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Hygiene

Hygiene aspects in dialysis

Disinfection can be based either on physical or on chemical methods. It is also possible to combine these two methods, a procedure which is often used in treatment machines and dialysis systems.

In dialysis, alongside bactericidal efficiency, the “limited spectrum of virucidal activity” is of particular interest with regard to disinfection. Hepatitis B, hepatitis C and HI viruses are enveloped viruses, which can be inactivated more easily than non-enveloped viruses (e.g. polioviruses). The hygiene commission at the German Robert Koch Institute recommends that products which are demonstrably able to inactivate surrogate viruses can be considered to have a “limited spectrum of virucidal activity” and are therefore effective against enveloped viruses¹.

The spectrum of virucidal activity
Test viruses to declare “limited spectrum of virucidal activity”^1,2	Bovine Viral Diarrhoea Virus (BVDV) Vaccinia virus (Elstree strain or MVA)
Test viruses to declare “virucidal”^1,2	Adenovirus (adenovirus type 5, adenoid 75 strain) Papovavirus (simian virus 40 [SV40], 777 strain) Poliovirus (poliomyelitis vaccine strain type I, LSc-2ab strain) Murine Norovirus (MNV), strain S99
Test virus to declare “virucidal” according to DIN EN 14476³	Poliovirus type 1, adenovirus type 5, murine norovirus; at disinfection temperatures of more than 40°C: Murine parvovirus, Crawford strain

Prophylaxis and quality assurance

Biofilm prevention instead of reaction

ISO 23500:20144 requires regular prophylactic disinfection of the reverse osmosis unit and the permeate ring main to minimise the formation of a biofilm.

Suitable regular disinfection measures are chemical or hot water. Ideally, the measure to be used should already be determined in the planning phase of a dialysis unit.

Quality assurance

To meet the requirements of a quality management system, the chemical and microbiological quality of permeate, dialysis concentrate and dialysate must be monitored regularly.

Cleaning and disinfecting system hydraulics

In order to prevent microbiological loads, the hydraulics of the dialysis systems must be disinfected after each treatment.

In addition, dialysis systems should be subject to a regular cleaning programme to remove organic components.

The surface disinfection of medical devices

In dialysis, there is a high risk of the transfer of microorganisms, caused by contact with contaminated surfaces. The outside surfaces of a dialysis system may be contaminated, therefore requiring disinfection measures.

Attention

Hygiene

Hygiene aspects in dialysis

Prophylaxis and quality assurance

Biofilm prevention instead of reaction

Quality assurance

Cleaning and disinfecting system hydraulics

The surface disinfection of medical devices

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Attention

Hygiene

Modern products and efficient procedures for hygiene management

Hygiene aspects in dialysis

Hygiene management

Prophylaxis and quality assurance

Biofilm prevention instead of reaction

Quality assurance

Cleaning and disinfecting system hydraulics

The surface disinfection of medical devices

Related content

Request a sales meet, demo or brochure by using this contact form

Share: