Wirthwein Medical GmbH & Co. KG products

Primary packaging material and cleaning container for contact lenses. Based on an idea from our customer, we were commissioned with the design and implementation of a multi-part system for secure storage and cleaning of contact lenses. In accordance with all requested functional, purity and compatibility requirements, we took over the complete development, design, toolmaking, manufacture and component assembly in our in-house ISO 7 clean room. Thanks to the correct material selection, the characteristics of the processed plastics are optimally matched to the application as primary packaging material. Special attention was paid here to the prevention of interactions of the contact lens holder with the cleaning liquid and the contact lens. Optional coloring of the storage trays make distinguishing the individual lenses easier for the contact lens wearer.

The particular challenge for the miniaturization consists of scaling functionality to smaller dimensions without compromises and in doing so guaranteeing a high level of patient safety and reliability at the same time. As specialist for clean room precision applications in medical technology, we develop and manufacture customer-specific injection molded micro molded parts with the tightest tolerances and high requirements for the process stability of our series production. Using design optimization, fill simulations, plastic-compliant tool design and special competence for the selection of the correct polymer material, we succeed in minimizing tolerances. At the same time, we meet the increasingly more complex functional requirements of our customers.

Dialyzer basic components made of plastic. We have been a development partner and supplier of a worldwide leading dialysis products company for many years. We manufactured the basic components from plastic for the dialyzer, the core of hemodialysis, on behalf of our customer. As the body weight has direct influence on the blood volume to be cleaned, the volumes of the dialyzers vary and at the same time also the diameters of the tubes and flanges. The particular challenge here was compliance with the high quality requirements with regard to the functionality and purity of our components. All components are manufactured using injection molding on multiple series tools with a total of nine machines. Thereby, multi-axis robots and linear handling systems are used that take over the completely automated removal and packaging.