医疗骨钉导杆 / Medical Bone Screw Guide Rod
医疗骨钉导杆是骨科手术中用于精准引导钻头与螺钉植入的核心辅助器械。由于需要在狭小空间内操作并直接接触人体组织，该部件对材料的生物相容性、尺寸精度及表面完整性提出了极高要求。昆山图达讯电子科技有限公司采用医用级钛合金TC4（Ti-6Al-4V），依托高精度走心机（Swiss-type CNC）工艺，为您提供兼具高强度与优异耐腐蚀性的精密导杆解决方案。
针对导杆长径比大、易让刀的物理特性，我们运用先进的走心机导套支撑技术与双主轴同步加工，有效克服了细长轴车削的变形难题。产品选用医用级TC4钛合金、具备优良生物相容性，并通过微米级的公差控制与精细的表面阳极氧化处理，确保在复杂骨科手术中的绝对可靠与顺畅。
关键参数
表格
| 参数项 | 规格说明 |
|---|---|
| 产品材质 | 钛合金 TC4 (Ti-6Al-4V) |
| 加工工艺 | 走心机纵切、车铣复合、双主轴同步加工 |
| 直径范围 | Φ2.0mm – Φ4.5mm |
| 典型长度 | 30mm – 80mm |
| 公差等级 | ±0.005mm (IT6) |
| 表面粗糙度 | Ra0.4 – Ra0.8 |
| 表面处理 | 阳极氧化 (Anodizing) |
| 应用领域 | 骨科锁定钢板、髓内钉、外固定支架 |
| 最小起订 | 100件起，支持前期打样 |
| 打样周期 | 3-5个工作日（视具体结构而定） |
产品特点与走心机工艺优势
1. 高刚性细长轴精密车削
导杆长径比通常大于10，传统车床极易产生让刀与振纹。图达讯采用进口走心机，通过导套全程支撑棒料，实现“刀具移动而材料不悬伸”的加工方式，确保细长杆件的高刚性与直线度。
2. 微米级尺寸与R角控制
医疗导杆的台阶过渡处应力集中易导致断裂。我们的车铣复合工艺可精密控制过渡圆弧R角，结合±0.005mm的严苛公差，确保导杆与导向套筒的完美滑动配合，避免手术卡顿。
3. 优异的表面完整性与耐腐蚀性
钛合金加工易产生表面变质层。我们通过优化切削参数与刀具路径，将表面粗糙度稳定控制在Ra0.4–Ra0.8。配合医用级阳极氧化处理，进一步提升表面硬度与耐体液腐蚀性能。
4. 一次装夹保证极高同轴度
依托西铁城、津上、斯大等进口走心机的双主轴同步对接功能，导杆的头部、杆部与尾部螺纹可在一次装夹中完成全部车铣削工序，彻底消除二次装夹带来的同轴度误差。
典型应用
- 骨科锁定钢板配套导杆：用于骨折复位时的精准钻孔引导，要求极高的直线度与表面光洁度，确保钻头不偏离预定轨迹。
- 髓内钉导向杆：作为髓内钉植入的延伸导向，需承受较大的轴向推力，高刚性钛合金材质与精密螺纹保证了连接的稳固性。
- 外固定支架连接杆：用于体外固定支架的组装与调节，阳极氧化表面不仅耐磨，还能有效抵抗消毒液与人体体液的长期侵蚀。
关于昆山图达讯
昆山图达讯电子科技有限公司始创于1998年，深耕精密走心机加工近三十年。我们拥有60余台西铁城、津上、斯大进口走心机，日产能高达50万件，并已通过 IATF16949 与 ISO9001 双体系认证。从材料甄选到最终检验，我们致力于为医疗器械、航空航天、5G通信及新能源等高端领域提供微米级精密零部件。
获取定制报价与免费打样：
- 官网：www.tudasyn.com
- 邮箱：yty@tudasyn.com
- 电话：18913105795
English Version
Medical Bone Screw Guide Rod
The medical bone screw guide rod is a core auxiliary instrument used in orthopedic surgeries to accurately guide the drilling and implantation of screws. Since it operates in confined spaces and directly contacts human tissues, the component demands exceptional material biocompatibility, dimensional accuracy, and surface integrity. Kunshan Tudasyn Electronic Technology Co., Ltd. utilizes medical-grade Titanium Alloy TC4 (Ti-6Al-4V) and leverages high-precision Swiss-type CNC machining to provide robust and corrosion-resistant guide rod solutions.
Addressing the physical challenges of high length-to-diameter ratios and tool deflection, we employ advanced guide bushing support and twin-spindle synchronous machining. Made from medical-grade TC4 titanium with excellent biocompatibility, and through micron-level tolerance control and fine anodizing treatment, we ensure absolute reliability and smooth operation in complex orthopedic procedures.
Key Specifications
表格
| Parameter | Specification |
|---|---|
| Material | Titanium Alloy TC4 (Ti-6Al-4V) |
| Machining Process | Swiss-type sliding, mill-turn, twin-spindle sync |
| Diameter Range | Φ2.0mm – Φ4.5mm |
| Typical Length | 30mm – 80mm |
| Tolerance | ±0.005mm (IT6) |
| Surface Roughness | Ra0.4 – Ra0.8 |
| Surface Treatment | Anodizing |
| Applications | Locking plates, intramedullary nails, external fixators |
| MOQ | 100 pcs, prototyping supported |
| Lead Time | 3-5 working days (depends on structure) |
Features & Swiss-Type CNC Advantages
1. High-Rigidity Slender Shaft Machining
Guide rods typically have a length-to-diameter ratio greater than 10, making them prone to deflection on traditional lathes. Tudasyn uses imported Swiss-type CNC machines with guide bushings to support the bar stock continuously. This ensures the tool moves while the material doesn't overhang, guaranteeing high rigidity and straightness for slender shafts.
2. Micron-Level Dimensional & Fillet Control
Stress concentration at step transitions can lead to rod fracture. Our mill-turn capabilities precisely control the transition fillet radii (R angles). Combined with strict ±0.005mm tolerances, this ensures a perfect sliding fit between the guide rod and the sleeve, preventing surgical jamming.
3. Superior Surface Integrity & Corrosion Resistance
Titanium alloy machining can easily generate surface alteration layers. By optimizing cutting parameters and tool paths, we stabilize surface roughness at Ra0.4–Ra0.8. Coupled with medical-grade anodizing, this significantly enhances surface hardness and resistance to bodily fluid corrosion.
4. Single-Setup High Coaxiality
Relying on the twin-spindle synchronous pick-off functions of our Citizen, Tsugami, and Star machines, the head, shaft, and tail threads of the guide rod are completed in a single setup. This entirely eliminates coaxiality errors caused by secondary re-clamping.
Typical Applications
- Orthopedic Locking Plate Guide Rods: Used for precise drilling guidance during fracture reduction, requiring extreme straightness and surface finish to ensure the drill bit does not deviate from the planned trajectory.
- Intramedullary Nail Guide Rods: Acts as an extension guide for nail insertion. It must withstand significant axial thrust; the high-rigidity titanium and precision threads ensure a stable connection.
- External Fixator Connecting Rods: Used for the assembly and adjustment of external frames. The anodized surface is wear-resistant and effectively resists long-term erosion from disinfectants and bodily fluids.
About Kunshan Tudasyn
Kunshan Tudasyn Electronic Technology Co., Ltd. established in Shenzhen in 1998, has been deeply engaged in precision Swiss-type CNC machining for nearly 30 years. We operate over 60 imported Swiss-type CNC machines from Citizen, Tsugami, and Star, with a daily production capacity of up to 500,000 pieces. We are dual-certified with IATF16949 and ISO9001. From material selection to final inspection, we are committed to providing micron-level precision components for high-end sectors including medical devices, aerospace, 5G communications, and new energy.
Get a Custom Quote & Free Prototyping:
- Website: www.tudasyn.com
- Email: yty@tudasyn.com
- Phone: +86 18913105795
