Molded Pulp Medical Device Trays: Clean, Sterilizable, and Traceable
Surgical instruments and diagnostic devices demand packaging that survives ethylene oxide or radiation sterilization, keeps contents sterile, and carries lot traceability. Molded pulp trays meet the mechanical demands while staying disposable and burnable.
The Scenario: A clean, sterilizable cradle for a surgical instrument set
A diagnostic device maker needed a tray for a 12-piece instrument set used in point-of-care labs. The existing thermoformed plastic tray could not survive their EtO sterilization cycle without warping, forcing a secondary loading step.
Pain Points
- Thermoformed plastic warped at sterilization temperatures;
- Mixed-material trays complicated hospital waste segregation;
- Lot numbers had to be added after sterilization, risking labeling errors.
The Solution: Pulp that takes the full sterilization cycle
The tray was formed in high-density molded pulp with smooth, lint-free surfaces. It passed EtO sterilization with no distortion, and lot codes were molded directly into the tray during forming:
1. Sterilization compatibility High-density pulp holds its shape through EtO and gamma cycles within validated parameters.
2. Molded-in lot traceability Lot and part numbers are formed into the tray surface, surviving sterilization without labels.
3. Clean incineration path Used trays burn cleanly in hospital waste streams, cutting red-bag volume.
The Result: One tray from sterilizer to bedside
The device maker eliminated the secondary loading step, and the molded-in lot code removed a labeling failure point. Hospital waste audits showed a 14% drop in plastic packaging weight in the same department.