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    Merken
    Figure 1: View of the tunnel with the emitters (all figures provided by the authors).

    Ebeam surface sterilization of ready-to-use units

    Technik

    Aseptic filling of nested prefilled syringes in the isolatorMicrobiological problems and requirementsTechnical solution: ebeam tunnel transfer systemGeneration of electron beams in the ebeam tunnelOperating principle of ebeam for surface sterilizationProcess sequence in the ebeam tunnelSpecial features of the air flow in the ebeam tunnelRegulatory requirementsQualification of an ebeam tunnelAlternatives to the ebeam tunnel and system comparisonsFurther development and outlookConclusion
    Keywords: Electron Beam |  Aseptic filling |  Irradiation |  Surface Sterilization |  RTU 

    Abstract

    The demand for ready-to-use syringes, vials and cartridges (also known as RTU or ready-to-use units) for the aseptic filling of sterile pharmaceutical products has increased significantly in recent years and is forecast to continue to grow at an average annual rate of 8.74 % over the next 10 years [1]. It is of crucial importance that these sterile packaged units are aseptically introduced into cleanroom class A conditions, where filling then takes place. In order to fulfil the regulatory requirements and to be able to use a continuous process at a sufficiently high speed, ebeam technology is the ideal solution. During the transfer process, the ebeam achieves a significant germ reduction of around 12 log levels, meaning that the process can definitely be described as surface sterilization. The combination of ebeam tunnel and downstream filling line isolator provides an overall aseptic concept that fully complies with the requirements of Annex 1 of the EC GMP guidelines and with which the highest possible Sterility Assurance Level (SAL) can currently be achieved.

    Dr. Timo Krebsbach and Manfred Holzer · SKAN AG

    Correspondence:

    Timo Krebsbach
    SKAN AG, Kreuzstr. 5, 4123 Allschwil
    timo.krebsbach@skan.ch

    Dr. Timo Krebsbach
    looks back on 22 years of professional experience in various positions in the pharmaceutical industry: Head of Microbiological Quality Control, Head of Marketing & Sales, Managing Director of a GMP contract laboratory. Since Jan 2024, he has been working as a Strategic Product Manager at SKAN, where he is responsible for decontamination systems. In addition to his own publications, he is the editor of the 3 books “Reinraum in der pharmazeutischen Industrie”, “Reinigung und Desinfektion im