CLEWS® Medical is an R&D and MedTech company with a mission to transform the world of clinical health assessments for children and adults.

CLEWS® multi-sensor medical device will revolutionize the capture, calculation and transmission of Clinical Early Warning Scores.

CLEWS® will enable Digital Triage using real-time knowledge to determine the right care at the right time at the right place. 

The Need

Clinical Early Warning Scores monitor how well the body is coping with an illness.

They are used throughout the NHS and in many parts of the world to help doctors and other medical professionals assess the severity and progress of an acute illness or deterioration in the condition of a chronic illness.

The standard Clinical Early Warning Scores in the UK, usually considered to be a mandatory assessment undertaken by healthcare professionals when assessing a patient are:

Paediatric Early Warning Score (PEWS) for children

National Early Warning Score (NEWS2) for adults

Each year in the UK alone, approximately 10million of these assessments are performed in just two of the key clinical sectors, namely Paediatric Casualty and the Ambulance Service.

The current procedures to generate Clinical Early Warning Scores are limited to taking multiple individual measurements and the subsequent manual recording. These are undertaken only by health professionals.

CLEWS® will use real-time critical objective information to support all healthcare professionals in the management of a patient’s illness. The scores will be transmitted to healthcare professionals for them to make rapid clinical assessments and decisions, and to provide care management support.

In the future, carers of children and adults with acute or long term conditions, with additional professional advice and support will be enabled to use CLEWS® to manage a patient more independently than is currently possible.

The Problem

There are 6 separate readings using 5 different instruments:

Fig 1 – Heart Rate & O2 Saturation
Fig 2 – Blood Pressure
Fig 3 – Respiratory Rate
Fig 4 – Temperature
Fig 5 – Capillary Refill

And then separately perform 2 structured observation assessments of breathing and consciousness.

And then manually plot the results on a graph that gives a score which  indicates severity  of illness with implications as to what needs  to be done in terms of observation, treatment and place of care.

Fig 6 – Recording and Plotting Results

Although the underlying logic for generating these scores is powerful, and the potential benefit very obvious, with the traditional methods of determining Clinical Early Warning Scores, and with limited resources, there are real problems such as:

  • Wasteful use of professional time
  • Potential bottlenecks in the system when there are staff shortages
  • Can be inaccurate for both practical and theoretical reasons
  • Cannot be repeated sufficiently often to provide reliable trend information
  • Restricted to use in small segments of health systems 
  • Not part of integrated pathways of patient care 

All of these problems result in the inefficient use of this important clinical tool creating:

Unnecessary and costly morbidity  and mortality

Unnecessary and costly care or escalation of care

Our Solution

The design of CLEWS® makes it suitable for use in many health and social care settings.

Ambulance – Emergency Services – Hospitals – Clinics – General Practice – Pharmacies  – Telemedicine

At Home – Care Homes – Preschools – Schools – Military Medicine – Occupational Health – Sports Medicine

PEWS and NEWS2 scores are generated by calculating and integrating multiple physiological assessments:

  • Heart Rate
  • Respiratory Rate
  • Systolic Blood Pressure
  • Temperature Extremes
  • Oxygen Saturation
  • Capillary Refill – PEWS only
  • Inspired Oxygen – NEWS2 only
  • Breathing Difficultly and Level of Consciousness observations – PEWS and NEWS2

CLEWS® will automatically and repeatedly take more accurate readings than is currently available.

It will calibrate and score clinical values in full compliance with Paediatric Early Warning Scores  and National Early Warning Scores, and will transmit to any smartphone, tablet or computer device.

This will increase the accuracy of the readings and significantly increase the efficiency of making crucial decisions related to patient management.

And easy way for getting PEWS and NEW2 results into the NHS patient care record.

The Team

CLEWS® Medical is proud to have the support of, and is in active collaboration with, some of the best medical and technology experts working in some of the leading centres of excellence relevant to this area of R&D and MedTech. These centres include the NIHR Children and Young People MedTech Co-operative, the National Centre for Healthcare Photonics (part of CPI Sedgefield), Durham University, Teesside University, Sheffield Children’s NHS Foundation Trust and Sheffield Teaching Hospitals NHS Foundation Trust.

We also communicate with a number of special interest groups including the Sepsis Trust.

Dr Michael Ross, Clews Medical

Chief Medical Officer and Founder

Michael has been a senior GP and Trainer for many years and has served on various Health Authority, Research and Training Committees.

He has 35 years in clinical medical practice working in high pressure environments of both General Practice and Accident and Emergency Departments to deliver care to a wide range of patients. He has worked in Jamaica (Montego Bay and Kingston), Brixton London, Toxteth Liverpool, Manningham Bradford and Todmorden.  His relevant qualifications and experience include those in hospital medicine, general practice and community medicine and tropical disease. He has direct experience of the clinical need and a deep understanding of the subject matter.

Michael has always been interested in observing clinical systems, learning from patients and interested in exploring innovation, undertaking audit and research and implementing service improvements. In his early career he has worked in Jamaica including a polyclinic in a poor area of Kingston. Later after returning to the UK and after obtaining an MSc in community medicine Michael elected to train as a GP. Whilst working in Toxteth Liverpool he served on the LMC and FPC and supported the then embryonic academic department of General Practice. After moving to Bradford and taking over a singlehanded inner-city practice, he learned Urdu and in 1992 was selected by the RCGP to host a visit by Prince Charles. Using his qualification in Community Medicine he has always adopted a primary care and preventative approach to clinical care. Consequently, Michael has a long and wide experience of clinical medicine which includes 35 years of General Practice in various locations including both inner city and market town locations. He also has experience in working in Accident and Emergency Departments both as an A & E doctor and primary care triage GP.

Finally, he has substantial experience of working for GP Out of Hours service. He has been a GP Trainer and also Mentor to nursing and paramedic students undertaking the Advanced Health Care Practitioner MSc from Huddersfield University. In all of these roles during his career he has become aware of the challenges of identifying and managing acutely ill children and adults within the real-life workload constraints of such clinical contacts. He also has experience of contributing to the development of clinical software.

Elizabeth A Crocker

Elizabeth A Crocker RN BSN BSc MSc MBA FRSM
Chief Executive Officer and Data Protection Officer

Elizabeth is a healthcare entrepreneur with over 30 years of clinical and healthcare business experience, working with international healthcare systems including the US, the UK, Belgium, Brazil, Canada, and the Netherlands. For 16 years she was an Open Heart/Cardiac Transplant and Left Heart Assist Device (LVAD) Critical Care nurse specialist and clinical instructor to medical and nursing students. She has a deep understanding of life sciences, digital health, integrated care and informatics, and has led numerous strategy and risk reviews, business case developments and technology design and implementation projects. She has extensive knowledge of acute, primary, and community healthcare, electronic health records, population health risk assessment measurement and reporting tools, and vast knowledge of clinical and patient-reported outcomes, having developed one of the first outcomes reporting national databases in the United States.

Elizabeth is passionate about the human application of technology in terms of user experience, computer vision, artificial intelligence, machine learning and connected digital health to improve outcomes from diagnoses to treatment. Elizabeth was commissioned by the World Bank Group to provide case management consultancy to the Brazilian healthcare services authority, San Paolo. She was a Charter Member of the Workgroup for Electronic Data Interchange (WEDI) and the American National Standards Institute, ANSI X12, committee to establish HIPAA compliant patient record data sets.

Elizabeth is an accomplished pubic speaker and healthcare reform strategy and policy expert who co-authored, at the request of former US Senator Orin Hatch and former US Congressman Christopher Cox, an award-winning Congressional Handbook on Self-Insurance presented to the US Senate and House Congressional hearings on Healthcare Reform during the Clinton administration.

Andrew Watson

Andrew Watson BEng MSc PhD Candidate
Senior Advisor for Product Development

Andrew Watson is a multidisciplinary engineer with 24-years of experience working within SMEs on the design, development and manufacture of sensors and instrumentation. During this time he has gained a wealth of first-hand experience in all aspects of new product development and in the improvement of the underlying processes.

As principal systems engineer at Analox Ltd, Andrew led the design, development and productionisation of the atmosphere monitoring system for the Royal Navy’s new Dreadnought class nuclear submarine. Having delivered the largest project in the company’s history and seeking a new challenge, Andrew has embarked on a PhD in biomedical engineering at Teesside University.

Andrew holds a B. Eng. in Mechanical Engineering awarded by the University of Manchester’s Institute of Science and Technology, and a M.Sc. in Biotechnology awarded by Teesside University.


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Contact Us

CLEWS® Medical Limited Registered Office
31 Chertsey Street
Guildford, Surrey
United Kingdom

CLEWS® Medical Limited Business Office
Business Durham
NETPark Plexus
Thomas Wright Way
Sedgefield TS21 3FD
United Kingdom

Company No. 04415777