Medical technology

MediziniconMedical technology poses special challenges for its surfaces. The use of instruments and components in contact with the human body is subject to very stringent requirements. The germ-free application of the components is crucial. Cleaners, pure steam and special equipment can be used to clean and sterilise instruments. This enables an economical further use of the material used. However, the cleaning and sterilization process places the surfaces of the instruments, as well as those of the sterilization chambers, themselves under high stresses.

Rouge deposits are also an issue in the area of medical technology.

The use of ultrapure water or pure steam as media in stainless steel systems leads to so-called rouge deposits (surface corrosion) on the surfaces. The failure to remove these coatings in good time may mean that the established specification goal of being “visually clean” can no longer be achieved. It is therefore recommended to remove these rouge deposits at regular intervals.

Digression: Advantages of electropolished surfaces for medical technology

Beilby layer (porous layer)

Grafische Darstellung des Aufbaus der Beilby-Schicht

The mechanical grinding of stainless steel results in the formation of the Beilby layer on the surface. This layer shows porous areas up to a material depth of approx. 20 – 30 µm. This Beilby layer permanently changes the topography, morphology and the energy level of the stainless steel surface. In comparison, electropolished surfaces have a markedly improved functional behaviour.
An explanation of the structure of the porous layer is given in the figure on the right

Microbial growth

Quelle: G. Henkel, J. Rau, B. Henkel, 2015, Topographie und Morphologie funktionaler Edelstahloberflächen, 2. Auflage, expert Verlag, Renningen 2015

Left image: Schematic representation of microbial growth on stainless steel 1.4301 of different surface finishes after cleaning using the CIP method and application with nutrient solution and incubation.


Services for medical technology

HENKEL Steri-Protect method

The formation of deposits in sterilization chambers is due to thermodynamic-chemical reasons. To support your ZSVA (AEMP) staff, we offer you the carefree package according to the Steri-Protect method. Specially developed for the hospital and clinic environment, individual chambers can be refurbished on site during the ongoing treatment operation.

Our Steri-Protect services at a glance:

  • Optimisation of the wetted surfaces
  • Removal of coatings and discolourations
  • On-site processing at the customer’s premises even without major operating restrictions
  • Safety and risk management
  • Use of process chemicals manufactured according to GMP guidelines
  • Process and processing documentation for system requalification
  • Sustainable care with Steri-Care refresh cleaning solutions

Our services for the health of your patients.

Depending on the application area, we offer you a wide range of processing options. Our special services for medical technology in detail:

Benefits for you at a glance

  • Optimised surface properties compared to conventional treatment methods
  • Generation of haptic, non-reflecting surfaces
  • Improved hygiene and cleaning
  • Residue-free removal of deposits and discolouration
  • Improved corrosion resistance and renewed passivity
  • Burr-free surfaces
  • Germ and particle-free
  • Qualified processing procedures with extensive documentation
  • Instruments such as needles, screwdrivers, fixing pins, milling heads, shank rasps, etc.
  • Implants such as stents, bone plates, bone nails, joints, prostheses, etc.
  • Hospital equipment and facilities such as beds, sterilization chambers, load carriers, etc.
  • Stainless steels
  • Duplex steels
  • Nickel and nickel alloys
  • Titanium and titanium alloys
  • Special alloys such as nitinol
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