After successfully winning the OE-A Award in the category “Best Prototype & New Products” together with technology partner PalmSens at LOPEC 2025, Lohmann is providing exciting insights into the development of innovative health patches. The team at the Health Patch Technology Center is pursuing the goal of opening up new business opportunities through advanced technologies. The cooperation with PalmSens marks an important milestone in this regard. We talked to Dr. Christian Weisenstein about the development and future of these innovative patches.
Editor: Dr. Weisenstein, you are playing a major role in the development of health patches. What exactly are you working on?
Dr. Christian Weisenstein: I am a Senior Engineer in the Health Patches Project House and I work on the development of designs, experimental designs and test methods for functional products and prototypes. I also advise customers in development projects, particularly on the implementation of innovative applications for health patches.
Editor: What applications are you focusing on?
Dr. Christian Weisenstein: Health patches are used in a variety of areas, such as glucose monitoring, heart rate measurement or determining the ovulation cycle. Our current project is based on impedance spectroscopy, a technology for measuring electrochemical processes in the body. For example, it can be used to distinguish adipose tissue from water tissue.
Editor: What role does PalmSens play in this project?
Dr. Christian Weisenstein: Since Lohmann is focusing on the development and production of the patches, we need a specialized partner for the measuring device. We got in touch with PalmSens at Medica 2023. This resulted in a close cooperation that led to a joint product development.
Editor: How were the tasks distributed within the collaboration?
Dr. Christian Weisenstein: PalmSens developed the Sensit Wearable and Lohmann was responsible for the impedance spectroscopy patch, sample production and the development of the production process. PalmSens currently markets the product as part of a kit to customers such as medical device developers and universities.
Editor: What were the biggest challenges?
Dr. Christian Weisenstein: In addition to technical aspects such as skin compatibility and precise measurement methodology, the tight schedule was a challenge. Only a few months passed between the initial contact at Medica 2023 and the production of the first samples in May 2024. Thanks to efficient communication and good cooperation, we were able to achieve this ambitious goal.
Editor: What does this project mean for Lohmann?
Dr. Christian Weisenstein: It was an important milestone because this project allowed us to demonstrate our expertise along the entire value chain and to position ourselves as a strong partner for customers in the medical technology industry. Our platform approach and a wide range of Lohmann-owned products allow us to implement various applications quickly and efficiently using a modular design.
Editor: How is the project currently being received in the market?
Dr. Christian Weisenstein: The response has been very positive. Our technology enables our customers to carry out tests at an early stage and develop new products. Thanks to the partnership with PalmSens, we have already been able to establish valuable contacts with other potential customers.
Editor: What prospects have opened up since winning the OE-A Award?
Dr. Christian Weisenstein: The award confirms our platform approach and increases our visibility in the industry. This opens up opportunities for new collaborations and further growth in the field of digital health solutions.
Editor: How do you see the future of health patches?
Dr. Christian Weisenstein: Today, applications focus on monitoring a few selected vital parameters. In the long term, advanced biosensory functions and combinations for multi-parameter analysis will become increasingly important for further expanding the range of possible applications and the benefits for patients.
Editor: Thank you very much for the interview and good luck for the future!
