测试仪、注射器滑动性能测试仪、注射器器身密合性测试、微泄漏无损密封测试仪、微泄漏密封试验仪、薄膜测厚仪、接骨螺钉性能测试仪、透气度测试仪、热封试验仪、摩擦系数仪、氧气透过率测试仪、密封试验仪、泄漏与密封强度测试仪、扭矩试验仪、包装耐压试验仪、包装耐压性能测试仪、导管滑动性能测试仪、刷磨仪、导管摩擦力测试仪、揉搓试验仪、摩擦系数剥离试验机、穿刺力测试仪、微生物入侵试验仪
- 主营：密封试验仪、拉力试验机、顶空气体分析仪、注射器、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：注射针测试仪、缝合针测试仪、注射器试验仪、医用针管测试仪、医用注射针测试仪、医用缝合线测试仪、输注泵流量测试仪、导丝破裂工装
- 主营：注射针、测试仪、降解测试、血压计耐变压
- 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、注射器滑动性能测试仪、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、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
- 主营：穴位贴代加工、黑膏药代加工、老膏药代加工、注射器、三伏贴代加工、眼贴、小儿贴、膏药oem贴牌代工、退热贴代加工、透皮贴、膏药定制工厂、穴位压力刺激贴、医用冷敷贴、暖宫贴、冷敷凝胶、艾灸液、减肥贴代加工、艾灸贴、蜂蜜贴、蒸汽眼罩、肚脐贴、药泥贴、远红外理疗贴、胶原贴敷料、重组胶原蛋白敷料贴、透明质酸钠敷料
- 主营：密封性测试仪、气体透过率测试仪、水蒸气透过率测试仪、针尖穿刺力测试仪、数显拉力机、微泄漏密封测试仪、揉搓试验仪、壁厚底厚测试仪、氧气透过率测试仪、泄漏与密封强度测试仪、摩擦系数仪、持粘测试仪、热封试验仪、微泄漏密封试验仪、电池隔膜透气度测试仪、薄膜测厚仪、瓶盖扭矩试验仪、偏光应力仪、电子垂直轴偏差测试仪、包装耐压测试仪、耐压强度测试仪、密封试验仪、导管滑动性能测试仪、导丝摩擦力测试仪、测试仪
- 主营：测试仪、检测仪器、试验仪、注射器、拉力机、耐碎石试验机、鲁尔圆锥测试仪
- 主营：石墨管、空心阴极灯、元素灯、德国耶拿注射器、原子荧光灯、氘灯、雾化器、样品杯、样品管、标准溶液、紫外氘灯、钨灯、炬管、石墨锥、原子吸收光谱仪、原子荧光光谱仪、ICP光谱仪、ICP质谱仪
- 主营：密封试验仪、拉力试验机、顶空气体分析仪、注射器、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：拉力试验机、耐折度仪、耐破度仪、探针初粘测试仪、层间剥离试验机、老化箱、电晕笔、扭矩仪、压缩试验仪、质构仪、万能试验机、摩擦系数仪、跌落试验机、热封试验仪、柔软度仪、密封试验西、环形初粘测试仪、恒温恒湿箱、高低温试验机、恒温持粘测试仪、干燥箱、撕裂度仪、抄片机、全自动抄片机、瓦力打浆机
- 主营：手工黑膏药代加工、冷敷凝胶、足浴包、注射器、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：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、注射器滑动性能测试仪、导管动力注射流量与压力测试仪、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、输液港多次穿刺测试仪、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、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