Updated: 3rd September 2026
Reviewed by: David Small BSc (Hons), MSc, MTOPRA (Founder and CEO)
UK Medical Device Regulations and Medical Device Classification
Medical devices placed on the market in Great Britain (England, Scotland and Wales) are regulated under the UK Medical Devices Regulations 2002 (SI 2002 No. 618), as amended (UK MDR 2002).
The UK MDR 2002 establishes a risk-based classification system for medical devices. The classification of a device determines many of the regulatory requirements that apply to it, including the appropriate conformity assessment route and whether assessment by a UK Approved Body is required before a UKCA mark can be applied.
Medical devices are divided into four principal risk classes:
- Class I – generally lower-risk medical devices
- Class IIa – generally lower-medium-risk medical devices
- Class IIb – generally higher-medium-risk medical devices
- Class III – generally the highest-risk medical devices
Class I devices may also fall within specific subcategories, including devices supplied sterile (Class Is), devices with a measuring function (Class Im) and reusable surgical instruments (Class Ir). These characteristics can affect the conformity assessment requirements that apply to the device.
Classification is not determined simply by the type or name of a product. Manufacturers must consider the device’s intended purpose and apply the relevant classification rules within the UK MDR 2002.
Factors that can influence classification include:
- whether the device is invasive or non-invasive;
- the duration of contact with the patient;
- whether it is surgically invasive;
- whether it is implantable;
- whether it is an active medical device;
- the part of the body with which it interacts;
- whether it administers or exchanges substances or energy; and
- particular characteristics or intended purposes covered by specific classification rules.
Correct classification is therefore one of the first important regulatory decisions a medical device manufacturer must make when determining the route to market in Great Britain.
Need an Introduction to UK Medical Device Regulations?
This article focuses on medical device classification in the UK. If you're looking for a complete overview of UK medical device regulations, including UKCA marking, MHRA registration, UK Responsible Person requirements, classification rules and post-market surveillance, read our Complete Guide to UK Medical Device Regulations.
UK MDR and EU MDR Classification Are Not Necessarily the Same
Manufacturers should not assume that a medical device will automatically have the same classification in Great Britain as it does under the EU Medical Device Regulation (EU MDR 2017/745).
The current UK medical device regulatory framework is based on the UK MDR 2002, which incorporates classification provisions derived from the former European medical device directives. The EU MDR introduced changes to a number of classification rules, meaning that the classification of certain devices may differ between the Great Britain and European Union markets.
Manufacturers intending to place a device on both markets should therefore assess classification separately against the applicable UK and EU regulatory requirements.
Need to Classify a Medical Device for the European Union?
This guide focuses on medical device classification under the UK MDR 2002. If you're placing a medical device on the EU market, classification must be determined separately under EU MDR 2017/745. Read our Complete Guide to EU Medical Device Classification, including the MDR classification rules and Class I, IIa, IIb and III devices.
How Are Medical Devices Classified in the UK?
Medical device classification in Great Britain is based on the level of risk associated with the device and its intended purpose. Manufacturers are responsible for determining the appropriate classification of their device by applying the classification rules contained within the UK Medical Devices Regulations 2002 (UK MDR 2002).
The classification process begins with a clearly defined intended purpose. The manufacturer must then consider the design and characteristics of the device and apply the relevant classification rules.
Factors That Determine Medical Device Classification
Several factors can influence the classification of a medical device, including:
- Duration of use – whether the device is intended for transient, short-term or long-term use.
- Invasiveness – whether the device enters the body and, if so, how it enters the body.
- Surgical invasiveness – whether the device enters the body through or in the context of a surgical operation.
- Implantability – whether the device is intended to remain within the human body after a procedure.
- Active operation – whether the device depends on a source of energy for its operation.
- Anatomical location – where in or on the body the device is intended to be used.
- Interaction with the body – including whether the device administers, removes or exchanges substances or energy.
- Intended purpose – the medical purpose, patient population and conditions of use specified by the manufacturer.
- Special characteristics – whether particular classification rules apply because of the device’s function, composition or intended use.
Where more than one classification rule applies to a device, the rule resulting in the higher classification generally determines the overall classification.
UK Medical Device Classification Table
The four principal medical device classes range from Class I devices, which generally present the lowest level of risk, through to Class III devices, which generally present the highest level of risk.
| Classification | General Risk Level | Typical Examples | UK Approved Body Involvement |
|---|---|---|---|
| Class I | Lower risk | Wheelchairs, examination lights and non-sterile dressings | Generally not required |
| Class Is | Lower risk – supplied sterile | Sterile dressings and other sterile Class I devices | Required for aspects relating to sterility |
| Class Im | Lower risk – measuring function | Certain Class I devices with a measuring function | Required for aspects relating to the measuring function |
| Class Ir | Lower risk – reusable surgical instrument | Reusable surgical instruments | Required for aspects relating to reuse |
| Class IIa | Lower-medium risk | Certain diagnostic and therapeutic devices | Required |
| Class IIb | Higher-medium risk | Certain infusion pumps, ventilators and longer-term invasive devices | Required |
| Class III | Highest risk | Heart valves and certain implantable devices | Required |
The examples above are illustrative only. A device should never be classified solely by comparing it with another product. Classification must be determined by considering the manufacturer’s intended purpose and applying the applicable classification rules to the specific device.
What Happens if More Than One Classification Rule Applies?
A medical device may fall within the scope of more than one classification rule. Where several rules, or several parts of the same rule, apply based on the device’s intended purpose, the provision resulting in the highest classification should generally be applied.
Manufacturers should document the classification decision and the rationale for the rules applied within the device’s technical documentation.
Correct classification is particularly important because it determines the conformity assessment route that must be followed and the extent to which a UK Approved Body may need to be involved before the device can be UKCA marked and placed on the Great Britain market.
UK Medical Device Classification Rules
The classification rules for general medical devices in Great Britain are set out in the UK Medical Devices Regulations 2002 (UK MDR 2002). These rules consider the intended purpose and characteristics of the device to determine whether it falls within Class I, Class IIa, Class IIb or Class III.
The rules can broadly be divided into those covering non-invasive devices, invasive devices, active devices and devices with particular characteristics or intended purposes.
Manufacturers should consider all classification rules that could apply to their device rather than selecting a classification based solely on perceived risk or comparison with similar products.
Non-Invasive Medical Devices
Non-invasive devices are generally those that do not enter the body. Many non-invasive devices fall within Class I, although the classification can increase depending on their intended purpose and how they interact with the patient.
Factors that may result in a higher classification include whether the device:
- channels or stores blood, body liquids, tissues, liquids or gases for subsequent administration to the body;
- modifies the biological or chemical composition of blood, other body liquids or liquids intended for infusion into the body; or
- comes into contact with injured skin and is intended to manage wounds with particular characteristics.
For example, a simple non-invasive device may be Class I, while a device used to modify blood or another body liquid before it is returned to the patient may fall within a higher classification.
Invasive Medical Devices
An invasive device is a device that penetrates inside the body, either through a body orifice or through the surface of the body.
Classification depends on factors including how the device enters the body, where it is used and how long it is intended to remain in contact with the patient.
For classification purposes, duration of use is generally considered as:
- Transient – normally intended for continuous use for less than 60 minutes.
- Short term – normally intended for continuous use for no more than 30 days.
- Long term – normally intended for continuous use for more than 30 days.
The longer an invasive device remains in the body, and the greater the potential risk associated with its intended use, the more likely it is that a higher classification rule will apply.
Surgically Invasive and Implantable Devices
Surgically invasive devices enter the body through the surface of the body with the aid or in the context of a surgical operation. Implantable devices are intended to be introduced into the human body and remain in place following the procedure.
These devices are subject to specific classification rules because of the risks associated with surgical procedures, prolonged contact with the body and the anatomical locations in which they may be used.
Classification can depend on:
- duration of use;
- whether the device is reusable;
- the anatomical location in which it is used;
- whether it has a biological effect or is absorbed;
- whether it undergoes chemical change within the body; and
- whether it administers medicinal products.
Certain implantable devices and devices associated with particularly high-risk anatomical locations may therefore fall within Class IIb or Class III.
Active Medical Devices
An active medical device generally depends on a source of electrical energy or another source of energy, other than energy generated directly by the human body or gravity, to operate.
Active devices can include equipment used for diagnosis, monitoring or treatment.
Their classification depends on their intended purpose and the potential consequences of the energy they deliver or the information they provide. Relevant considerations can include whether the device:
- administers or exchanges energy with the human body;
- controls or monitors the performance of another active device;
- administers or removes medicines, body liquids or other substances; or
- is intended for diagnostic or monitoring purposes.
An active device is therefore not automatically Class IIa or Class IIb simply because it uses electricity. The applicable classification rule must be assessed against its specific intended purpose and mode of action.
Special Classification Rules
The UK MDR 2002 also contains classification provisions for devices with particular characteristics or intended purposes.
These can include devices incorporating certain medicinal substances, devices used for contraception or prevention of sexually transmitted diseases, devices intended specifically for disinfecting medical devices, and certain devices manufactured using tissues or derivatives of animal origin.
Where a special rule applies, it can result in a higher classification than might otherwise be expected from the general characteristics of the device.
Manufacturers should therefore review the complete set of applicable classification rules before confirming the classification of a medical device.
Difference between Medical Device Classes
Class I Medical Devices UK
Class I medical devices generally represent the lowest-risk category of medical device under the UK Medical Devices Regulations 2002 (UK MDR 2002).
Examples can include certain non-invasive devices, mobility aids and other products where the potential risk to the patient or user is relatively low. However, classification must always be determined by applying the relevant UK MDR classification rules to the manufacturer’s intended purpose for the specific device.
Examples of Class I Medical Devices
Depending on their intended purpose and characteristics, examples of products that may fall within Class I include:
- wheelchairs;
- walking aids;
- examination lights;
- certain non-sterile dressings;
- hospital beds;
- certain external patient-support products; and
- some simple non-invasive medical devices.
These examples are illustrative only. Two devices that appear similar may have different classifications because of differences in their intended purpose, duration of use, invasiveness or other characteristics.
Class Is – Sterile Class I Medical Devices
A Class I device supplied in a sterile condition is commonly referred to as Class Is.
Although the underlying device remains Class I, UK Approved Body involvement is required for the aspects of conformity assessment relating to establishing, securing and maintaining sterile conditions.
Manufacturers must therefore be able to demonstrate appropriate control and validation of the processes used to ensure that the device is supplied sterile.
Class Im – Class I Devices With a Measuring Function
Class I devices with a measuring function are commonly referred to as Class Im devices.
UK Approved Body involvement is required for the aspects of conformity assessment concerned with the device’s measuring function.
Manufacturers should be able to demonstrate that the measuring function performs appropriately and that relevant design, manufacturing and quality controls are in place.
Class Ir – Reusable Surgical Instruments
Reusable surgical instruments are commonly referred to as Class Ir devices.
These are surgical instruments intended to be reused following appropriate procedures such as cleaning, disinfection, sterilisation, maintenance and functional testing.
Where the applicable UKCA route requires Approved Body involvement for reusable surgical instruments, the assessment is limited to the aspects relating to reuse of the device, particularly cleaning, disinfection, sterilisation, maintenance and functional testing, together with the associated instructions for use.
Do Class I Medical Devices Need a UK Approved Body?
Many Class I medical devices can follow a self-declaration route for UKCA marking without the involvement of a UK Approved Body.
However, manufacturers should not assume that this applies to every Class I device. Devices supplied sterile, devices with a measuring function and reusable surgical instruments can require third-party conformity assessment for the relevant aspects of the device.
The manufacturer remains responsible for meeting the applicable regulatory requirements, including preparing the required technical documentation, demonstrating conformity with the relevant essential requirements, completing the appropriate conformity assessment procedure and drawing up the required declaration of conformity.
Where the manufacturer is based outside the UK, a UK Responsible Person must also be appointed where required before the device is registered with the MHRA and placed on the Great Britain market.
Class IIa Medical Devices UK
Class IIa medical devices generally represent a moderate level of risk under the UK Medical Devices Regulations 2002 (UK MDR 2002). They are subject to greater regulatory oversight than Class I devices and normally require the involvement of a UK Approved Body when following the UKCA conformity assessment route.
A device may be classified as Class IIa because of factors such as its intended purpose, duration of use, degree of invasiveness or the way in which it interacts with the patient.
Examples of Class IIa Medical Devices
Depending on their intended purpose and characteristics, examples of devices that may fall within Class IIa include:
- certain short-term invasive devices;
- certain surgically invasive devices;
- some active diagnostic devices;
- some active therapeutic devices;
- certain hearing aids;
- certain ultrasound equipment; and
- some devices used to administer or remove substances from the body.
These examples are illustrative only. Classification must be determined by applying the relevant UK MDR 2002 classification rules to the specific intended purpose and characteristics of the device.
What Makes a Medical Device Class IIa?
Class IIa can apply where the characteristics or intended use of a device introduce a greater level of potential risk than would normally be associated with a Class I device.
For example, classification may be influenced by whether the device:
- is invasive and intended to remain in contact with the patient for a particular period;
- is surgically invasive;
- supplies energy to the patient;
- is used for diagnosis or monitoring;
- channels or stores substances for subsequent administration to the patient; or
- interacts with the body in a way covered by one of the Class IIa classification rules.
The complete classification rationale should be documented by the manufacturer as part of the device’s technical documentation.
Do Class IIa Medical Devices Need a UK Approved Body?
For the UKCA route, Class IIa medical devices normally require conformity assessment involving a UK Approved Body.
The manufacturer must demonstrate that the device meets the applicable requirements of the UK MDR 2002 and follow an appropriate conformity assessment procedure before applying the UKCA marking.
The regulatory evidence required will depend on the device, but can include:
- technical documentation;
- risk management documentation;
- clinical evaluation;
- verification and validation evidence;
- appropriate biological safety evaluation where relevant;
- labelling and instructions for use;
- post-market surveillance arrangements; and
- an appropriate quality management system.
The Approved Body assesses the relevant aspects of conformity before the manufacturer can complete the applicable UKCA conformity assessment process.
Manufacturers based outside the UK must also appoint a UK Responsible Person where required and ensure the device is appropriately registered with the MHRA before being placed on the Great Britain market.
Class IIb Medical Devices UK
Class IIb medical devices generally represent a higher level of risk than Class IIa devices under the UK Medical Devices Regulations 2002 (UK MDR 2002). They normally require conformity assessment involving a UK Approved Body when following the UKCA route.
Classification as Class IIb can result from factors such as longer duration of use, greater invasiveness, the delivery of potentially hazardous energy or substances, or the potential consequences if the device fails to perform as intended.
Examples of Class IIb Medical Devices
Depending on their intended purpose and characteristics, examples of devices that may fall within Class IIb include:
- certain ventilators;
- certain infusion pumps;
- some long-term invasive devices;
- certain active therapeutic devices;
- some devices used to administer medicines or other substances;
- certain contraceptive devices; and
- some surgical devices with higher-risk intended purposes.
These examples are illustrative only. Classification must be determined by applying the relevant UK MDR 2002 classification rules to the specific device and its intended purpose.
What Makes a Medical Device Class IIb?
A device may fall within Class IIb where its intended purpose or characteristics create a level of risk requiring greater regulatory control than Class I or Class IIa.
Factors that can lead to Class IIb classification include whether the device:
- is intended for long-term invasive use;
- is surgically invasive for a particular duration or purpose;
- administers or removes medicines, body liquids or other substances in a potentially hazardous manner;
- supplies energy to the patient in a potentially hazardous way;
- controls or monitors certain therapeutic devices;
- is intended for contraception or prevention of sexually transmitted diseases; or
- falls within another classification rule that specifically results in Class IIb.
The manufacturer’s classification rationale should identify the applicable rule or rules and explain why Class IIb is appropriate.
Do Class IIb Medical Devices Need a UK Approved Body?
Class IIb medical devices following the UKCA route normally require conformity assessment by a UK Approved Body.
The manufacturer must establish sufficient evidence to demonstrate that the device complies with the applicable requirements of the UK MDR 2002. Depending on the device, this can include:
- comprehensive technical documentation;
- risk management in accordance with the applicable requirements;
- clinical evaluation and supporting clinical evidence;
- verification and validation testing;
- biological safety evaluation where applicable;
- electrical safety and performance testing where applicable;
- usability and human factors evidence where relevant;
- labelling and instructions for use;
- post-market surveillance arrangements; and
- an appropriate quality management system.
The conformity assessment requirements for Class IIb devices are generally more extensive than for lower-risk devices, reflecting the increased potential consequences for patients or users if the device fails or does not perform as intended.
Manufacturers located outside the UK must also appoint a UK Responsible Person where required and ensure that the device is appropriately registered with the MHRA before it is placed on the Great Britain market.
Class III Medical Devices UK
Class III medical devices generally represent the highest-risk category of medical device under the UK Medical Devices Regulations 2002 (UK MDR 2002). These devices are subject to the highest level of regulatory scrutiny and normally require conformity assessment involving a UK Approved Body when following the UKCA route.
Class III classification can apply where the nature, intended purpose or characteristics of a device present particularly significant potential risks to the patient, including certain implantable devices and devices associated with critical anatomical locations or functions.
Examples of Class III Medical Devices
Depending on their intended purpose and characteristics, examples of devices that may fall within Class III include:
- certain heart valves;
- certain cardiovascular implants;
- some devices that come into direct contact with the central circulatory system;
- certain devices that come into direct contact with the central nervous system;
- some implantable devices;
- certain devices incorporating a medicinal substance where the substance has an action ancillary to that of the device; and
- other devices that meet the applicable highest-risk classification rules.
These examples are illustrative only. A device must be classified by applying the relevant UK MDR 2002 classification rules to its specific intended purpose and characteristics.
What Makes a Medical Device Class III?
Class III classification can apply where the potential consequences associated with the use or failure of a device are particularly significant.
Factors that may result in Class III classification include whether the device:
- is intended to come into direct contact with the heart or central circulatory system for certain purposes;
- is intended to come into direct contact with the central nervous system;
- has a biological effect or is wholly or mainly absorbed in certain circumstances;
- incorporates a medicinal substance that has an action ancillary to that of the device;
- is an implantable device to which a Class III rule applies; or
- meets another specific classification rule resulting in Class III.
The manufacturer should clearly identify the applicable classification rule or rules and document the rationale supporting the Class III classification within the device’s technical documentation.
Do Class III Medical Devices Need a UK Approved Body?
Class III medical devices following the UKCA route require conformity assessment involving a UK Approved Body.
Because Class III represents the highest-risk medical device category, manufacturers should expect a high level of scrutiny of the evidence demonstrating the device’s safety and performance.
Depending on the device, the regulatory evidence can include:
- comprehensive technical documentation;
- risk management documentation;
- clinical evaluation and sufficient clinical evidence;
- verification and validation testing;
- biological safety evaluation where applicable;
- electrical safety and performance testing where applicable;
- usability and human factors evidence where relevant;
- information supplied with the device, including labelling and instructions for use;
- post-market surveillance and vigilance arrangements; and
- an appropriate quality management system.
The extent and nature of the evidence required will depend on the specific device, its intended purpose, technology and associated risks.
Manufacturers should consider classification and the resulting conformity assessment requirements early in product development. Incorrect classification can significantly affect the regulatory strategy, evidence requirements, cost and timescale for bringing a device to market.
Manufacturers established outside the UK must also appoint a UK Responsible Person where required and ensure that the device is appropriately registered with the MHRA before it is placed on the Great Britain market.
Need Help With UK Medical Device Classification?
Determining the correct medical device classification is an important first step in developing an appropriate regulatory strategy for the Great Britain market.
Patient Guard can support medical device manufacturers with the assessment and documentation of device classification under the UK Medical Devices Regulations 2002 (UK MDR 2002).
Our regulatory specialists can help you:
- review your device and its intended purpose;
- identify the applicable UK medical device classification rules;
- determine whether your device falls within Class I, Class IIa, Class IIb or Class III;
- assess whether Class Is, Im or Ir requirements apply;
- prepare a documented classification rationale;
- identify whether UK Approved Body involvement is required;
- determine the appropriate UKCA conformity assessment route;
- assess potential differences between UK MDR and EU MDR classification; and
- identify the regulatory documentation and evidence required for your route to market.
Where required, Patient Guard can also provide ongoing support with technical documentation, clinical evaluation, biological evaluation, risk management, quality management systems, post-market surveillance, MHRA registration and UK Responsible Person services.
If you are unsure how your medical device should be classified in the UK, our regulatory team can review your product, intended purpose and applicable classification rules and help you determine the appropriate route to market.
What's next after device Classification
Once you have determined the correct classification of your medical device, the next step is to establish the regulatory pathway required to place the device on the Great Britain market.
Your device classification influences the conformity assessment route you must follow, whether a UK Approved Body is required and the level of regulatory evidence needed to demonstrate compliance with the UK Medical Devices Regulations 2002 (UK MDR 2002).
Depending on your device and classification, the next steps can include:
1. Confirm the Applicable Regulatory Requirements
Identify the requirements of the UK MDR 2002 that apply to your device, including the relevant essential requirements and conformity assessment procedure.
2. Establish a Quality Management System
Depending on the classification and conformity assessment route, an appropriate quality management system may be required. ISO 13485 is the internationally recognised quality management system standard for medical device manufacturers and is commonly used to support regulatory compliance.
3. Prepare Your Technical Documentation
Manufacturers must maintain technical documentation demonstrating that the device meets the applicable regulatory requirements.
Depending on the device, this can include its intended purpose, design and manufacturing information, risk management, verification and validation, clinical evidence, biological safety, labelling and post-market surveillance documentation.
4. Compile Clinical Evidence
Medical devices require appropriate clinical evidence to support their safety and performance. This will normally include a clinical evaluation based on the characteristics, intended purpose and available evidence for the device.
5. Complete Conformity Assessment
The applicable conformity assessment procedure depends partly on the classification of the device.
Many Class I devices can follow a self-declaration route, while devices requiring third-party conformity assessment will need the involvement of a UK Approved Body when following the UKCA route.
6. Prepare the Declaration of Conformity and Apply the Appropriate Marking
Once the applicable conformity assessment requirements have been successfully completed, the manufacturer can prepare the required declaration of conformity and apply the appropriate conformity marking in accordance with the applicable regulatory route.
7. Appoint a UK Responsible Person if Required
Manufacturers that are not established in the UK must appoint a UK Responsible Person to carry out the responsibilities specified under the UK regulatory framework.
8. Register the Device With the MHRA
Medical devices must be registered with the Medicines and Healthcare products Regulatory Agency (MHRA) in accordance with the applicable registration requirements before being placed on the Great Britain market.
9. Maintain Post-Market Compliance
Regulatory responsibilities continue after a device has been placed on the market. Manufacturers must maintain appropriate post-market surveillance, vigilance and regulatory documentation throughout the device lifecycle.
Medical device classification should therefore be viewed as the starting point of the regulatory pathway rather than an isolated exercise. Correct classification helps establish the conformity assessment, evidence and documentation requirements that follow.
Frequently Asked Questions About UK Medical Device Classification
Medical device classification in the UK determines the risk level of a device based on its intended use and interaction with the human body. Under the UK Medical Device Regulations 2002 (UK MDR 2002), classification helps establish the regulatory requirements for certification, such as obtaining a UKCA marking.
Why it matters: Accurate classification ensures compliance with UK regulations, which is essential for legally marketing devices in Great Britain (England, Scotland, and Wales).
The UK follows the same classification system as the EU MDR for risk-based categories:
- Class I: Low-risk devices (e.g., bandages, tongue depressors).
- Class IIa: Medium-risk devices for short-term use (e.g., dental materials, diagnostic ultrasound devices).
- Class IIb: Higher-risk devices with longer-term or systemic effects (e.g., infusion pumps, ventilators).
- Class III: Highest-risk devices (e.g., implantable cardiac devices, prosthetic heart valves).
Key takeaway: The higher the class, the more rigorous the regulatory requirements.
Classification is based on factors outlined in UK MDR 2002, including:
- Duration of Use: Temporary (<60 minutes), short-term (up to 30 days), or long-term (>30 days).
- Invasiveness: Whether the device is invasive, implantable, or non-invasive.
- Function: If the device supports or sustains life or prevents impairment.
- Energy Source: Active (powered) vs. non-active devices.
Pro tip: Devices with multiple uses or complex features may require expert consultation for accurate classification.
Device classification determines the level of scrutiny during the UKCA marking process:
- Class I Devices (non-sterile, non-measuring): Self-certified by the manufacturer.
- Class I Devices (sterile or measuring), IIa, IIb, III: Require assessment by a UK Approved Body.
- Class III Devices: Face the most stringent requirements, including robust clinical evaluations and technical file reviews.
Key insight: Higher classifications require more evidence and third-party oversight.
The classification rules under UK MDR 2002 currently align closely with the EU MDR. However, post-Brexit, the UK has introduced the UKCA marking, which is required for devices marketed in Great Britain. Northern Ireland continues to follow EU rules under the Northern Ireland Protocol.
Key takeaway: While classification rules are similar, regulatory requirements and marking systems differ between the UK and EU.
Yes! Patient Guard offers expert support for:
- Determining the correct classification of your medical device under UK MDR.
- Preparing technical documentation and risk management files.
- Coordinating with UK Approved Bodies for higher-risk device certifications.
- Supporting UKCA marking and post-market compliance activities.
Why choose Patient Guard: With in-depth knowledge of UK medical device regulations, we simplify the classification and registration process, ensuring timely compliance.
References
This guide is based on the following UK legislation and official regulatory guidance relating to medical device classification, UKCA marking, conformity assessment, UK Approved Bodies, MHRA registration and placing medical devices on the Great Britain market.
| Organisation | Reference | Why it's relevant |
|---|---|---|
| UK Government | Medical Devices Regulations 2002 (SI 2002 No. 618) | Provides the principal legislation governing medical devices in Great Britain, including the regulatory framework for classification, conformity assessment, UKCA marking and manufacturer obligations. |
| MHRA / GOV.UK | Medical Devices: How to Comply With the Legal Requirements in Great Britain | Explains the UK medical device classification system, including Class I, IIa, IIb and III devices, and the factors used to determine classification such as intended purpose, duration of use, invasiveness and implantability. |
| MHRA / GOV.UK | Borderline Products: Classifying Medical Devices and Risk | Provides MHRA guidance on determining whether a product is a medical device and explains the risk classification framework under Part II of the UK MDR 2002, including the classification rules referenced in Regulation 7 and Annex IX. |
| MHRA / GOV.UK | Regulating Medical Devices in the UK | Provides the main MHRA overview of the regulatory framework for placing medical devices on the Great Britain market, including UK MDR 2002, UKCA marking, UK Responsible Persons, MHRA registration and conformity assessment. |
| MHRA / GOV.UK | Approved Bodies for Medical Devices | Explains the role of UK Approved Bodies in assessing medical devices against the UK MDR 2002 and issuing the certification required for applicable UKCA conformity assessment routes. |
| MHRA / GOV.UK | List of UK Approved Bodies for Medical Devices | Provides the current list of organisations designated to carry out medical device conformity assessment for UKCA certification in Great Britain. |
| MHRA / GOV.UK | Register Medical Devices to Place on the Market | Sets out the requirements for registering Class I, IIa, IIb and III medical devices with the MHRA before they are placed on the Great Britain market, including requirements for overseas manufacturers and UK Responsible Persons. |
| European Union | Regulation (EU) 2017/745 on Medical Devices (EU MDR) | Provides the current medical device regulatory framework for the European Union. It is relevant to this guide because EU MDR classification rules differ in certain areas from the current UK MDR 2002 classification framework. |
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