Medical
LEM Surgical: Robotic-Guided Surgery HMI in Qt
For LEM Surgical AG, we designed and built the complete HMI software for Dynamis, a multi-arm, robotic-guided surgical system for soft-tissue procedures. Two Qt C++ applications, two years, one FDA Class II clearance.
About the client
COMPANY NAME
LEM Surgical AGLOCATION
Bern, SwitzerlandLEM Surgical AG is a Swiss medical device company based in Bern, developing Dynamis, a robotic-guided surgical system for soft-tissue procedures. The system operates multiple robotic arms and a sensor and vision setup under direct surgeon planning and control, an approach with no established equivalent on the market.
The challenge
Dynamis wasn't an upgrade of an existing surgical system, it was a different approach to soft-tissue surgery altogether: multiple robotic arms and a sensor and vision system operating under the surgeon's direct plan. No existing UX pattern fit that.
- No reference point. Every interaction had to be designed from scratch.
- Validation beyond a screen. Testing went up to cadaver-based sessions, not just usability checks.
- A hard endpoint. Two years, ending in a code freeze that supported LEM Surgical's FDA Class II submission.
Meeting that bar meant rethinking not just the interface, but how we worked with LEM Surgical to build it.
The solution
We handled UX/UI design and full Qt QML implementation for two applications: the primary planning and operating interface, and a separate cart-control application. Design started in Figma and moved through incremental cycles tested against real surgeon feedback. Implementation included custom rendering for the system's real-time sensor, camera data as well as integration with volume rendering engine, ending in a codebase freeze timed to LEM Surgical's regulatory submission.
What we delivered
A workflow with no existing product to copy
Every interaction was designed from scratch for a multi-arm, robotic-guided system, not adapted from an off-the-shelf HMI.
Complete UX/UI design system in Figma
Full interaction design covering arm control, sensor status, and procedure planning, built from zero since no existing pattern applied.
Two production applications
Primary planning and operating interface, plus a separate cart-control application. Both coded in C++, Qt and QML, shipped and in use, not prototypes.
A codebase stable enough for regulatory submission
Delivery ended in a freeze precise enough to support LEM Surgical's own FDA Class II submission.
Customer's testimonial
Our collaboration has been seamless and dedicated, and we can confidently recommend Somco Software as experts in Qt software development. Matvey Rzhavskiy, Software Director, LEM Surgical AG
Now let's talk about your project
Building a device that doesn't fit an existing UX pattern? We design and build medical-grade HMI software from scratch, backed by ISO 13485 and real regulatory delivery experience. Book a call.
Lukas Kosiński
Chief Executive Officer