Schivo entered into a partnership with Stratasys in 2015 and invested in 3D FDM (Fused Deposition Modelling) additive printing technology. FDM allows us to create complex durable geometries. The technology works by building up layers of heated and extruded thermoplastic filament into highly accurate complex structures. Depending on the desired outcome a secondary material can be used to support negative angles and voids during the manufacturing process. This support material is removed after the final product is finished. FDM 3D printing is ideal for the medical device sector as it allows us to print bio-compatible materials such as ABS-M30I and polycarbonate ISO.
Schivo work with a range of different materials to offer our customers the best solution for their device or component needs.
The below table outlines the different plastic materials that we can build with on our Fortus 400mc 3D large production system.
|Materials||Layer Resolution||Tensile Strenght||Unique Properties||Medical Application|
|ABS-M30||0.127mm||31 MPa (XZ Axis), 26 MPa (ZX Axis)||Most versatile & widely used FDM material.
Concept models for sample catheter handles.
Casing for medical equipment outside the body.
|ABSi||0.127mm||37MPa||Translucent Material.||Concept models.
Any application where light transition or flow requires monitoring.
|40 MPa XZ axis
30 MPa ZX axis
High tensile & flexural strength and a moderate heat resistance.
Device or instrument casing outside the body.
|Nylon 12||0.177mm||32 MPa XZ axis
28 MPa ZX axis
High elongation at break: +30%, high toughness and excellent fatigue resistance.
Lowest water absorption at approx 2% at saturation.
Good chemical resistance.
Catheter handles, electrical insulation, repetitive snap-fit closures.
High in heat deflection (190oC).
Chemically resistant to petroleum products, solvents and other caustics.
Concept models for devices or implants that require strength and equipment casing outside the body.
|ABS-M30I||0.127mm||31 MPa (XZ Axis), 26 MPa (ZX Axis)||
ABS-M30 properties + ISO10993.
Sterilize via gamma or EtO.
Contact with body skin.
Ideal for surgical concept models.
Medical device casing.
Best of PC properties + IS0 10993 certification.
Sterilize via gamma or EtO.
Contact with body skin.
|ULTEM 1010||0.254mm||64 MPa (XZ Axis), 42 MPa (ZX Axis)||
Lowest CTE (of any FDM thermoplastic).
High strength-to-weight ratio and FST.
Offered in a certified grade (for food contact & biocompatibility.)
Surgical devices and instruments.
For prototype parts customers generally use ABS-M30 or ASA.
Some customers who are looking for a very strong material might want to use next generation ULTEM 9085 thermoplastic. These materials have an excellent strength to weight ratio and have an outstanding thermal and chemical resistance, however customers will have to compromise resolution for strength.
We can organise printing on materials other than plastic, for example on different types of metal such as maraging steel, cobalt chrome, stainless steel, titanium and nickel alloy.
If you are looking for a Biocompatible part we recommend printing with ABS-M30I, PC-ISO or ULTEM 1010. ULTEM 1010 has the highest chemical resistance, tensile strength and heat resistance however resolution is compromised for strength.
Can inserts be staked or added during an FDM build?
Washers, nuts, bolts, threaded rods or other objects can be inserted mid build by technicians without secondary operations.
What are the benefits of additive manufacturing for medical devices?
We understand that time and money are often critical when developing a new device. This process eliminates the time required to build tools to produce prototypes which allows us to offer our customers very fast turnarounds and therefore is an ideal solution for prototyping.
- Complex finishes
Materials such as photopolymers can accurately mimic human tissue, calcification and bone structure.
- Removes conventional machining constraints
This can enable new innovative design which allow you to reduce the size and streamline a device.
4. Functional Integration
Allows you to prove and test performance of your device during the development stage.
What are the Advantages of Additive Manufacturing with Schivo
Schivo combine over 20 years experience building medical devices and life science systems with additive manufacturing capabilities to ensure your device/instrument concept incorporates the appropriate applications and best practices for the industry.
Facilities are ISO13458 certified with S21Lean operations program and have Class 10K/ISO7 cleanrooms available
2. Post processing capabilities
- Deburr / Removal
- Cleaning Facility
- Mag Particle & Die Penetrant Testing
- Sealant capabilities
3. Design for manufacture
We can design for manufacture to determine the most cost-effective fastest method to ramp your product concept.
4. In house capabilities for full product build and test
Customers can choose from our in-house capabilities from machining, fabrication, coatings and assembly to build and package your device or subassembly ready to ship. The manufacturing process is supported by full or subsystem test and verification activities.
Connect with us
Please fill out the below if you have a device, instrument or sub-component that you would like additive manufactured to discuss with a member of our additive engineering team;