CorTec-Team

CorTec is a team of talented people that are specialized in different research areas. Together we are creating the next generation of active implants. Check out our stories to get to know us better/get an insight into our daily life and work.

Management

Dr. Frank Desiere

Chief Executive Officer

Dr. Frank Desiere has many years of experience in management positions in the medical technology and life science industry. His expertise includes the development of innovative medical technology solutions and the management of digital transformation processes.

After completing his doctorate in life sciences at ETH Zurich and his MBA from IMD Lausanne, Dr. Desiere held several management positions in healthcare and medical technology companies. He led business development and medtech innovation, expanded the global business and launched breakthrough products. As General Manager at Roche Diagnostics, he was responsible for strategy and business development and led numerous mergers and partnerships with companies and universities. In addition, Dr. Desiere has led a startup accelerator and supported startups and SMEs as a board member.

With his combination of a scientific background, leadership experience and entrepreneurial spirit, Dr. Frank Desiere is a driving force for innovation and growth in the medical technology and healthcare industry.

Dr. Oliver Bärtl

Chief Operating Officer

Dr. Oliver Bärtl brings more than 15 years of international leadership experience in the medical device industry. Before he joined CorTec, Dr. Bärtl served as co-CEO of Henke-Sass, Wolf, a hidden champion in the medical device market operating in the fields of endoscopy and veterinary. Prior to Henke-Sass, Wolf, Dr. Bärtl worked for 13 years in different executive management roles at Stryker, one of the world’s leading medical technology companies.

Dr. Bärtl holds a degree in mechanical engineering from Technical College Ferlach and a M.Sc. in business, accounting, finance, and international business from Goethe University and Wisconsin School of Business. In 1999 he earned his PhD in managerial accounting from the University of Zurich.

Dr. Martin Schüttler

Chief Technology Officer

Martin Schüttler studied electrical engineering at the University of Braunschweig. His dissertation discussed nerve intersections processed using microsystems engineering. Since the completion of his PhD in 2002, and with more than 150 publications, he has earned an international reputation in the field of neuroprosthetics.

After several research periods abroad, he became team leader at the Department of Microsystems Engineering, chaired by Prof. Dr. Thomas Stieglitz, and one of the leading scientists at the BMII in Freiburg. In this role he was involved in the development of the CorTec technology right from the start. At CorTec he is responsible for the coordination of all developmental work.

Advisory Board

Dr. Christoph Mangold

Chairman

After studying law at the university of Wuerzburg/Germany, Dr. Mangold served as lawyer for several international law firms, such as “Orrick Herrington & Sutcliffe”. He focused on international arbitration and M&A transactions. In 2012, Dr. Mangold became managing director of Mangold Consulting GmbH and advises private and corporate clients in their activities in Eastern Europe (especially Hungary and Romania) as well as Central Asia (especially Uzbekistan and Kazakhstan). He is also managing director of a family-owned investment company with a portfolio in real estate, forestry, MedTec and health. In addition, Dr. Mangold is a member of the advisory board of a Liechtenstein foundation with a large investment portfolio and member of the advisory boards of Mediio GmbH and CorTec GmbH.

Dr. Mangold is also member of several organizations such as, “Stiftung Familienunternehmen”, “Familienbetriebe Land & Forst”, “Rotary” and the “International Council for Game and Wildlife Conservation”. He is married and has three children.

Helmut Jeggle

Deputy Chairman

Helmut Jeggle is an accomplished senior executive manager with more than 20 years of international experience in the financial field, including strategic management within corporate/noncorporate environments as well as substantial transactional experience.

Mr. Jeggle is currently the Chief Executive Officer of Salvia GmbH (since 2014). Until 2021, Mr. Jeggle held CEO positions at Neula Holding GmbH (2010-2021) and AT-Gruppe (2008-2021) and was a manager of Santo Group (2011-2021).

Helmut Jeggle is a member of numerous supervisory boards, including 4SC AG, AiCuris AG, BioNTech SE, and tonies SE. Mr. Jeggle holds a degree in business administration from the University of Applied Sciences Neu-Ulm and earned his MBA from the Stuttgart Institute of Management and Technology.

(Picture Credit: D.Gierke/Salvia GMBH)

Prof. Dr. Timothy Denison

Prof. Dr. Tim Denison holds a Royal Academy of Engineering Chair in Emerging Technologies at the University of Oxford, with appointments in both Engineering Science and Clinical Neurosciences, where he explores the fundamentals of physiologic closed-loop systems.
 
Before moving to academics, Tim helped pioneer the development of closed-loop implants with Medtronic and established research tool partnerships that link academics and industry to accelerate clinical translation.Tim Denison received an A.B. in Physics from The University of Chicago, an M.S. and Ph.D. in Electrical Engineering from MIT, and an MBA from the Booth school of Business at the University of Chicago.

Prof. Dr. Pascal Fries

Prof. Dr. Pascal Fries studied medicine at the University of Saarland and at the Johann Wolfgang Goethe University in Frankfurt. In 2000, he received his Ph.D. with honors from the Max Planck Institute for Brain Research and the Johann Wolfgang von Goethe University in Frankfurt. He gained outstanding international scientific experience and reach at the National Institute of Mental Health, Bethesda, Maryland, and at Radboud University Nijmegen, Netherlands, where he has been Professor of Systems Neuroscience since 2008.

Prof. Dr. Fries is a scientific member of the Max Planck Society.

Klaus Würtenberger

Klaus Würtenberger is managing director of his  family office K&SW Invest GmbH. Since 2008 he runs a consultancy business – K&SW Consult – which specializes in supporting start-up projects and familiy owned business in various sectors, including life sciences, medical device, robotics, e-commerce and telecommunications.

Mr. Würtenberger trained as a banker and obtained a degree in banking from the Frankfurt School of Finance and Management. During his career he served in various positions at Deutsche Bank Group, WestLB and Bankgesellschaft Berlin Group in Frankfurt, London and Berlin. From 2001 to 2008 he joined the Berlin based MedTech company Berlin Heart AG as CFO and COO. He managed a substantial company growth and achieved successful exit event for all initial investors.

Scientific Technical Advisory Board

Prof. Dr. Volker A. Coenen

Volker A. Coenen is medical director of the Department of Stereotactic and Functional Neurosurgery at the Department of Neurosurgery at the University Medical Center Freiburg.

Before he was working at Uniklinik RWTH Aachen as head of the the Division for Functional Neurosurgery. After a fellowship in the field of functional and stereotactic neurosurgery at the University of British Columbia in Vancouver, Canada, in the years of 2007 and 2008 he acquired a professorship of stereotaxis and MR-based operative techniques at the University Hospital of Bonn. Since 2013 he is Full Professor (W3) of Stereotactic and Functional Neurosurgery in Freiburg apart from his position as medical director.

In his research Professor Coenen is concerned with the subject of neuroprosthetics since 2001 specializing on deep brain stimulation (DBS). Focus areas are Parkinson’s disease, tremor and dystonia. In addition he is also working in the field of treating therapy-resistant epilepsy with stereo-EEG, Vagus Nerve stimulation or DBS. Since 2008 he extended his research also on therapy-resistant depression, obsessive-compulsive disorders and imaging assisted Deep Brain Stimulation.

Alexander Mayr

Alexander Mayr graduated in Telecommunication Engineering and Electronics from Higher Technical Institute in Innsbruck. He started his career as a technical assistant at the Institute of General Electrical Engineering in Vienna in 1985. 

In spring 1986, he moved to Institute for Applied Physics of University of Innsbruck together with Prof. Dr. Erwin Hochmair where he was responsible for transforming university research prototypes into commercial products. The primary focus of this role was leading cochlear implants, speech processors plus fitting software to production.

His responsibilities expanded to developing a device for motion analysis of the cervical spine in space conditions which was considered to be the biggest project of Austrian air and space in MIR space station.

Alexander Mayr is one of the first employees of MED-EL company. Since joining MED-EL in 1990, he is Head of Implant Manufacturing. In this role he oversees the manufacturing of all types of implants and supervises the complete infrastructure, technology and logistics of the manufacturing processes.

Prof. Dr. Thomas Stieglitz 

Thomas Stieglitz studied electrical engineering, specializing in biomedical engineering, in Brunswick and Karlsruhe. He got his PhD from Saarland University where he also habilitated in biomedical microsystems engineering in 2002.

From 1993 to 2004, he worked at the Fraunhofer Institute for Biomedical Engineering (Institut für Biomedizinische Technik, IBMT) in St. Ingbert. There he founded the research conducted in the field of biomedical microsystems for neuroprosthetics, which eventually led to the formation of a neuroprosthetics task force.

Since 2004, Prof. Stieglitz has held the chair for biomedical microtechnology at the Department of Microsystems Engineering (Institut für Mikrosystemtechnik, IMTEK) at the University of Freiburg. His research priorities include the development of biocompatible construction and interconnection technologies as well as the use of microsystems for neuroprostheses and neuromodulation.

Prof. Dr. Ulf Ziemann

Ulf Ziemann studied medicine in Göttingen. Since 1996, he has been a neurology specialist. He completed his habilitation in neurology and clinical neurophysiology at the University of Göttingen in 1999. From 2004-2012, he was chief physician of the Clinic for Neurology at the University Hospital Frankfurt. In May 2013, he became medical director of the Department of Neurology with a focus on vascular neurology at the University Medical Center Tübingen.

His scientific work focuses on exploring the plasticity of the brain, its capacity to learn and to reorganize – particularly in cases of physical and cognitive impairments. His research has a particular focus on impairments caused by strokes or multiple sclerosis.

At the University Hospital Frankfurt, Prof. Ziemann was director of a motor cortex research group. He was also coordinator and spokesperson of the interdisciplinary collaborative research “Neuronal Coordination Research Focus Frankfurt” (NeFF). In Tübingen, he will continue to dedicate himself to the systems-neurophysiological exploration of the plasticity and reorganization of the brain.

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SPECIFICATIONS

FEATURE 

Recording channels 

Sampling rate 

Sampling dynamic range 

High pass filter cut-off 

Low pass filter cut-off 

Amplifier band pass gain 

Band pass roll-off 

Reference


Stimulation 

Stimulation channels 

Current 

Current source 

Pulse width 

Power supply 

Wireless data transmission 

Closed Loop latency

VALUE

32 

1 kHz 

16 bit (74 nV smallest increment) 

ca. 2 Hz 

325 Hz 

Adjustable: 100-750 

20 dB/dec 

Any (subset) of the recording channels selectable by software or one dedicated hard-wired additional contact 

Current-controlled, biphasic, rectangular, asymmetric stimulus pulses (cathodic amplitude with pulse width followed by an anodic counter pulse of 1/4x amplitude and 4x pulse width) 

 32 

Max. -6 mA / +1.5 mA (24 µA increments) within

 compliance voltage range of -11 V to +5 V 

Can be directed to any of the 32 electrode contacts 

Negative phase: 10 µs – 2,500 µs

Wireless inductive, 120-140 kHz

Bi-directional, radio frequency in 2400-2483.5 MHz band ≤ 40 ms