Management Team

The management team of Sphere Medical has the expertise of highly experienced professionals in areas such as medicine, research and development, regulatory affairs and commercialisation. The team is tasked with guiding the company during this dynamic phase of its development and beyond.

Dr Wolfgang Rencken, CEO, Director

large_Wolfgang Rencken 2016.jpgWith many years’ experience in the healthcare and medical devices industries, Dr Wolfgang Rencken, has a proven track record in developing and commercialising award-winning diagnostic and monitoring equipment and driving significant revenue growth. Wolfgang’s previous experience includes being CEO of MAQUET Cardiopulmonary AG, an international medical devices group and COO of Definiens AG. He also spent 15 years with Siemens AG where among other roles he was Vice President of Engineering in the Software Components and Workstations business unit. He holds a doctorate in Engineering Science, Oxford University and is the author of numerous patents and scientific publications in the area of robotics.

Richard Wright, CFO, Director

large_Richard Wright 2016.jpgMr Wright is a Chartered Accountant with more than 20 years of experience in financial roles across a variety of sectors. Prior to joining Sphere Medical, he was Finance Director of Alliance Pharma plc, the UK based AIM-listed speciality pharmaceutical company for eight years.  Richard has also previously held senior finance positions with FirstGroup plc, Somerrfield plc and Parragon Books Limited.  Richard read Mathematics at the University of Cambridge and qualified as an accountant with Ernst & Young LLP.

Dr Gavin Troughton, VP Business Development

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Dr Gavin Troughton is a co-founder of Sphere Medical and has over 20 years’ experience in the development and commercial exploitation of chemical sensors and related technologies, particularly relating to the medical industry. Previously, Gavin worked for a number of years at Zellweger Analytics and at Scientific Generics, where he worked in their business innovation function.


Ian Yeeles, VP Sales EMEA

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Ian Yeeles has over 18 years’ experience in the healthcare and diagnostics market, having joined from Abbott Laboratories in August 2014.  He held a number of different roles at Abbott working in point of care diagnostics and patient self-testing within international healthcare systems.  His most recent role was General Manager, EMEA, Russia and Indian Direct and Distributor Sales Operations where he developed new markets and new routes to market across the area through direct sales and distributor networks.  He will be responsible for establishing a sales network within Europe, Middle East and Africa

Luciën van Os, COO

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Luciën van Os has more than 12 years’ experience in the medical device industry, having worked for companies such as Medtronic and Gambro in senior management positions as well as being CEO of small and mid-sized companies. He has an engineering background and has also worked for more than 15 years in various engineering and R&D roles for companies such as Philips and Ericsson.  Luciën has significant experience in bringing new technologies and products to market such as DECT cordless products, Bluetooth accessories, fully digital pacemakers, remote monitoring of cardiac pacemaker patients and injectable cardiac monitoring devices.


Shirlee Reason, Office Manager

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Shirlee is an innovative and detailed orientated Office Manager with over 19 years’ experience in Office Management and Human Resources ranging across specialities such as Security and Information Technology.  She has a medical background as she worked for 11 years as a qualified nurse with much of that time based in Intensive and Coronary Care.  Shirlee’s expertise also spans Health & Safety and Internal Auditing and has significant experience dealing with start-up companies. Shirlee is passionate about HR with speciality in Assessing Personalities in the workplace and Psychology