Post Finishing Solutions
Medical-Grade Surface Treatment & Precision Finishing
1. Sandblasting
Process Introduction
Sandblasting creates a micro-rough surface to enhance osseointegration for orthopedic implants, removing oxides and scale while providing a uniform matte finish. It is widely used for bone-contacting implant surfaces to improve long-term clinical stability.
Technical Specifications
Typical Orthopedic Applications
· Implants: Trauma plates, bone screws, spinal fusion cages, porous implant surfaces
· Instruments: Non-slip instrument handles, textured high-precision tool components
2. Polishing
Process Introduction
Polishing reduces surface roughness to minimize wear, friction and tissue irritation, improving biocompatibility and aesthetic appearance for articulating surfaces and surgical instruments.
Technical Specifications
Typical Orthopedic Applications
· Implants: Hip/knee prostheses, femoral heads, acetabular liners
· Instruments: Osteotomes, forceps tips, minimally invasive shafts
3. Electropolishing
Process Introduction
Electropolishing removes micro-burrs and surface contaminants, forming a smooth passive oxide layer to improve corrosion resistance and cleanability for surgical instruments and implants.
Technical Specifications
Typical Orthopedic Applications
· Implants: Small bone screws, non-magnetic components
· Instruments: Reusable surgical tools, endoscopic parts
4. Passivation
Process Introduction
Passivation forms a protective chromium oxide layer to prevent rust and corrosion, enhancing biostability and meeting medical implant cleanliness standards.
Technical Specifications
Typical Orthopedic Applications
· Implants: Bone pins, auxiliary fixation devices
· Instruments: All reusable stainless steel instruments
5. Laser Marking
Process Introduction
Laser marking provides permanent, non-damaging identification for full traceability (UDI, lot number, serial number) without affecting biocompatibility.
Technical Specifications
Typical Orthopedic Applications
· Implants: UDI marking, lot & serial number tracking
· Instruments: Manufacturer, batch & sterilization marking
6. Heat Treatment
Process Introduction
Heat treatment optimizes hardness, strength and fatigue resistance; relieves internal stress to avoid deformation in high-stress orthopedic parts.
Technical Specifications
Typical Orthopedic Applications
· Implants: Bone screws, intramedullary nails, joint stems
· Instruments: High-torque tools, durable shafts
7. Anodizing
Process Introduction
Anodizing forms a dense, protective oxide film on titanium surfaces, improving corrosion resistance, insulation and wear resistance. It also allows color coding for implant size identification in orthopedics.
Technical Specifications
Typical Orthopedic Applications
· Implants: Bone screws, intramedullary nails, joint stems
· Instruments: High-torque tools, durable shafts
8. TiN Coating
Process Introduction
TiN (Titanium Nitride) coating is a hard PVD ceramic coating that provides excellent wear resistance, low friction and high hardness, widely used to extend the service life of orthopedic instruments.
Technical Specifications
Typical Orthopedic Applications
· Implants: Reusable drills, taps, reamers, forceps, osteotomes
· Instruments: High-wear auxiliary implant components
9. DLC Coating
Process Introduction
DLC (Diamond-Like Carbon) coating offers ultra-low friction, high hardness and excellent biocompatibility, ideal for articulating implant surfaces and wear-prone surgical instruments.
Technical Specifications
Typical Orthopedic Applications
· Implants: Joint articulating surfaces, spinal implant sliding parts
· Instruments: High-wear minimally invasive tools, sliding components
10. Electroplating
Process Introduction
Medical-grade electroplating deposits a thin metal layer to improve surface hardness, corrosion resistance, conductivity and appearance, complying with ISO 13485 for orthopedic devices.
Technical Specifications
Typical Orthopedic Applications
· Implants: Conductive surgical tools, corrosion-resistant clips
· Instruments: Low-current conductive components, marker parts
Medical-Grade Surface Treatment
Post Finishing Quality Assurance
· Full-process post-finishing coverage: from surface treatment, coating and cleaning to final traceability marking
· Advanced inspection for surface roughness, coating thickness and dimensional accuracy using CMM and profilometers
· Strict batch traceability and process record management in compliance with ISO 13485
· Professional post-finishing engineering team with extensive experience in orthopedic medical device manufacturing
Get A Quote
If you have requirements for precision machining, prototyping or small batch production of orthopedic implants and instruments, please feel free to send us your drawings and specifications.We will provide you with a professional quotation and solution within 24 hours.