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Disinfection and Sterilization: Controlling Hospital-Acquired Infections at the Source
Release time：2015-05-28
To patients, the term “Central Sterile Supply Department” may sound somewhat unfamiliar; however, for any hospital, it is an indispensable and vital department. Its role is akin to that of the liver in the human body: every day, numerous rigorously sterilized instruments and supplies are dispatched from here to the hospital’s various clinical departments, ensuring their smooth and uninterrupted operation.
The Central Sterile Supply Department is a specialized unit within the hospital that operates discreetly behind the clinical front lines. It is responsible for the cleaning, disinfection, and sterilization of all reusable medical devices, instruments, and supplies, as well as the supply of sterile items, thereby providing essential support to clinical departments and ensuring patient safety. Often referred to as the “liver of the hospital,” the quality of its operations is closely linked to the hospital’s infection-control efforts.
“The Central Sterile Supply Department is a critical support system for frontline clinical operations, a key department in hospital infection management, and the core unit responsible for sterilization and supply services. The quality of its work directly impacts the quality of medical and nursing care, affects hospital infection control, and is essential to patient safety.”
The supply room has also introduced a batch of advanced disinfection and sterilization equipment, such as Autoclave —including multi-chamber washer-disinfectors and hydrogen peroxide sterilizers—have significantly enhanced the supply room’s service reliability and disinfection/sterilization capabilities. In the little over a month since they were put into operation, the steam-pressure sterilizer alone has already processed nearly 700 sterilization cycles.
While significant improvements have been made to the environment and equipment, the Central Sterile Supply Department has also further refined its standardized management through enhancements in staffing, training, and institutional procedures, thereby comprehensively elevating the level of sterilization and supply services.
Reusable instruments returned from clinical departments such as the operating room and patient wards are first sent to the decontamination area, where they undergo single-chamber or multi-chamber cleaning and drying before being transferred to the inspection, packaging, and sterilization area. Here, staff classify and package all instruments according to their specific purposes. Instruments for different applications are packaged using distinct methods and materials; for example, instruments packaged in double-layer green cotton cloth are designated as surgical-suite-specific instrument packs, while those wrapped in white cotton cloth are labeled as ward treatment packs. “The purpose of this approach is essentially to affix a label to each type of instrument pack based on its intended use, making it easier for clinical departments to distinguish between them when issuing supplies.”
In the Central Supply Department, medical devices undergo a seamless, non-crossing, and unidirectional workflow—from initial decontamination and sterilization to final re-sterilization and readiness for use. After a pair of scissors is used by a physician, it first enters the decontamination area of the supply department for thorough cleaning, followed by processing in a multi-chamber washer-disinfector that performs washing, disinfection, and drying. The instrument then moves to the manual workstations in the inspection and packaging area, where staff meticulously inspect the quality of cleaning and the degree of shine. Only scissors that pass these inspections are selected for packaging.
Based on the surgical team’s workflow and procedure requirements, supply-room technicians categorize routine instruments into specialized surgical instrument packs. In this case, the scissors and other instruments are carefully packaged in a dedicated instrument tray, with sterilization-indicator cards placed inside. The pack is then subjected to high-temperature sterilization, and a biological indicator for monitoring sterilization efficacy is affixed to the exterior. Upon completion of sterilization, staff verify that all sterilization parameters meet standards; only scissors that pass inspection are deemed “reborn” and may be returned to service.
Instruments that are unsuitable for high-temperature sterilization are sent to the low-temperature sterilization room for disinfection. All items selected for low-temperature disinfection must be thoroughly cleaned and dried, and properly packaged before disinfection and sterilization can proceed. Upon completion of sterilization, personnel must immediately pass through an interlock door into the sterile storage area and are prohibited from lingering in the low-temperature room; throughout this process, staff must also record all relevant data completely and accurately.
There are no small matters in healthcare; true excellence lies in the details. Sound foundational management is a critical safeguard for hospital medical quality, and a state-of-the-art, well-organized, and efficiently operated central sterile supply department serves as a microcosm of a hospital’s progress toward modernization and standardization.
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