A company with a requirement for a unique design of syringe for delivery of their novel product asked plastic injection moulding specialists Sovrin to conduct a DFM, manufacture mould tools and provide volume injection moulding and assembly.
Project:
- Specialised design called for more challenging polymers and tool design
- Capability for sterilisation by ETo
- Total oxygen barrier required for drug compatibility
- Zero draft in syringe bore
- Tight tolerances
- Flow patterns studied by Moldflow to overcome difficulties created by product design
- Soft-touch overmould required
- Functional seal feature to be overmoulded
Outcome:
- Suitable specialist polymer identified and successfully tested
- Tool design proved by capability studies & verification protocols
- Results of Moldflow analysis incorporated into tool design
- Elastomers compatible with overmoulding identified and successfully tested
- Product developed to clinical trial readiness