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Disinfection and Sterilisation Practical Aspects.

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Presentation on theme: "Disinfection and Sterilisation Practical Aspects."— Presentation transcript:

1 Disinfection and Sterilisation Practical Aspects

2 Disinfection and Sterilisation CSSD : Central Sterile Supply Department TSSU : Theatre Sterile Supply Unit HSSU : Hospital Sterile Supply Unit The idea of SSU was conceived in the late 1940’s and it began to catch on in the 1950’s in the UK. After a slow start in Ireland there is now a professional body and specialist courses are available.

3 Disinfection and Sterilisation Functions of SSU: Rinsing Cleaning Drying Inspection and assembly Packaging Labelling Sterilisation Storage Distribution

4 Disinfection and Sterilisation Main objectives of SSU: To provide medical and surgical equipment that is safe to use. To maintain records of processes used and instruments processed. To relieve the Nursing staff of these duties. To avoid duplication of expensive hospital equipment. To maintain an inventory of supplies and equipment. To provide a safe environment for patients and staff To keep up to date with developments and advances.

5 Disinfection and Sterilisation The SSU should: assume total responsibility for processing hospital items. Maintain an educational programme in relation to certain aspects of infection control. Maintain a cost effective programme of instrument management.

6 Disinfection and Sterilisation Management Structure of the SSU: Head of Facility CSSD Manager Shift Supervisors CSSD Personnel

7 Disinfection and Sterilisation Other options: Single use items. Purchased sterile packs. Contracted service. Central facilities supplying many hospitals.


9 Disinfection Byline: A. Das, P. Ray, M. Sharma Dear Editor, Endoscopy is a very frequently performed diagnostic and therapeutic interventional modality. Recently, it has been reported that up to 270,000 infections (in 2.7% of procedures) are transmitted annually by flexible endoscopes in the USA. There have been > 500 reports of infections due to use of contaminated endoscopes, commonly by Pseudomonas aeruginosa, Salmonella spp., Mycobacterium tuberculosis and atypical mycobacteria. Recommendations for reprocessing of endoscopes have been established worldwide, but lack of compliance is rampant in 20-70% of centres in Europe, Australia and Asia. Compliance is also very poor in Japan, India (only 1/3 of 133 centres practised minimum disinfection), Western Europe (inadequate disinfection in ≥30% centres) and USA (inadequate disinfection of 23.9% of endoscopes). International recommendations for endoscope reprocessing is a stepwise process; pre-cleaning …

10 Disinfection Endoscopy: There are many kinds of endoscope: Some of these require and can withstand sterilisation eg rigid arthroscopes. Others which are flexible and may have a number of lumens, such as bronchoscopes, colonoscopes, gastroscopes, duodenoscopes, and sigmoidoscopes require a high level of disinfection but cannot withstand sterilisation.. This involves thorough cleaning and exposure to a suitable chemical. At present this is usually peracetic acid. (Used to be glutaraldehyde. Newer agents include chlorine dioxide.)

11 Disinfection Specialised endoscope washer/disinfectors. Are enclosed to reduce noxious vapours. Can accommodate any scopes. Can flush out the different channels. Ensure sufficient contact time with disinfectant. Rinse with water. Should record both cycle and scope.

12 Disinfection Endoscope Dryer/storage cabinets: Once the endoscope has been disinfected it requires to be stored in a way so as to avoid contamination. Firstly, this means drying the scope and then storing it so that no microbes can reach it. Modern cabinets are designed to store scopes safely for up to 72 hours. Otherwise the scopes require retreatment

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