MATRIX MCD - Biocompatible Micro Abrasive for Medical Implants
MATRIX MCD® is a specialized biocompatible micro abrasive blasting solution designed for titanium and titanium alloy medical devices, particularly in the dental and orthopedic sectors. Utilizing a proprietary multi-phase calcium phosphate (MCD) abrasive, it delivers precise surface texturing without compromising the structural integrity of the implant. Unlike conventional abrasive blasting methods, which may leave residual contaminants, MATRIX MCD® ensures a residue-free finish, complying with ASTM F86 passivation standards. This technology facilitates enhanced osseointegration by increasing bone-to-implant contact area, which is crucial for implant stability. It is applicable in both traditional metallurgical and additive manufacturing processes. The system enables adjustable parameters like particle size, allowing customization for specific implant designs. Furthermore, MATRIX MCD® can integrate with other surface finishing techniques, such as anodized coloring or hydroxyapatite coatings, to meet diverse clinical needs, while maintaining high volume production efficiency through automated systems.
Exacting Biocompatible Micro Abrasive Blasting Without Residual Contaminants
Grit-blasting with Himed’s MCD apatitic abrasive creates a virtually residue-free, textured surface on titanium and Ti-alloy medical devices. Orthopedic and dental implants require such surfaces to either increase the surface area that comes in contact with the bone, or as a surface preparation prior to the application of a coating such as hydroxyapatite or titanium.
Where conventional abrasive blasting techniques utilizing alumina or silicon carbide leave residual abrasive as a contaminant, Himed’s MATRIX MCD® is a biocompatible solution that leaves no such contaminants after ASTM F86 passivation, resulting in a cleaner textured surface.
MATRIX MCD Attributes
- Highly uniform macro & micro surface texturing
- Custom masking options for all implant surfaces
- Free of alumina and silicon carbide contaminants
- Surface roughness range (RA) of 1.0–3.2 micrometers
Surface Roughness Promotes Implant Osseointegration
Decades of research have shown that the surface roughness (Ra) of an implantable titanium device can positively impact the natural factors for osteogenesis due to an increase in the total bone-to-implant contact area. That’s why dental and orthopedic device manufacturers around the world work with Himed to optimize an application of MATRIX MCD® that will support improved osseointegration of their implants.
While there are chemical methods for achieving a textured surface on titanium, Himed’s MATRIX MCD® is a purely mechanical modification wherein bioresorbable apatitic grit is sprayed at high velocity against the implant surface to achieve the desired level of texture. Multiple parameters can be adjusted, such as particle size and spray distance, to allow for a fully customizable surface treatment suited to a specific implant’s design.
Master Device File MAF1239 Volume II and III have been established at the US Food and Drug Administration (FDA) for MATRIX MCD®
- Volume II – Apatitic Calcium Phosphate Grit Blasting Of Dental And Orthopedic Implants
- Volume III – Manufacturing Of Calcium Phosphate Grit (MCD) For Grit Blasting Of Dental And Orthopedic
- Implants