Konan Medical USA

people  |  vision  |  inspiration  |  innovation  |  dedication

Global Experience


Forward Thinking


Problem Solvers

Customer Focus

Charles Wm. Stewart, OD

Charles Wm. Stewart, OD

CEO, Director

  • Twenty + years of global ophthalmic products | 35 + years of ophthalmic industry management experience
  • Global clinical and complex ophthalmic surgical device experience applied to clinical performance assessment, market enhancement, medical advisory boards, global key opinion leader relationships
  • Specialized experience in ophthalmic diagnostic products, business development, global sales infrastructure, product marketing and distribution, global regulatory environment, and SaaS (software as a service)
  • Senior management and leadership experience in USA and International public and private sector companies
  • Doctor of Optometry
Dale Sadlik, BSc., MBA

Dale Sadlik, BSc., MBA


  • Twenty+ years in the medical device industry
  • Medical device experience:
    • new product development
    • regulatory affairs
    • quality assurance
    • operations
    • strategy
  • Management Experience in public and private companies
  • MBA – University of California, Irvine
Gina Schumann, CPA

Gina Schumann, CPA


  • Twenty + years of professional Accounting experience
    • public accounting and auditing with a “big 4” firm
    • FDA regulated environments
    • EU and international trade
    • investment services
    • financial forecasting
  • Professional experience in public and private companies
  • BS Accounting – Cal State Polytechnic University – Pomona
  • Certified Public Accountant
Susan Setsuko Oak

Susan Setsuko Oak

Sr. VP, Clinical Affairs and Director

  • Assistant Professor – Department of Ophthalmology, Boston University School of Medicine
  • Research Assistant – MEEI, Department of Ophthalmology, Harvard Medical School
  • President – BioOptics Inc (contact specular microscopes image analysis systems)
  • Founder & CEO – DataMed Devices Inc. (contact specular microscopes image analysis systems
  • Board Member – Konan Medical USA, Inc. and Konan Medical Inc. (Japan)
Simon Gordon

Simon Gordon

Sr. VP, Corporate Development, Manager EMEA

  • Thirty+  years marketing medical devices
  • Twenty+ years in medical devices management
  • Global experience in sales, marketing
  • Global experience in distribution development
  • Experienced in product development
  • Early investor in Autonomous Technologies with a significant role in developing the business through to very successful trade buy out
  • Led IPO in London raising over 11M pounds sterling
Robert L. Rennaker II Ph.D.

Robert L. Rennaker II Ph.D.

Vice President Engineering and Innovation

  • Twenty+ years in biomedical device research and development
  • Published over 100 peer-reviewed scientific publications
  • Raised over $40M in federal funds for medical device research
  • Developed class 3 implantable pulse generator
  • Founder Vulintus Inc.
  • Professor of Biomedical Engineering and Neuroscience
  • BSE, MSE, Ph.D. – Arizona State University
  • Five years active duty in United States Marine Corps
Ian McMillan

Ian McMillan

VP, North American Sales and Marketing

  • Twenty+ years global experience in sales, marketing and product development
  • Specialty experience ERP systems
  • Experience in bringing multiple new products to market
  • Management experience in both private and public companies, start-ups
  • Extensive experience in e-commerce, SaaS, online distribution of entitlements and mission-critical enterprise software
Todd Isakson

Todd Isakson

VP, Customer Services

  • Thirty+ years of customer service, training and product development in multiple industries (hospitality, travel, customized software solutions, medical devices)
  • Ten + years experience in management of global network of sales and service centers
  • Experience in Loyalty Program product development achieving global recognition of best Frequent Flyer Program
  • Management experience in both public and private companies, including several start-ups
Shirin Ayers, M.E., MBA

Shirin Ayers, M.E., MBA

Sr. Product Manager, Advanced Diagnostics

  • Fifteen+ years in the ophthalmic device industry
  • Strategic management experience at national and international capacities
  • Skilled in product management, new product launch and business strategy
  • Passionate about technical/clinical education and customer support
  • Educational background includes a Bachelor’s and a Master’s degree in Engineering and an MBA