What does the hourglass symbol represent on commercially-sterilized products?

The hourglass symbol on commercially sterilized products indicates a "Use by date." This symbol is important as it provides crucial information regarding the safety and efficacy of the product. The use by date signifies the timeframe during which the product can be safely used and is expected to maintain its sterility and effectiveness. Once this date has passed, the manufacturer can no longer guarantee the safety and reliability of the product, which is vital for ensuring patient safety in medical settings.

It is essential to understand this symbol as it helps healthcare professionals know when a product should no longer be used, thereby helping to prevent potential complications that could arise from using outdated materials. This contrasts with other terms like expiry and sterilization dates, which may indicate when a product was made or when it should have been used by, but do not carry the same implications for immediate safety and usability.