Our Team

Management Team

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Lesley Gouldie

B.Com., B.Acc., CPA, CA
President & CEO
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Veso Tijanic

B.Sc., M.Sc.

Chief Operating Officer

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Joseph A. Fisher

MD, FRCP(C)
Founder, Chief Scientific Officer
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Drew Miller

B.ASc., P.Eng.

Chief Technology Officer

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Robert J. Sullivan

B.Sc.
VP of Sales
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Tessa Mintz

M.HSc., M.Sc.
VP of Marketing
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Derek Watt

P.Eng., M.ASc.
Director of Commercial Products
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Olivia Sobczyk

B.MSc., M.Sc., Ph.D.
Director of Research
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Mark Slonchka

B.E.E., P.Eng., PMP

Director of Quality Assurance & Regulatory Affairs

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Trevor Shamas

CPA, MBA
Controller

Advisory Board

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David Mikulis

MD, FRCR
Advisor
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Seemant Chaturvedi

MD, FAHA, FAAN
Advisor
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Colin Derdeyn

MD
Advisor
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Steve Iscoe

Ph.D.
Advisor

Board of Directors

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Lesley Gouldie

B.Com., B.Acc., CPA, CA
Director
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Ludwik Fedorko

MD, Ph.D., FRCP(C)
Director
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Joseph A. Fisher

MD, FRCP(C)
Director
Arthur Slutsky

Arthur Slutsky

CM, MASc, FCAHS, FRSC, MD
Director
Brad Ashley

Brad Ashley

B.A., MBA, JD
Director
Thornhill Medical director – Wen Chen

Wen Chen

B.S., M.S.
Director
Thornhill Medical director – Chong Wang

Chong Wang

B.S., M.S., Ph.D.
Director
Thornhill Medical equipment manufacturing facility

Lesley Gouldie

A seasoned professional with senior leadership experience across Fortune 500 to start-up companies, Lesley Gouldie brings an impressive record of financial and strategic excellence in technology, biotechnology and education to lead Thornhill Medical as President and CEO. Under her leadership, the company has expanded its global leadership in producing ground-breaking oxygen-related medical technologies, experiencing unparalleled 1500%+ three-year growth and earning a top 40 ranking among Canada’s Top Growing Companies in 2021. To pilot Thornhill Medical smoothly through this unprecedented growth and the COVID-19 pandemic, Lesley draws on her proven strategic expertise, multidisciplined experience cultivating innovative manufacturing and supply chain alliances and scaling fast-growth teams, and an entrepreneurial mindset which she fosters across the organization.

Veso Tijanic

With 25 years of experience in product development, including 15 medical technology-based products, Mr. Tijanic brings his deep sector-specific engineering knowledge to his role at Thornhill Medical, ensuring excellence, innovation, and rigour.

Joseph A. Fisher

Dr. Fisher grew up in downtown Toronto, studied Medicine at the University of Toronto, graduating in 1973. He was in General Practice and practiced Emergency Medicine before returning to complete specialty training in both Internal Medicine and Anesthesiology, which he practiced until the end of 2021. Dr. Fisher is a full Professor at the University of Toronto, and the Toronto General Hospital Research Institute. He has supervised more than 30 graduate students (MSc, PhD), published 220 papers on topics including cardio-pulmonary physiology, anesthesiology, pharmacology, neurovascular physiology and MR imaging (h-index of 55 as of July 2022). Dr. Fisher and Dr. Ludwik Fedorko co-founded Thornhill Medical as a spin-off from the University Health Network in 2004. Dr. Fisher is an inventor of the more than 40 patents which cover the science behind Thornhill Medical’s products: MOVES® SLC™, MADM™ and ClearMate™. As Chief Scientific Officer, he oversees continuous Research and Development, including the investigational tool RespirAct® RA-MR™ and RIVAL, a potential accessory for MADM™; plus exploring a new approach to non-invasive measures of cardiac output.

Drew Miller

With over 30 years of product development experience in electronics and software design, Mr. Miller brings his depth of knowledge of medical device creation to Thornhill’s product development team.

Robert J. Sullivan

Robert J Sullivan joined Thornhill Medical as the Vice-President of Sales in 2020. Robert’s career prior to joining Thornhill Robert included numerous senior leadership roles commercializing medical devices in world markets. He has led global leadership functions in Fortune 500 firms Medtronic and Abbott Labs and in start-up/emerging firms Somanetics and Profound Medical. His developed expertise is in commercializing novel medical devices in global markets, world-wide business development and sales team leadership.

Tessa Mintz

Tessa Mintz has spent her career in organizations that share a common thread, bringing new innovations to life. Tessa has worked in all areas of these organizations, including strategy, business development, marketing, technology and client services. Prior to joining Thornhill Medical, Tessa was the principal in her own consultancy, working with a variety of technology start-ups to address the fundamental questions of defining a unique value proposition and the target market with the most immediate potential. Tessa is pleased to bring this range of experiences to her role at Thornhill Medical as it continues its exciting growth trajectory.

Derek Watt

Derek has been on the Thornhill Medical team since 2007, working in test engineering, product development, customer training, quality management and regulatory affairs. As Director of Commercial Products, Derek supports Thornhill’s commercial partners and customers, while developing new and exciting business opportunities and bringing innovative ideas from the field to the Thornhill Medical team.

Olivia Sobczyk

Dr. Olivia Sobczyk strives for excellence in the field of neuroscience and respiratory physiology and works each and every day to merge science and technology for the betterment of mankind. Dr. Sobczyk has over 11 year’s experience at Thornhill Medical creating and developing new medical technologies and clinical management solutions, from benchtop to bedside, with a focus on neurovascular disease. She obtained her PhD from the Institute of Medical Science at the University of Toronto and University Health Network, specializing in neuroimaging and neurophysiology. Olivia’s understanding of the value of commercialization of research as a tool for change, brings a whole new depth and reach to her work and makes her an invaluable member of the Thornhill Medical team.

Mark Slonchka

With over 22 years of experience in the medical device, IVD and non-medical industries, Mark has a strong background in quality, regulatory, product development, service, and production. Mark’s experience includes responsibility for companies’ quality, regulatory affairs, and product development teams where he has implemented a full medical quality system from scratch, brought multiple products to market and achieved world-wide product approvals.

Trevor Shamas

Trevor’s background is an interesting fusion of manufacturing finance, complemented with procurement, IT, and project management, acquired over a 20 year stretch in mining/processing and another 5 years in the automotive sector. He is a CPA and an MBA who’s keen on system development and process definition. Trevor reminds us that he is “not just a numbers guy”, but someone who values people as the most important part of any equation.

David Mikulis

Dr. Mikulis is Professor and Co-Director of Medical Imaging Research in the Department of Medical Imaging at the University of Toronto and the University Health Network. He is also Director of the Radiology Residency Research Program and Director of the Functional Imaging Research Lab. Dr. Mikulis is one of the founding members of the American Society of Functional Neuroradiology (ASFNR), and currently serves on the ASFNR Executive Committee.

Seemant Chaturvedi

Dr. Chaturvedi is Professor of Neurology at Wayne State University School of Medicine and Director of the Wayne State/Detroit Medical Center Comprehensive Stroke Program. He has co-edited the books Transient Ischemic Attacks (2004) and Carotid Artery Stenosis: Current and Emerging Treatments (2005). He was chairman of the Carotid Endarterectomy Guidelines Committee of the American Academy of Neurology, the guidelines having been published in 2005. He is currently on the steering committee of several stroke prevention studies.

Colin Derdeyn

Dr. Derdeyn is Professor of Radiology, Neurology and Neurological Surgery at Washington University and Director of the Washington University/Barnes Jewish Hospital Stroke and Cerebrovascular Center. He is a Principal Investigator for the Stenting and Aggressive Medical Management for the Preventing Recurrent Stroke in Intracranial Stenosis (SAMMPRIS) trial, an ongoing randomized trial of angioplasty and stenting for intracranial atherosclerotic disease. He directs the Washington University Specialized Program for Translational Research in Acute Stroke (SPOTRIAS) Center. Dr. Derdeyn also chairs the Data and Safety Monitoring Boards for two ongoing NIH-funded acute stroke clinical trials (MR Rescue and ICTus 2/3).

Steve Iscoe

Dr. Iscoe, a collaborator of Dr. Fisher since 1994, was a founding shareholder and president of one of the companies that became Thornhill Medical. A retired Professor of Physiology at Queen’s University, his research focused primarily on control of the diaphragm, particularly how respiratory loads induce cardiorespiratory failure. An associated aspect was the development of a novel blood test for detecting skeletal muscle injury. His background as a respiratory physiologist contributed to the development of the company’s breathing circuits that maintain carbon dioxide levels independent of ventilation, and to their research and clinical applications.

Ludwik Fedorko

A published researcher with expertise in cardiovascular anesthesia, heart and lung transplantation and cardiovascular intensive care, Dr. Fedorko is an invaluable senior member of the scientific team at Thornhill Medical, contributing his specialised knowledge and expertise.

Arthur Slutsky

Dr. Slutsky’s background in engineering, and the depth and breadth of clinical research experience in critical care, lung function and mechanical ventilation, along with entrepreneurial and health tech commercialization experience make him an invaluable resource to Thornhill Medical. Dr. Slutsky has published >675 original papers, reviews and editorials, as well as 70 books/chapters, and many randomized controlled trials which have changed clinical guidelines and practice. Dr. Slutsky chaired the U.S. FDA Advisory Panel for Anesthesia and Respiratory devices for 8 years and held the position of Vice President, Research, at St. Michael’s Hospital, Toronto, from 2000-2018. Dr. Slutsky has had many honours and awards including Lifetime Achievement Award from the ATS (2012), Engineering Alumni Medal (UofT, 2014), Canada’s Health Researcher of the Year award from the CIHR (2014), elected as Fellow of the Royal Society of Canada (2017) and received the Order of Canada (2018). Dr. Slutsky is currently Professor of Medicine, Surgery and Biomedical Engineering (University of Toronto).

 

Brad Ashley

Mr. Ashley is currently the Managing Partner and Founder of PRIVEQ Capital Funds responsible for sourcing and negotiating new private equity investments and nurturing these investments. Mr. Ashley has previously held roles with Ernst & Young, and J.P. Morgan, among others. He serves as an advisor to Trellis Capital – a Canadian venture capital fund as well as to Dash40 – a Canadian seed capital fund, along with Directorships with Integracare Inc. and Accipiter Radar Technologies Inc. Mr. Ashley is a long-standing member of the Board of Directors of the Association for Corporate Growth – Toronto Chapter having served since 1995. He also enjoyed a long-standing relationship with C.V.C.A. (Canada’s Venture Capital and Private Equity Association), including Chairman (2003-2005), President (2002 -2003) and was a member of the Board of Directors for 14 years. 

Wen Chen

Mr. Chen is a Senior Vice President of Tigermed Co. Ltd., a publicly traded company located in China, dedicated to providing professional clinical development services to the pharmaceutical and medical device industries. Mr. Chen also represents Yonghua Capital, a leading private equity and venture capital investment firm from China. Mr. Chen received a Bachelor’s Degree in biochemistry from Purdue University, West Lafayette, IN and a Master’s Degree in immunology and oncology and business administration from Washington University in St. Louis and Durham University, respectively. He then worked at Amgen research before returning to work in the China biotechnology industry since 2000.

Chong Wang

As the Yonghua Vice-General Manager, Mr. Wang has over eight years of experience in medical device R&D, engineering, and product management. He brings to Thornhill Medical his extensive knowledge of and expertise in healthcare-related investment.