TS Medical

Born from years of experience as recognized physicians and medical device developers, TS Medical identified a need for next generation exercise and rehabilitation devices to improve circulatory health.

blood flow to the foot

TS MedicalTM was established in 2013 to develop innovative health products that support an active, healthy lifestyle.

The company’s ActiveAxisTM product line, and release of our FitFootTM  product was designed to improve circulation via simple and inexpensive devices for use at home, travel along with hospitals, rehabilitation centers, and other settings.

Founder and CEO, Mary Anne Tarkington, MD recognized a need for products that improve circulation and reduce the risk of blood clots. Being a surgeon, she is particularly sensitive to the serious nature of blood clots, which are a well-known complication of surgery and certain chronic diseases. Today, she leads the company’s research program, focusing on circulation-boosting tools to prevent such complications.

FitFoot aims to serve the 5 million people who have surgery in the US annually with solutions for prehabilitation and enhanced recovery after surgery. But there are many other populations that can benefit from better circulatory health. For example, Fitfoot may help tens of millions living with peripheral arterial disease, chronic venous insufficiency, and diabetes – and millions more battling COVID-19 or living a sedentary lifestyle.

TS Medical has patented and developed the ActiveAxis line of innovative and simple exercise devices for home, travel and clinical use. They promote blood flow, lymph drainage, and strength building that have been found to aid in the treatment and rehabilitation of conditions and injuries affecting the lower legs.

TS Medical

Team Members

The TS Medical team consists of professionals in healthcare and medical device development

Senior Management

Dr. Mary Anne


Founder and CEO



Product Management and Engineering



Corporate and Clinical Programs



Forcht Dagi

Senior Advisor



Senior Advisor



Senior Advisor

Design and Engineering Services

Priority Designs is a full service product development consultancy with research, strategy, design, engineering, prototyping and soft goods capabilities all under one roof. Clients include household names with leading brands in sporting goods, medical, consumer products, industrial equipment and more. Located in Columbus, Ohio with a 50,000 sq. ft facility and 60+ dedicated product development experts, Priority Designs has been helping clients bring products to market for over 25 years.

Click here to read a use case by Priority Designed on the development and evolution of FitFoot.

Bresslergroup is an insight-driven innovation lab. Their strategists, researchers, designers, and engineers are trusted by forward-thinking leaders to solve inspiring design challenges in a constantly evolving product landscape. Bresslergroup drives innovation that fuels growth in categories ranging from consumer products to medical devices.


Dr. Mary Anne Tarkington

Founder and CEO

Mary Anne is passionate about developing therapeutic products that enhance circulation and one day, may reduce the incidence of blood clots and venous thromboembolism (VTE).

As a urologic surgeon, she is particularly sensitive to the impact of VTE on both surgical and medical patients as well as those with certain underlying medical conditions. Her recent focus has been on the role circulation boosting products might play in surgical prehabilitation and enhanced recovery after surgery.

Mary Anne is an experienced oncology researcher and is a former Research Scholar of the American Foundation for Urologic Disease, who conducted work at the Lombardi Cancer Center, Georgetown University.

Mary Anne is the recipient of multiple honors and awards, She holds degrees from Vassar College (BA) and Georgetown University (MD), where she also completed her clinical training.

Dave Boulos

Product Management and Engineering

Dave has 30+ years of experience in Product Management, Product Marketing and Engineering with a proven history of taking high-tech solutions from concept to “best of breed” status.

Prior to TS Medical, Dave has held executive positions in Marketing, Engineering, Sales, and Support in organizations such as ILS Technology, ComBrio, Telco Systems, SP Global and Sengex to include the definition, development and marketing of health devices.

Dave holds degrees in Electrical Engineering, Business Management, Data Communications, and Telecommunications from Northeastern University.

Patricia Eisenhardt

Corporate and Clinical Program Director

Patricia has worked with TS Medical since 2016. She is closely involved in advising business strategy, partnerships, and coordinating proof of concept for market entry.

A serial entrepreneur with one exit, Patricia has co-founded several life science startups with a track record of successful fundraising and partnerships. She also has had the honor of being among the first in the nation to launch innovation programs for major health systems. Her passion is to enhance the quality of life through medical innovation.

Patricia holds degrees from the University of Chicago (AB), Columbia University (AM), and The Ohio State University (MBA).

Teodoro Forcht Dagi

Senior Advisor
Teo brings broad expertise in clinical neurosciences, patient safety, biomedical innovation and venture capital to TS Medical. In addition, he assists and advises the company commercialization strategy. He has been involved in over 30 start-ups, and has served as a director of privately held and publicly-traded companies in the US, Canada, the US, and the Baltics.

Teo currently serves as Enterprise Vice-Chair and Professor of Neurosurgery at the May Clinic. Previously, he served as the CEO of Boston Neurosciences. He also is a past Chair of the Committee on Perioperative Care of the American College of Surgeons and the Council of Surgical and Perioperative Safety, as well as a director of the Anesthesia Patient Safety Foundation.

Teo holds degrees from Columbia University (AB), Johns Hopkins University (MD, MPH), and Wharton (MBA),. He trained in neurosurgery at the Massachusetts General Hospital and the Guy’s, Maudsley and King’s College Hospitals Neurosurgical Unit in London. He was appointed the Neuroresearch Foundation Fellow, and then the Joseph P. Kennedy, Jr., Fellow at Harvard University. He also was awarded a DMedSc (Honoris Causae) from Queen’s University and a DHC from the University of Kaunas for contributions to medicine and public service.

Hans Schmidt

Senior Advisor – Financial

Mr. Hans Schmidt is the former chairman of Heyer Medical, and currently the Director at Sengex LLC and Chief Executive Officer at Winthrop Management Services, Inc. Hans is assisting TS Medical as an advisor through his vast experience in the development and distribution of medical devices.

Eric Vollmecke

Senior Advisor

As an advisor, Eric is bringing is executive experience in advanced technology development and international program management to the TS Medical team.

Eric currently serves as Director/Professor of Practice of the Rapid Prototyping Research Center (RPRC), College of Engineering and Computing at George Mason University. Prior to joining the RPRC, he served in a variety of executive and program management positions at Heyer Medical, SCRA, Lockheed Martin, and Sengex. His 35+ year career includes experience at all organizational levels in government as well as corporate organization and spans key functional areas such as systems engineering, program management, and strategy, partnerships, and manufacturing. He has led many R&D initiatives that have provided cost effective, competitive differentiation for commercial and government clients, worldwide.

Eric also served in the U.S. Air Force Reserve component as a Major General and directs the ANG support to the State Partnership Program.Eric served as a Major General in the United States Air Force. As the Air National Guard Mobilization Assistant to the Commander, United States Air Forces in Europe/Air Forces Africa, he led 2,500 personnel and directed the $600M National Guard and Reserves Equipment Account to meet emerging needs of Domestic Operations, Cyber and ISR, concluding his military career serving in The Joint Chiefs of Staff.

Eric holds degrees from The Citadel (BA, Mathematics) and George Washington University (MBA). Professional affiliations include membership in the National Guard Association of West Virginia, the National Guard Association of the United States and the Association of Information Technology Professionals. He is also a recent graduate of the Joint Armed Forces Staff College.

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Conditions that FitFoot can Benefit in Relief and Recovery

Tight Calves – cramping in calves
Achilles tendinitis – pain in the heel, and along the length of the Achilles tendon, when walking, running, in the morning.
Venous insufficiency – swelling in legs/ankles, tight feeling in calves, itchy, painful legs, pain when walking that stop with rest, brown- colored skin, often near the ankles, varicose veins, ulcers that are sometimes hard to treat.
PAD –  weakness, hair loss, smooth, shiny skin, skin, cool to the touch, pain with walking, sores on feet/legs that don’t heal
Arthritis – Stiff/painful joints
Peripheral Neuropathy – Lower leg numbness, muscle weakness/twitching.  Loss of muscle mass,  loss of balance.
Restless Leg Syndrome – very strong urge to move the legs, due to uncomfortable, feeling in the legs, worse in the evenings or at night, when sitting or lying down. Moving relieves the discomfort for a short time.
Poor Circulation – leg pain, heaviness, aching, swelling, skin, dryness, tightness, itching, irritation, and muscle cramps
Plantar Fasciitis – stabbing pain in the heel worse in the morning or after sitting, after long periods of standing
Poor Balance – unsteady on feet, ankles turn/roll to the outside
Rehab from ankle/knee injury or surgery
O’Brien, Jane & Edwards, Helen & Finlayson, Kathleen & Kerr, Graham. (2012). Understanding the relationships between the calf muscle pump, ankle range of motion and healing for adults with venous leg ulcers: a review of the literature. wound practice and research: 2012.
[Semantic Scholars Link]
Xi Pan, Jiao-jiao Bai. Balance training in the intervention of fall risk in elderly with diabetic peripheral neuropathy: A review. International Journal of Nursing Sciences. December 2014
[International Journal of Nursing Sciences Link]
Canonico ME, Siciliano R, Scudiero F, Sanna GD, Parodi G. The tug-of-war between coagulopathy and anticoagulant agents in patients with COVID-19. Eur Heart J Cardiovasc Pharmacother. 2020 Jul 1;6(4):262-264.
[NLM Link]
Marco Narici, Giuseppe De Vito, Martino Franch, Antonio Paoli, Tatiana Moro, Giuseppe Marcolin, Bruno Grass, Giovanni Baldassarre, Lucrezia Zuccarelli, Gianni Biolo, Filippo Giorgio di Girolamo, Nicola Fiotti, Flemming Dela, Paul Greenhaff, Constantinos Maganaris. Impact of sedentarism due to the COVID-19 home confinement on neuromuscular, cardiovascular and metabolic health: Physiological and pathophysiological implications and recommendations for physical and nutritional countermeasures. Eur J Sport Sci. 2020 May 12;1-22.
[NLM Link]
Mi, Yuhong MM; Yan, Shufeng MM; Lu, Yanhui MD, PhD; Liang, Ying MM; Li, Chunsheng MD. Venous thromboembolism has the same risk factors as atherosclerosis, Medicine: August 2016 – Volume 95 – Issue 32 – p e4495
[NLM Link]
Blum E, Abdelwahed YS, Spiess E, Mueller-Werdan U, Leistner DM, Rosada A. COVID-19 #StayAtHome Restrictions and Deep Vein Thrombosis: Case Report. Interact J Med Res. 2021 Jan 14;10(1):e23443.
[NLM Link]
Rosendaal, F.R. Causes of venous thrombosis. Thrombosis J 14, 24 (2016)
[Thrombosis journal Link]
Elissa Driggin, Mahesh V Madhavan, Behnood Bikdeli, Taylor Chuich, Justin Laracy, Giuseppe Biondi-Zoccai, Tyler S Brown, Caroline Der Nigoghossian, David A Zidar, Jennifer Haythe, Daniel Brodie, Joshua A Beckman, Ajay J Kirtane, Gregg W Stone, Harlan M Krumholz, Sahil A Parikh. Cardiovascular Considerations for Patients, Health Care Workers, and Health Systems During the COVID-19 Pandemic. J Am Coll Cardiol. 2020 May 12;75(18):2352-2371.
[NLM Link]
Torsten Willenberg , Anette Schumacher, Beatrice Amann-Vesti, Vincenzo Jacomella, Christoph Thalhammer, Nicolas Diehm, Iris Baumgartner, Marc Husmann. Impact of obesity on venous hemodynamics of the lower limbs. J Vasc Surg. 2010 Sep;52(3):664-8.
[NLM Link]
Phoebe A Stapleto, Milinda E James, Adam G Goodwill, Jefferson C Frisbee. Obesity and vascular dysfunction. Pathophysiology. 2008 Aug;15(2):79-89.
[NLM Link]
Jason Tak-Man Cheung, Ming Zhang, Kai-Nan An. Effect of Achilles tendon loading on plantar fascia tension in the standing foot. Clin Biomech (Bristol, Avon). 2006 Feb;21(2):194-203.
[NLM Link]
Gwendolyn Vuurberg, Alexander Hoorntje, Lauren M Wink, Brent F W van der Doelen, Michel P van den Bekerom, Rienk Dekker, C Niek van Dijk, Rover Krips, Masja C M Loogman, Milan L Ridderikho, Frank F Smithuis, Sjoerd A S Stufkens, Evert A L M Verhagen, Rob A de Bie, Gino M M J Kerkhoffs. Diagnosis, treatment and prevention of ankle sprains: update of an evidence-based clinical guideline. Br J Sports Med. 2018 Aug;52(15):956.
[NLM Link]
Bijan Najaf , Ryan T Crews, James S Wrobel. A novel plantar stimulation technology for improving protective sensation and postural control in patients with diabetic peripheral neuropathy: a double-blinded, randomized study Gerontology. 2013;59(5):473-80.

[NLM Link]

Angela Höhne, Sufyan Ali, Christian Stark, Gert-Peter Brüggemann. Reduced plantar cutaneous sensation modifies gait dynamics, lower-limb kinematics and muscle activity during walking. Eur J Appl Physiol. 2012 Nov;112(11):3829-38.

[NLM Link]

Monteiro RL, Sartor CD, Ferreira JSSP, Dantas MGB, Bus SA, Sacco ICN. Protocol for evaluating the effects of a foot-ankle therapeutic exercise program on daily activity, foot-ankle functionality, and biomechanics in people with diabetic polyneuropathy: a randomized controlled trial. BMC Musculoskelet Disord. 2018 Nov 14;19(1):400.

[NLM Link]

A N Nicolaides, Investigation of chronic venous insufficiency: A consensus statement.  Circulation 2000 Nov 14;102(20):E126-63.

[NLM Link]

Young Jin Youn, Juyong Lee. Chronic venous insufficiency and varicose veins of the lower extremities. Korean J Intern Med. 2019 Mar;34(2):269-283.

[NLM Link]

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