German specialty chemical substances firm Evonik has launched its new Vestakeep i4 3DF implant grade polyether ether ketone (PEEK) filament into its portfolio of 3D printing supplies.
Having met ASTM F2026 necessities, the trade customary for surgical implant functions, the brand new materials will enable for the manufacturing of 3D plastic surgical implants utilizing Fused Filament Fabrication (FFF) expertise.
“For contemporary medical expertise, the event of our first 3D-printable implant materials opens up new alternatives for customizing affected person remedies,” stated Marc Knebel, who heads the Medical Units & Techniques market section at Evonik. “Orthopedics and maxillofacial surgical procedure are examples of areas the place this may very well be utilized.”
The Vestakeep i4 3DF filament
First introduced in 2018, Vestakeep i4 3DF is the primary PEEK-based filament that can be utilized for implant functions. Earlier supplies akin to KetaSpire PEEK and Radel PPSU had been solely graded for restricted contact medical functions, that means lower than 24 hours of bodily fluid or tissue contact had been permitted, they usually weren’t appropriate for implant functions.
Primarily based on Evonik’s earlier Vestakeep i4 G materials, which was utilized in spinal implants, maxillofacial surgical procedure, and sports activities drugs, the brand new materials shows a excessive biocompatibility, biostability, and x-ray transparency. This makes implantation simpler, each on the surgeon, and on the affected person in follow-up appointments
Developed particularly to be used with FFF expertise, the high-performance polymer was produced in cleanroom circumstances, making it excellent for surgical functions. Wound onto both 250 or 500-gram spools, and with a diameter of 1.75mm, the natural-colored filament is appropriate for direct use in customary FFF 3D printers for PEEK supplies.
Evonik will even provide a testing-grade model of the PEEK filament, which shares the identical processing properties because the implant-grade materials, however with out the certification required for medical functions.
Evonik’s new pure coloured filament is accessible on 250g and 500g spools. Picture through Evonik.
Surgical functions in 3D printing
Whereas PEEK supplies haven’t been used to create medical implant gadgets earlier than, they’ve been used extensively in different medical functions.
German 3D printer and supplies producer Apium Additive Applied sciences introduced in November 2018, that it had efficiently used Evonik’s Vestakeep i4 G materials to make implants and gadgets for the cranium and hand. Utilizing its M220 3D printer, Apium Additive produced implants that may very well be utilized to the pinnacle, cranium, neck, face, or jaw, with the potential to deal with different accidents and infections as nicely.
German medical 3D printing startup Kumovis, launched its first 3D printer, the R1, in August final 12 months, which was designed to fabricate patient-specific medical gadgets and prototypes utilizing high-performance plastics akin to PEEK. Utilizing an non-obligatory filter with the 3D printer prevents overseas particles from getting into the construct chamber. This creates an identical impact to the institution of a clear room, an surroundings usually required for medical analysis functions.
FossiLabs, a US-based medical 3D printing start-up, additionally used PEEK supplies to provide porous 3D printed bone-like scaffolding constructions. Using FossiLabs’ proprietary , the bone-like constructions are designed for use to profit current implantable gadgets, the place bone development could also be desired.
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Featured picture reveals Evonik’s newly launched implant grade PEEK filament. Picture through Evonik.
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