Medical care

Springs are key components of minimally invasive surgical instruments, such as micro torsion springs that can accurately control the opening and closing angles of the instruments and meet the requirements of fine operation;

应用领域	具体应用产品	常用材质	核心要求
药物输送类	胰岛素注射笔、自动注射器、雾化吸入器、给药泵、药液阀门	316医用不锈钢、超精密琴钢线	无磁、耐腐蚀、弹力稳定、无菌适配
微创介入类	血管栓塞弹簧圈、导管支撑弹簧、导丝弹性件、介入器械微型弹片	铂铱合金、304/316L不锈钢、镍钛合金	生物相容性高、植入安全、超弹性、耐体液腐蚀
手术器械类	吻合器弹簧、腹腔镜器械弹件、骨科手术配件、止血器械弹簧	316L不锈钢、耐腐蚀合金	高强度、耐消毒、反复回弹不变形
植入医用类	心脏起搏器触点弹簧、人工器官弹性配件、体内固定微型弹簧	医用级镍钛合金、高纯不锈钢	无毒无析出、长期耐人体体液、耐疲劳
康复护理类	医用病床、手术台、康复理疗设备、护理轮椅	碳钢镀环保涂层、304不锈钢	承重强、阻尼稳定、升降调节顺畅
家用便携医疗	血糖仪弹簧、助听器弹片、理疗仪弹性组件、体温检测设备	微型精密不锈钢丝	体积微小、弹力均匀、低疲劳损耗

General Material Selection Standards for Medical Springs

• External medical use (in vitro): 304/316L stainless steel; resistant to alcohol, autoclaving (high temperature and high pressure sterilization).

• Implantable medical use (in vivo): Nickel-titanium alloy (Nitinol), platinum-iridium alloy; compliant with ISO 13485 medical certification.

• Micro precision medical springs: Special medical-grade music wire (piano wire); impurity-free, non-magnetic.

Reference for Industry Authoritative Certifications

• ISO 13485 – Medical devices – Quality management systems

• ISO 10993 – Biological evaluation of medical devices (biocompatibility)