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Defender Operations

Defender Operations is a medical device company dedicated to protecting the at risk foot and injured lower extremity.

We do this by listening to patients and professionals, the customer. Then create solutions that consider their daily functional needs and desires. Incorporating this information with modern acquisition techniques, design, fabrication and production systems for the delivery of market leading, usable protective devices.

With the combination of customer driven design, leading edge science and medicine, we will protect lower extremities, improve wound healing outcomes, decrease the incidence of complications, limit amputations and save lives.

“If you listen to your patients they will tell you their diagnosis” Dr. W Osler circa 1900

Better Design | Superior Function | Greater Compliance


Founder Dr. Jason R. Hanft has over 30 years of experience in lower extremity medicine and surgery, limb salvage, wound care and clinical research. Participating as an investigator in nearly 100 separate clinical trials and research studies. He has worked on every significant clinical trial in the wound care space over the past 20 years.

Dr. Hanft is an adjunct professor at multiple institutions. He is a frequent lecturer and has authored 50+ peer reviewed journal publications as well as multiple book chapters.

Dr. Hanft is also the director of research for the Doctors Research Network and practices at The Foot & Ankle Institute of South Florida in South Miami, Florida. He owns several US and international patents and trademarks. He is recognized as a key opinion leader in wound care.

Better by Design

Defender works with Michael DiTullo on the design of its products. For more than 20 years Michael has been designing iconic products and brand experiences for some of the best brands in the world including Nike, Google, Jordan, Motorola, Honda, Converse, Brooks Running, and Hasbro. Located a block from the Pacific Ocean in San Diego, his studio focuses on industry leading halo projects across autonomous automotive, consumer electronics, travel, mobile devices, wearable's, toys and footwear.

Defender Team Members

Adam Landsman, DPM, PhD

DrAdamDPM IconHuman locomotion, gait analysis and wound healing.
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REV1 Phillip Burke COO

Rev1 PhillipBurke IconEngineering and Development
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John W. Knezevich, PE

Rev1 PhillipBurke IconEngineering and Development
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Maria S. Surprenant, MS, DPM, FACFAS

MariaSSurprenantMS IconClinical research and regulatory
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Aldo Alvarez MS, LCPO

AldoAlvarezMS IconOrthotics and prosthetics
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Richard Gilly, JD

RichardGilly IconIntellectual property and legal
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Ajonel Vazquez

AjonelRVazquez IconWeb design, operations and development
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