Functional role
Senior UX designer
Scope
Two therapy devices
Team
Junior designer · Customer
Responsibility
End-to-end experience
Overview
Zimmer MedizinSysteme is a global leader in physiotherapy, rehabilitation, and cryotherapy. I redesigned the UI for two of their therapy devices — OptonPro and ThermoTK — first as the sole designer, then with a junior, modernising outdated interfaces for clinical environments across multiple screen sizes.
Problem
Designing clarity into clinical interfaces - where distance, density, and safety all compete.
Approach
From cluttered and dated to clinical-grade clarity redesigning two therapy devices from the ground up.
01
Readability vs. touch targets
Fixed screen and a non-negotiable feature list - I balanced font legibility at distance against safe touch target sizes through iterative testing.
02
Contextual help design
Structured and redesigned the inline help system so clinicians could read device status without it competing with primary controls.
03
Scalable UI system
Designed all assets to work across two screen resolutions - ensuring the interface scaled consistently across both devices without needing separate design versions.
The redesigned interfaces shipped across OptonPro and ThermoTK, bringing clinical-grade clarity to both devices.
It was adopted the same UI foundation for additional products in the portfolio - validation that the system was scalable and the right direction for the brand.
Design highlights
