Infusion & Fluid Delivery
IV Administration Set
An IV administration set is a multi-part fluid path where every wetted component is a prolonged-contact device. The design problem is balancing optical clarity at the drip chamber, kink-resistant flexibility along the tubing, and rigid dimensional control at the connectors — while keeping the whole set compatible with a single terminal sterilization route.
Sterilization: Ethylene OxideGammaE-Beam
Component material package
A recommended grade per component, drawn from the Nexeo catalog. Recommendations are engineering assessments; a cited property links the choice to data we hold for that grade.
| Component | Recommended grade | Why |
|---|---|---|
Drip chamber Transparent chamber for visual drop-rate monitoring | Makrolon Rx1805 Polycarbonate (PC) | A clear, rigid PC gives the wall stiffness and optical clarity needed to read the drip rate, and it tolerates EtO and radiation routes used for finished sets. Cited: Light Transmission |
Flexible tubing Kink-resistant fluid conduit | Benvic MED CR 70 Polyvinyl Chloride (PVC) | A flexible medical PVC compound is the incumbent tubing material for prolonged-contact fluid paths and extrudes into thin-wall, kink-resistant tube. |
Luer connector Rigid ISO 80369 slip/lock fitting | Makrolon Rx2530 Polycarbonate (PC) | A higher-flow PC holds thread and taper dimensions at the connector while staying clear for air-bubble inspection. |
Roller clamp housing Flow-control clamp body | Purell RP374R Polypropylene (PP) | A random-copolymer PP gives the living-hinge toughness and creep resistance a roller clamp needs, with broad sterilization compatibility. |
Producer datasheetNexeo Applications Engineering assessmentAwaiting datasheetNot published by producer
Key regulatory requirements
- ISO 10993-1 biological evaluation (prolonged, blood-path contact)
- USP Class VI on fluid-contact grades
- ISO 80369-7 small-bore luer connectors
- DEHP-free fluid path increasingly required by procurement
Engineering watch-outs
- Confirm plasticizer system on the PVC tubing against DEHP-free requirements before specifying.
- Radiation sterilization can yellow PC — validate color shift against the drip-chamber inspection requirement.
- Bond/solvent-weld compatibility between PC connectors and PVC tubing must be validated as an assembly.
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