About us

Our organization

Prolira was founded in 2015 as a medical technological startup (spin-off) from the University Medical Center Utrecht (UMC Utrecht). Prolira’s DeltaScan, a CE certified medical device, was developed as a result of the clinical need to detect delirium better and earlier. It is based on cutting-edge clinical research led by neurologist intensivist Prof. Arjen Slooter and his ‘Brain at Risk’ research group.

Prolira now has a team of more than fifteen experienced professionals. Our team is committed to better detection & monitoring for delirium to help healthcare providers deliver the best possible delirium care to their patients.

Prolira is supported by professional Venture Capital funds which are familiar with innovations in healthcare and by the EU Horizon 2020 program for promising innovations.

The management team

General Management & Technology

  Rutger van Merkerk, PhD, MSc. 

CEO, founder

Has a wealth of experience in the medical device market, working as a business development manager for medical devices in the University Medical Center Utrecht since 2007. He identified and managed many device development projects. He successfully managed to bring two monitoring devices from idea to market; the Evalan SensiStep and the LivAssured Nightwatch.

Business Development, Market Access & Public Relations

  Annemarie Willems, MSc.

Chief Business Development, founder

Has over 25 years of marketing and sales experience in the international medical device market, always involved in realisation of innovative medical devices. With particularly long experience in planning/quoting and realization of concepts into manufactured single use products (Medisize), entrepreneurship and realization of innovative medical devices (Mount Medical).

Annemarie Willems

+ 31 6 22 97 89 72

Sales & Marketing

 Sjoerd Kruijff, MSc.

Chief Sales & Marketing 

Sjoerd is a strong health care professional with an over 15-year proven track record in Commercial Innovation, Corporate Venturing, and regular commercial activities such as marketing and sales. Sjoerd ‘s core capabilities are commercial strategy development (marketing and sales, Innovation), perfect execution: ability to convert strategy to business growth and market share. Sjoerd is a pure team player with a high energy level and innovative thinker who motivates teams and partners.

Sjoerd Kruijff

+ 31 6 38 29 41 47

 Tjeerd de Boorder, PhD

Chief Clinical Officer

Tjeerd has a background in biotechnology and zoology and has 6 years of experience as OR technician. He also worked  for 13 years at the department of medical technology and clinical physics of the university medical center Utrecht and obtained extensive experience in research and implementation of innovative medical technology.

Clinical implementation / Research

 Ilse Kant, PhD

Clinical specialist

Is a technical physician that performed her PhD research in the group of Prof. Dr. Slooter, at the department of  Intensive Care of University Medical Center Utrecht. She specialized in medical image analysis techniques and neuroimaging in the field of frailty and delirium in elderly patients. She continued as a postdoctoral researcher working on the CLEO study: Clinical Evaluation of DeltaScan, and joined Prolira as a Clinical Specialist in September, 2019.

+31 6 4806 2436

Market introduction team

Prolira’s market introduction team first focus is N-European hospitals. The team is supported by international industry advisors with a wealth of experience in the hospital vital signs monitoring market.

 Robin Benthem

Account manager West

Robin is sales professional with 16 years of sales experience in hospitals, clinics, and pharmacies. Robin has worked with a various set of stakeholders and has a proven track record in this field of expertise. Because of his extended sales experience and his technical background – combined with his enthusiasm and drive – customers see Robin as a partner rather than just a salesperson.

+31 6 14 72 17 58

 Arjen Heida

Account manager East

Arjen is eager to provide advice and support from a strategic perspective to healthcare professionals and hospitals in areas such as patient outcomes and healthcare costs. His advice and support are based on his extensive experience (since 2003) within the pharmaceutical industry as well as independent entrepreneur. Arjen’s drive is to improve healthcare quality, improved outcomes (both short and long term) for patients, healthcare professionals and hospitals.

Technical team

Prolira’s technical team consists of international EEG experts / algorithm developers / software specialists from Canada and the Netherlands.

Advisory board

  Prof. Dr. Arjen Slooter

Medical Advisor

Arjen Slooter is Professor of Intensive Care Neuropsychiatry at University Medical Center Utrecht the Netherlands, chairman of the delirium section of the American Society of Critical Care Medicine guideline committee, and president elect of the European Delirium Association since 2017. His research activities focus on delirium and on long-term neuropsychiatric outcome after critical illness or anesthesia and surgery. In his research he uses both epidemiological and neuroscientific (EEG, MRI) tools. He is a clinical advisor to Prolira without any financial personal interest in the company. Any (future) profits from EEG-based delirium monitoring will be used for scientific research only.

  Dr. Frans Leijten

EEG expert

Frans Leijten, MD, PhD, is neurologist and clinical neurophysiologist with valuable clinical and EEG expertise. Working most of his career with EEG based epilepsy diagnosis and epileptic surgery. He is head of the EEG department and the monitoring unit for invasive EEG recordings at the University Medical Center Utrecht. Frans Leijten has a special interest in innovative medical companies, and he contributes with his wealth of knowledge for the benefit of Prolira’s DeltaScan.

  Boudewijn Bollen

Medical Monitoring Industry expert

 Boudewijn Bollen is advisor to Prolira. As a former senior board member of American medical monitoring device companies, he is specialized in European market introduction and market growth for novel medical monitoring parameters and devices. He has made a major contribution to the market success of, among others:

– Aspect Medical, the company that has developed and marketed the BIS monitor (BIS monitor is a device that measures the depth of anesthesia during an operation using EEG). In 2009, Aspect Medical was sold to Covidien, now Medtronic;

– the Nellcor SpO2 sensor (the world’s first disposable oxygen saturation sensor, which nowadays is part of standard vital signs monitoring in every hospital).

Revision number: 1.1

Prolira BV
IJsselburcht 3
6825BS Arnhem
The Netherlands


Visiting address:
Padualaan 8
3584CH Utrecht
The Netherlands


T. +31 (0)85 06 01 656
E.  Info@prolira.com
W. www.prolira.com

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