Medthin™ 11 TiNbN
A possible alternative to TiN - in line with existing predicates
Medthin™ 11 coating is known to reduce ion release from implant substrates materials such as CoCr, SS or TAV. The coating is applied with thickness of about 5µm and it has adhesion strength to metal substrates higher than 1.0GPa leading to an improved abrasion resistance when compared with uncoated CoCrMo. Titanium Niobium Nitride (TiNbN) is deposited with latest generation Ionbond technologies showing a polycrystalline cubic structure with a fine and very dense structure, roughness (Ra) values below 0.05µm, ideal for articulating zones. The coating coverage is rather uniform on external surfaces whereas for inner surfaces a Ionbond proprietary technology can be applied in some cases.
Ionbond can currently deliver coating service ”me too” of “Medthin™ 11 TiNbN on Implants” from Europe and Asia using large coating chambers at attractive prices.
Technical data |
|
|---|---|
Material |
Titanium Niobium Nitride |
Applicable on following implant material |
Titanium, TAV, CoCrMo, 316 LVM, all SS |
Technologies |
PVD arc or sputtering |
Color |
Gold |
Thickness, μm |
5¹ |
Hardness, GPa |
24 to 27 |
Phase composition |
Cubic, polycrystalline |
Surface texture, Ra |
<0.05 |
Coating coverage |
Mainly external surfaces |
Masking partial zones or over porous coat |
Possible |
Dissolvability |
Not noticed in serum |
Adhesion strenght, MPa |
>1500 |
Wear (abrasion) resistance, coating against UHMWPE |
>50% |
Porosity density, n/mm² & pore size, μm |
PVD Arc (<500, 1)² |
Reduction of allergic potential (CoCrMo, FeCrNi) |
>98% |
Surface wettability of TiNbN |
Similar to mirror polished CoCrMo |
Thermal oxidation resistance (in air) |
500°C |
Chemical oxidation resistance |
Resistant to PH>7, weaker in peroxide solutions PH<7 |
Resistance to sterilization |
All methods allowed |
Implant applications |
Othopaedic, spine & trauma |