Central sterile services department (CSSD)

The central sterile services department (CSSD), also called sterile processing department (SPD), sterile processing, central supply department (CSD), or central supply, is an integrated place in hospitals and other health care facilities that performs sterilization and other actions on medical devices, equipment and consumables; for subsequent use by health workers in the operating theatre of the hospital and also for other aseptic procedures, e.g. catheterization, wound stitching and bandaging in a medical, surgical, maternity or paediatric ward

What is the use of CSSD?

The services of CSSD includes collecting, sorting, cleaning, disinfecting, drying and assembling instruments; preparation of linen items; packaging, sterilizing, storing and issuing sterilised trays and boxes; quality monitoring, and record keeping.

Why CSSD is important in hospital?

The CSSD plays a vital role in patient safety and in reducing hospital surgical infection. From an infection control perspective, it is essential to ensure that proper disinfection of surgical equipment is performed.

What is the basic of CSSD?

The treatment process of the CSSD for medical devices specifically includes recycling, classification, cleaning, disinfection, drying, testing and maintenance, packaging, sterilization, storage, and distribution. Cleaning, sterilization, and packaging have direct effects on patient safety.

Which equipment is used in CSSD?

Various articles including linen, dressings, surgical instruments and trays are sterilized in the CSSD. Sterilization is done by steam sterilization and gas sterilization with a total of seven autoclaves and two ETO machines. Physical, chemical are regularly used during the process of sterilization.

What are the 4 zones of CSSD?

Sterile processing departments are typically divided into four major areas to accomplish the functions of decontamination, assembly and sterile processing, sterile storage, and distribution.


  • Disassembly & decontaminating used surgical instruments and other medical devices
  • Operating and maintaining special decontamination equipment like automatic washers/disinfectants, ultrasonic cleaners
  • Inspecting decontaminated items to make sure they are clean
  • Assembly
  • Utilize PPE’s to protect self from acquiring harmful microorganisms

Sterilization and storage

  • Assembly & wrapping of cleaned and decontaminated instruments
  • Sterilizing assembled trays of instruments in appropriate sterilizers
  • Precisely operating and monitoring special sterilization equipment like autoclaves
  • Keeping detailed records of number of sterilized items, including Autoclave cycle numbers, lot/batch numbers, expiration dates for future tracking of items that has been sterilized, and stored


  • Stocking crash carts
  • Organizing sterilized medical supplies
  • Ensuring that sterile supplies do not become outdated / preventing event related sterility issues
  • Delivering sterile supplies where they are needed and picking up dirty ones

Tuesday, 18 July, 2023



Basics on Processing & Sterilization

Please Check out file at the following link

Personal protective equipment

Cleaning Special Care Areas

General Cleaning Strategies for Patient-Care Areas – Cleaning Housekeeping Surfaces

General Cleaning Strategies for Patient-Care Areas – Cleaning of Medical Equipment

Cleaning Strategies for Spills of Blood and Body Substances