axana® is built on the gold-standard
technology platform
In front line care, the ability to detect acute stroke quickly and accurately is critical. Magnetic resonance offers superior soft tissue contrast mechanisms for ischemic and reliability for hemorrhagic strokes - a key competitive edge in stroke diagnostics.
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Introducing Pulsed Gradient
Free Mapping
axana® isn’t another scaled-down MRI. Bases on Pulsed Gradient Free Mapping technology, axana® leverages proven MRI tissue contracts in a portable, faster, and energy-efficient system designed to accelerate current workflows.
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Meet our leaders
Wellumio is driven by a multidisciplinary team united by a shared mission to transform stroke care.
Our Investors
Our Origin Story
Wellumio was never the product of a single eureka moment —it was forged through unexpected meetings, relentless problem-solving, and a shared belief in the power of science to transform lives. It began when a group of people from vastly different drive: to rethink how brain imaging could be done.
Our Journey
A paradigm
shift in imaging
We believe that improving access to MRI technology is key to solving long-standing health delivery challenges. If you can help towards our mission of accelerating stroke care, we'd like to hear from you.
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SHIEAK TZENG
Co-founder & Co-CEO
Shieak is a physician-scientist and MedTech entrepreneur with a background in driving innovations at the intersection of technology and critical care medicine. Before Wellumio, he co-founded a bioinformatics company scaling it to international adoption as CEO and led the University of Otago's Centre for Translational Research as its founding director. His technical work has resulted in over 100 publications and multiple innovations in medical technology. Shieak holds an MD and PhD from the University of Otago, was a Sir Charles Hercus Fellow with the New Zealand Health Research Council, and completed a postdoctoral fellowship at Harvard Medical School.
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SERGIE OBRUCHKOV
Co-founder & Co-CEO
Sergei is a medical physicist specializing in MRI technology and the investor behind Wellumio's pulsed gradient-free mapping (PGFM) technology. Before co-founding Wellumio, he developed imaging systems at the Robinson Research Institute and co-founded Resonint, bringing educational MRI systems to market in the U.S. He trained at McMaster University, where he worked on MRI coil development for Sentinel Medical, and completed industry fellowships at Tornado Medical. Sergei has collaborated with leaders in medical imaging, including Magritek and Synaptive Medical, and is deeply involved in the advancement of low-field MRI solutions for stroke care.
GYAN BARIK
Executive Director, Business Operations & Australia
Gyan is a business executive with a background in scaling medtech and software ventures. Before Wellumio, he co-founded SmarMinds, an IT consulting firm supporting ASX-listed medical device companies, and later founded Facilitracks, a smart facilities management platform with enterprise clients like Marina Bay Sands and Auckland District Health Board. He previously served as VP of Product Operations at Philia Labs, a wearable biometrics startup, later becoming CEO and leading its funding round with investor across Australia and Singapore. Gyan brings operational expertise across Australia, Asia, Europe, and the US., helping drive Wellumio's global strategy.
ZAID ROUAG
General Manager USA
Ziad is a MedTech industry leader with over 25 years of experience in product development, regulatory strategy, and commercialization. Before joining Wellumio, he was CEO of Biomodex, leading the company's global expansion and its acquisition by Mentice. He has held senior leadership roles at JUUL Labs, PQ Bypass (acquired by Endologix), Altura Medical (acquired by Lombard Medical), and Avinger (NASDAQ: AVGR). He has also worked in strategic roles at Guidant, Evalve (acquired by Abbott), and Codman (J&J). Ziad brings deep expertise in scaling MedTech ventures and guiding companies through regulatory and commercial milestones.
DANIEL WEYERS
VP Product Development
Daniel is a veteran in MRI technology with nearly 30 years of experience in system design, RF hardware, and product development. Before Wellumio, he was Global Product Manager at GE Healthcare, where he played a key role in the launch of the AIR Coil technology and the GE Signa Premier system. Prior to that, he was CEO of DJW Innovations, consulting for medical imaging companies on RF systems and MRI coil technology. His deep technical expertise and leadership in MRI hardware development are instrumental in bringing Wellumio's Axana system to market.