FOUNDER PERSPECTIVE
For Dr. Sunny Xiaojun Sun, mobility is not theoretical. It is personal.
Before founding BionicM, Dr. Sunny Xiaojun Sun lived the daily realities that prosthetic users know well: the need to move with confidence, manage fatigue, navigate changing environments, and trust the technology beneath them. That experience shaped the questions BionicM set out to answer.
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How should powered assistance respond in real life?
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How can support feel useful without feeling overwhelming?
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How can advanced technology help both users and clinicians with less friction?
BionicM’s design approach began with those questions. It combines Dr. Sun's lived experience as an amputee with his engineering background and clinical input to develop powered mobility that is grounded in real-world use.
For Dr. Sunny Xiaojun Sun, mobility is not theoretical. It is personal.
FOUNDER PERSPECTIVE
Before founding BionicM, Dr. Sunny Xiaojun Sun lived the daily realities that prosthetic users know well: the need to move with confidence, manage fatigue, navigate changing environments, and trust the technology beneath them. That experience shaped the questions BionicM set out to answer.
BionicM’s design approach began with those questions. It combines Dr. Sun's lived experience as an amputee with his engineering background and clinical input to develop powered mobility that is grounded in real-world use.

-
How should powered assistance respond in real life?
-
How can support feel useful without feeling overwhelming?
-
How can advanced technology help both users and clinicians with less friction?
Dr. Sunny Xiaojun Sun
Founder & CEO
BionicM was founded by Dr. Sunny Xiaojun Sun, an amputee, engineer, and graduate of the University of Tokyo. His firsthand experience with limb loss and prosthetic use shaped a different approach to powered mobility: one focused on real-world movement, practical clinical needs, and the confidence users need beyond the clinic.
Predictable Stability
& Patient Safety
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Engineered to improve confidence and reduce uncertainty.
Designed with Daily Life in Mind
Informed by Firsthand Use
Built for Clinical Relevance
Real-world mobility includes transitions, uneven ground, fatigue, confidence, changing pace, and unexpected environments. These daily demands shape how BionicM thinks about support.
BionicM’s perspective is shaped by Xiaojun’s experience as an amputee and long-term prosthetic user, paired with feedback from clinicians and users.
User insight is translated through engineering and clinical collaboration so Bio Leg can support meaningful care conversations and real-world mobility goals.
REAL-WORLD MOBILITY
Better technology starts with better understanding.
Prosthetic technology has to work in places that are unpredictable: sidewalks, stairs, ramps, clinics, homes, offices, airports, and long days on your feet. BionicM approaches design from those realities, not just controlled environments.

USER-DRIVEN DESIGN
Designed by Someone Who Understands
Mobility Differently
BionicM was founded by Dr. Sunny Xiaojun Sun, an amputee, engineer, and graduate of the University of Tokyo. His firsthand experience with limb loss and prosthetic use shaped a different approach to powered mobility: one focused on real-world movement, practical clinical needs, and the confidence users need beyond the clinic.
Mobility happens across changing surfaces, changing speeds, and changing levels of confidence. BionicM designs with those everyday demands in view.
HOW WE THINK
We do not start with technology alone. We start with the person using it.
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Real Environments
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Real transitions
Standing, walking, stopping, sitting, and navigating the unexpected all place different demands on a prosthetic knee. Bio Leg is designed to support users through these moments with intelligent assistance.
03
Real clinical workflows
Technology has to make sense for clinicians too. BionicM keeps fitting, tuning, education, and support in the design conversation from the beginning.


User-Driven Design
Safety Without Compromise
Real-Time Adaptive Power
Practical Daily Performance
Engineered Around
What Matters
The Bio Leg® delivers practical performance where it counts.
Engineering Discipline
Advanced technology is applied with purpose: to support natural movement, predictable behavior, and practical use.
Clinical Collaboration
Clinician feedback helps ensure the technology can be understood, fitted, tuned, and adopted in real care settings.
DESIGN TRANSLATION
Lived experience identifies the challenge.
Engineering turns it into support.
Dr. Sun's experience as an amputee helped define the real-world mobility challenges BionicM wanted to address. His engineering background helped turn those challenges into design priorities. Bio Leg reflects that combination: personal understanding, technical discipline, and practical input from clinicians.
Personal Insight
Firsthand experience helps reveal the small moments that can affect confidence, comfort, and trust during daily mobility.
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DESIGN APPROACH
Built around the moments that matter in real life.
BionicM’s design approach is shaped by the belief that mobility technology should support people in the real world, not just perform well in theory. Lived experience helps identify the challenges that matter. Engineering turns those insights into movement support. Clinician feedback helps refine how that support is delivered in care.
Listen
Understand the daily challenges users and clinicians experience.
Translate
Turn those challenges into design priorities.
Engineer
Develop powered support that responds to real movement demands
Refine
Use clinical insight and user feedback to improve the experience over time
REAL-WORLD VALUE
Designed to support confidence on both sides of care.
For Clinicians
A clearer product story
BionicM gives clinicians a meaningful way to explain why Bio Leg was designed differently.
Practical clinical relevance
The product story connects directly to patient needs, mobility goals, and real-world use.
Support for adoption
Bio Leg is backed by tools, education, and resources that help clinicians bring powered mobility into practice.
For Users
Technology shaped by lived experience
Bio Leg is designed with awareness of the places, transitions, and mobility demands users experience every day.
Support that feels purposeful
Powered assistance is focused on helping users move with greater confidence, not adding unnecessary complexity.
Confidence beyond the clinic
The design approach keeps everyday environments in view, from sidewalks and stairs to longer days of activity.
Practical Power
Advanced powered mobility designed to fit real clinical workflows
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User-Driven Design
Technology shaped by lived experience and real-world mobility challenges
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Safety & Control
Predictable support designed to help build confidence in daily movement
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Dynamic Movement
Responsive assistance that adapts as movement demands change
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EXPLORE THE BIONICM DIFFERENCE
Four pillars. One purpose: better mobility through better design.

