Sim4Life V9.2 Desktop Release
December 9, 2025The Sim4Life Team is pleased to announce the release of Sim4Life V9.2, featuring new capabilities, numerous bug fixes, and platform-wide enhancements for even better performance and usability.
Key highlights of the new release include:
- Advanced third-generation anatomical modeling with AI-powered tools that generate solver-ready models directly from MRI/CT scans.
- New Broadband Skin Model enabling absorbed power density (APD) evaluation for regulatory compliance and device safety assessments across the 10-110 GHz frequency range.
- New Deep Brain Stimulation (DBS) / Stereoelectroencephalography (sEEG) electrode generator, supporting streamlined model creation for neurostimulation applications.
- Upgraded ViP models (Duke, Ella, Fats, Billie, Thelonious, and Yoon-sun), now featuring more realistic articulation geometries, including extreme postures.
Broadband Skin Power Absorption Model – mmWave Compliance
Sim4Life V9.2 offers a highly efficient implementation of the latest broadband skin model, recently published [Christ et al. (2025)] and adopted by IEC/IEEE standards. It enables determination of absorbed power density for any device operating at frequencies between 10 and 110 GHz, across all use cases and human models.Sim4Life V9.2 was used to simulate a 28 GHz smartphone antenna in close proximity to a SPEAG Absorbed Power Density (APD) phantom, using the new Human Skin (Coated, mmWave) model. The visualization highlights the realistic interaction of the antenna’s near-field with the coated-skin formulation, showing the spatial distribution of absorbed power density across the phantom surface. The example illustrates how the model captures reflection and absorption at the air/skin interface, enabling accurate and efficient compliance and performance assessments without explicit meshing of the thin-film coating.
Expanded Libraries & Templates
Sim4Life V9.2 introduces a deep brain stimulation (DBS)/stereoelectroencephalography (sEEG) electrode generator a wizard for the rapid creation of parameterized implants used in these technologies. Electrode geometry—including diameter, contact length, spacing, arc angle, segmentation, and tip offset—can be customized interactively or scripted via the Python-based application programming interface. This streamlines the setup of stimulation and recording electrodes, supporting applications from DBS therapy planning to implant safety assessments. By reducing manual modeling effort, the new tool shortens setup time and enhances reproducibility across neurostimulation and implant safety studies.In Sim4Life V9.2, our library of templates now includes two new tools for accelerating electrode development, DBS/sEEG and paddle electrode generators—which allow users to generate designs in just a few clicks, with all aspects of the geometry fully parametrized.
A detailed list of all changes can be found in the Release Notes .
Download
Sim4Life V9.2 is available for download via item 4. Sim4Life Installer, or directly through the Automatic Software Update window in the Sim4Life GUI.
License
Your current license file provided by ZMT remains valid for this version.
We thank you for your valuable feedback and hope this release further enhances your productivity and workflows. For additional feedback or suggestions, please feel free to contact us at s4l-sales@zmt.swiss or call +41 44 245 9765.
The Sim4Life Team
Download
Sim4Life V9.2 is available for download via item 4. Sim4Life Installer, or directly through the Automatic Software Update window in the Sim4Life GUI.
License
Your current license file provided by ZMT remains valid for this version.
We thank you for your valuable feedback and hope this release further enhances your productivity and workflows. For additional feedback or suggestions, please feel free to contact us at s4l-sales@zmt.swiss or call +41 44 245 9765.
The Sim4Life Team