HSPA Surgical Instrument Tray Assembly Flashcards

What material are most surgical instrument containers made from?

Answer: Rigid anodized aluminum or stainless steel with filtered vent ports

Rigid sterilization containers are typically made from anodized aluminum or stainless steel with replaceable filter retention plates. These materials withstand repeated sterilization cycles, protect instruments during transport and storage, and allow sterilant entry through filtered ports. The rigid design provides superior protection compared to wrapped trays.

How should power instruments (drills, saws) be prepared for tray assembly?

Answer: Disassemble per manufacturer IFU, clean each component, inspect for function and damage, and place in designated positions with attachments organized separately

Power instruments must be disassembled per manufacturer instructions for adequate cleaning and sterilization of all components. Each piece must be inspected for function, battery charge (if applicable), and damage. Components are placed in designated positions within specialized trays that protect moving parts and allow sterilant access to all surfaces.

What is the function of filter retention plates on rigid sterilization containers?

Answer: To hold disposable filters in place that allow sterilant to enter during sterilization while maintaining a microbial barrier during storage

Filter retention plates secure disposable or reusable filters that serve as the sterilization and storage barrier for rigid containers. The filters are porous enough to allow steam or EtO gas to penetrate during sterilization but fine enough to prevent microorganism entry during post-sterilization storage and transport.

What documentation should accompany a completed instrument tray?

Answer: At minimum: the tray identification, contents verification signature, date of assembly, sterilizer load number, and expiration date if applicable

Complete documentation enables traceability and quality assurance. The tray identification links to the count sheet, the assembly verification signature confirms the correct contents, the sterilizer load number enables recall if a sterilization failure is detected, and the expiration date (if event-related) or date helps manage sterile inventory.

Why is it important to place instrument tips in a downward position within the tray?

Answer: To protect delicate tips from damage by resting them on a protective surface rather than other instrument bodies, and to facilitate drainage during sterilization

Placing instrument tips downward protects them from damage caused by the weight of overlying instruments and allows condensate to drain away from instrument joints and lumens during sterilization. Upward-facing tips can collect condensate pools that prevent sterilization and contribute to wet packs.

What is the correct procedure for handling a tray that has a wet pack after sterilization?

Answer: Consider the tray non-sterile, document the wet pack event, investigate the cause, reprocess the entire tray from cleaning through sterilization

Wet packs are considered contaminated because moisture provides a pathway for microorganisms to wick through the packaging barrier (strike-through). The tray must be treated as non-sterile, fully reprocessed, and the wet pack event investigated to identify the root cause (overloading, improper cycle, malfunctioning sterilizer, etc.).