Company Profile Your Partner for Central Sterilization Accessories Interlock Medizintechnik GmbH has 20 years’ experience as a manufacturer and developer of consumer goods for the CSSD. Interlock Medizintechnik GmbH is supplying sterile supply container accessories such as container filters, seals and documentation labels of supreme quality at low prices. Customised designs can be supplied also in small quantities, in particular indicator labels with steam indicators, EO and FO-indicators. Cleaning brushes, instrument protective caps, indicator adhesive tapes, mesh basket labels, silicone tubes and much more round off the CSSD product range.