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Medical Devices
Department of Engineering
February 11th 2015
Medical Devices
 What is a medical device
 Approvals required for studies involving medical
devices
 Who and how are they regulated
What is a medical device
 Medical Device covers all products, except
medicines, used in healthcare for the diagnosis,
prevention, monitoring or treatment of illness or
disability
Examples of medical
devices
 Implants
 Dressings
 Patient Monitoring equipment
 X ray systems
 Wheelchairs
 Hearing Aids
 Devices for blood glucose measurements
Examples of products that can be both a
medical device and non medical device
 Personal protective equipment
 Who are you protecting?
 what is the principal stated purpose of the product by the
manufacturer?
 Rubber/latex gloves
 Marigolds = general purpose so not medical device
 surgical gloves = medical device
Stand alone software
 Software which is not incorporated in another
medical device but has a medical purpose
 Directly controls apparatus (radiotherapy)
 Provides immediate decision triggering information
(blood glucose meters)
 Provides support for healthcare professional (ECG
interpretation)
Decision tree for
standalone software
 Is it a computer programme?
 Does the programme perform an action on data?
 Is it for the benefit of an individual patient - will it
evaluate patient data to support or influence the
medical care provided to that patient?
 Words associated with a medical device
 amplify, analysis, interpret, alarms, calculates,
controls, converts, detects, diagnose,
measures, monitors
 Software that applies some sort of automated
reasoning - calculation, dose calculation,
algorithm, clinicians guide
APPs as medical devices
 Software that provides personalised guidance
 makes use of information entered by the
patients, provided by point of care devices or
obtained via health records, if it affects the
treatment of the patient
 If the software performs a calculation or interprets
data and the healthcare provider does not review
the raw data = medical device
Intention to place on
market
Research with the intention to commercialise the
device or
place on the market  make available in return for
payment or free of charge, with a view to distribution,
use or both
Requires MHRA approval
Manufacturer
Person responsible for the design, manufacture,
packaging and labelling of a device before it is placed
on the market
In house manufacture
 No intention to put on the market or place into
service under the manufacturers name
 There is no transfer of ownership of the product or
intention to give to another NHS Trust
 Not covered by medical device regulations but may
be covered by general research requirements if
used in a hospital
 Any data gathered cannot be used in a future MHRA
submission
Working with
Addenbrookes
If the Chief Investigator is an Addenbrookes employee
or a researcher based at the Clinical School then this
MAY be considered in house manufacture
R&D approval
Clinical Engineering approval
Electronic safety standards must be met
Evidence of liability cover
Research in a clinical
setting
Any study recruiting participants from the NHS, using
patient data or patient tissue requires NRES ethics
approval and R&D approval
Any study using NHS facilities in a study requires R&D
approval
Any study using NHS staff as participants in a study
requires R&D approval and University ethics approval
Research with patients
 Sponsorship
 Confirmation of Funding
 Appropriate peer review
 Favourable ethical opinion letter
 Confirmation of insurance for your study
 Confirmation of honorary research contracts
 Appropriate agreements with third parties
Research Ethics
Proof of concept studies recruiting a small number of healthy
volunteers  internal ethics approval - but considered on a
case by case basis.
Studies recruiting a large group of healthy volunteers - no
longer a proof of concept study  MHRA assumption that
there is an intention to commercialise or put on market 
NRES ethics approval and MHRA approval
Clinical Investigation studies of medical device  NRES
ethics approval and may require MHRA approval
Insurance
Whatever the setting, if you are using a medical device
in any type of research, it is important to ensure that
appropriate insurance is in place
Insurance contact: Victoria Hollamby
Victoria.Hollamby@admin.cam.ac.uk
Medical devices and
regulation
 Devices are categorised into classes according to
the degree of risk inherent in the device
 Class I - low risk  apps, standalone software
 Class 11a and 11b  medium risk
 Class III high risk
 The conformity assessment and the CE mark
depend on the Class of the product
Classification
Depends upon a series of factors including:
How long the device is intended to be in continuous
use
Whether or not the device is invasive
Whether the device is implantable or active
Whether or not the device contains a substance
Non invasive device
Class I - In contact with injured skin  provide
mechanical barrier, eg plasters, wound gauze
Class IIa - Intended to manage micro-environment of
wound  control moisture at wound, eg hydrogel
dressings. Not for extensive wounds
Class IIb - Intended for wounds which breach dermis
and heal only by secondary intent  severe burns eg
temporary skin substitute
Class I
If you are satisfied that your medical device complies
with the requirements in the MDD, you must write a
statement to declare this  Declaration of Conformity
As 11th February 2015 new online application system
for Class I devices, (Device Online Registration
System, DORS) .
Class IIa and IIb
Safety and performance needs to be adequately
demonstrated  may need clinical investigation if
insufficient existing clinical data
Devices requiring clinical
investigation
Device is implantable or Class III medical device
Introducing new concept of device into medical
practice
Existing device modified so a novel feature may have
important phsyiological effects or it affects clinical
performance and safety of the device
Devices requiring clinical
investigation
Devices incorporating materials previously untested in
humans
Device, either CE marked or non CE marked, being
proposed for a new purpose or function
In vitro and/or animal testing of device cannot mimic
the clinical situation
New manufacturer, especially of a high risk device
Medical Device Directives
90/385/EEC  Active Implantable Device Directive
(AIMDD)  covers all powered implants or partial
implants that are left in the human body  pacemaker
93/42/EEC  Medical Device Directive (MDD)  covers
most other medical devices
98/79/EC  In-vitro Diagnostics Device (IVD)  covers
any device which is a reagent, instrument, appparatus,
for use in-vitor for examination of speciments from the
human body - hepatitis B testing kits
Organisations
Competent Authority  MHRA
Notified Body  CE Marking
Ethics  Health Research Authority NRES
NHS - R&D
MHRA
Ensures compliance with regulations
Evaluates adverse incident reports
Pre-clinical assessment of devices intended for clinical
trial
Designates the independent certification organisation
(notified bodies)
Notified Bodies
Check manufacturers of medium and high risk devices
have followed the requirement
Issue CE marks for these devices
Useful contacts
Research Governance Officer  Carolyn Read
cad50@medschl.cam.ac.uk 01223 769291
Research Governance Manager Addenbrookes
Hospital  Louise Stockley
louise.stockley@addenbrookes.nhs.uk
Useful websites
https://www.gov.uk/government/collections/regulatory-guidance-for-medical-
devices
http://ec.europa.eu/health/medical-
devices/files/meddev/2_4_1_rev_9_classification_en.pdf
http://www.hra.nhs.uk/
http://www.hra.nhs.uk/resources/before-you-apply/types-of-ethical-review/ethical-
review-of-investigations-of-medical-devices/

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medical devices for the safety standards and codes

  • 1. Medical Devices Department of Engineering February 11th 2015
  • 2. Medical Devices What is a medical device Approvals required for studies involving medical devices Who and how are they regulated
  • 3. What is a medical device Medical Device covers all products, except medicines, used in healthcare for the diagnosis, prevention, monitoring or treatment of illness or disability
  • 4. Examples of medical devices Implants Dressings Patient Monitoring equipment X ray systems Wheelchairs Hearing Aids Devices for blood glucose measurements
  • 5. Examples of products that can be both a medical device and non medical device Personal protective equipment Who are you protecting? what is the principal stated purpose of the product by the manufacturer? Rubber/latex gloves Marigolds = general purpose so not medical device surgical gloves = medical device
  • 6. Stand alone software Software which is not incorporated in another medical device but has a medical purpose Directly controls apparatus (radiotherapy) Provides immediate decision triggering information (blood glucose meters) Provides support for healthcare professional (ECG interpretation)
  • 7. Decision tree for standalone software Is it a computer programme? Does the programme perform an action on data? Is it for the benefit of an individual patient - will it evaluate patient data to support or influence the medical care provided to that patient?
  • 8. Words associated with a medical device amplify, analysis, interpret, alarms, calculates, controls, converts, detects, diagnose, measures, monitors Software that applies some sort of automated reasoning - calculation, dose calculation, algorithm, clinicians guide APPs as medical devices
  • 9. Software that provides personalised guidance makes use of information entered by the patients, provided by point of care devices or obtained via health records, if it affects the treatment of the patient If the software performs a calculation or interprets data and the healthcare provider does not review the raw data = medical device
  • 10. Intention to place on market Research with the intention to commercialise the device or place on the market make available in return for payment or free of charge, with a view to distribution, use or both Requires MHRA approval
  • 11. Manufacturer Person responsible for the design, manufacture, packaging and labelling of a device before it is placed on the market
  • 12. In house manufacture No intention to put on the market or place into service under the manufacturers name There is no transfer of ownership of the product or intention to give to another NHS Trust Not covered by medical device regulations but may be covered by general research requirements if used in a hospital Any data gathered cannot be used in a future MHRA submission
  • 13. Working with Addenbrookes If the Chief Investigator is an Addenbrookes employee or a researcher based at the Clinical School then this MAY be considered in house manufacture R&D approval Clinical Engineering approval Electronic safety standards must be met Evidence of liability cover
  • 14. Research in a clinical setting Any study recruiting participants from the NHS, using patient data or patient tissue requires NRES ethics approval and R&D approval Any study using NHS facilities in a study requires R&D approval Any study using NHS staff as participants in a study requires R&D approval and University ethics approval
  • 15. Research with patients Sponsorship Confirmation of Funding Appropriate peer review Favourable ethical opinion letter Confirmation of insurance for your study Confirmation of honorary research contracts Appropriate agreements with third parties
  • 16. Research Ethics Proof of concept studies recruiting a small number of healthy volunteers internal ethics approval - but considered on a case by case basis. Studies recruiting a large group of healthy volunteers - no longer a proof of concept study MHRA assumption that there is an intention to commercialise or put on market NRES ethics approval and MHRA approval Clinical Investigation studies of medical device NRES ethics approval and may require MHRA approval
  • 17. Insurance Whatever the setting, if you are using a medical device in any type of research, it is important to ensure that appropriate insurance is in place Insurance contact: Victoria Hollamby Victoria.Hollamby@admin.cam.ac.uk
  • 18. Medical devices and regulation Devices are categorised into classes according to the degree of risk inherent in the device Class I - low risk apps, standalone software Class 11a and 11b medium risk Class III high risk The conformity assessment and the CE mark depend on the Class of the product
  • 19. Classification Depends upon a series of factors including: How long the device is intended to be in continuous use Whether or not the device is invasive Whether the device is implantable or active Whether or not the device contains a substance
  • 20. Non invasive device Class I - In contact with injured skin provide mechanical barrier, eg plasters, wound gauze Class IIa - Intended to manage micro-environment of wound control moisture at wound, eg hydrogel dressings. Not for extensive wounds Class IIb - Intended for wounds which breach dermis and heal only by secondary intent severe burns eg temporary skin substitute
  • 21. Class I If you are satisfied that your medical device complies with the requirements in the MDD, you must write a statement to declare this Declaration of Conformity As 11th February 2015 new online application system for Class I devices, (Device Online Registration System, DORS) .
  • 22. Class IIa and IIb Safety and performance needs to be adequately demonstrated may need clinical investigation if insufficient existing clinical data
  • 23. Devices requiring clinical investigation Device is implantable or Class III medical device Introducing new concept of device into medical practice Existing device modified so a novel feature may have important phsyiological effects or it affects clinical performance and safety of the device
  • 24. Devices requiring clinical investigation Devices incorporating materials previously untested in humans Device, either CE marked or non CE marked, being proposed for a new purpose or function In vitro and/or animal testing of device cannot mimic the clinical situation New manufacturer, especially of a high risk device
  • 25. Medical Device Directives 90/385/EEC Active Implantable Device Directive (AIMDD) covers all powered implants or partial implants that are left in the human body pacemaker 93/42/EEC Medical Device Directive (MDD) covers most other medical devices 98/79/EC In-vitro Diagnostics Device (IVD) covers any device which is a reagent, instrument, appparatus, for use in-vitor for examination of speciments from the human body - hepatitis B testing kits
  • 26. Organisations Competent Authority MHRA Notified Body CE Marking Ethics Health Research Authority NRES NHS - R&D
  • 27. MHRA Ensures compliance with regulations Evaluates adverse incident reports Pre-clinical assessment of devices intended for clinical trial Designates the independent certification organisation (notified bodies)
  • 28. Notified Bodies Check manufacturers of medium and high risk devices have followed the requirement Issue CE marks for these devices
  • 29. Useful contacts Research Governance Officer Carolyn Read cad50@medschl.cam.ac.uk 01223 769291 Research Governance Manager Addenbrookes Hospital Louise Stockley louise.stockley@addenbrookes.nhs.uk