UX Firm

Medical Device Usability Testing

Our small, senior-level team comprises the top researchers in our field

Usability Testing of Medical Devices

Medical device human factors validation testing requires strict procedures following the Guidelines issued by FDA and IEC to validate the safe and effective use of medical devices. UX Firm has a proven track record of delivering effective test protocols for FDA review, high quality formative and summative usability evaluations, and highly detailed reports to be used in FDA pre-market submissions for 510(k) and De Novo classifications. We also follow European MDR and MHRA requirements and provide research that supports CE marking.


The big companies charge very big bucks for these services. Because we are a boutique consultancy, we can be highly competitive in pricing and highly effective in working directly with you to produce the research results you require.

For every medical device usability testing project, our expert 2-person team comprises the top UX researchers in our field.  We partner with your team to plan the study, execute the study with your specific user groups, analyze the findings to determine root causes for all critical and non-critical tasks, and document the findings in a report according to FDA guidelines.


As part of our engagement with clients, we can do any or all of the following tasks:

  • Write the test protocol, including the moderator's guide, screener, and logging template
  • Manage participant recruitment with an approved screener
  • Conduct formative and summative human factors testing
  • Write a comprehensive report to include root cause analysis of errors, close calls, and difficulties


Formative Usability Testing

  • Engage with stakeholders to plan the study
  • Determine users, tasks, environments
  • Plan study tasks based on critical risk analysis
  • Conduct testing and analysis
  • Report findings and commend changes


Human Factors Validation Testing

  • Engage with stakeholders to plan study and develop test protocol
  • Use uFMEA/URRA to identify critical risk factors for procedural and knowledge tasks
  • Conduct testing to determine root causes of errors, close calls, difficulties
  • Prepare formal report of findings, following Table A-1, Section 8, of FDA Guideline
  • Conduct stakeholders findings meeting

UX Firm ensures compliance in Medical Device Human Factors Validation Testing

UX Firm provides our team of highly qualified, experienced researchers to conduct formative and summative usability testing of medical devices. Our processes ensure compliance with all regulations and guidelines in support of successful FDA 510(k) and De Novo submissions.

IEC 62366, ISO 14971, & ANSI/AAMI HE75 Require Human Factors Usability Testing

IEC 62366  Part 1: Application of Usability Engineering to Medical Devices

“IEC 62366 specifies a process for a manufacturer to analyze, specify, develop, and validate the usability of a medical device as it relates to safety. . . . Part 1 has been updated to include contemporary concepts of usability engineering, while also streamlining the process.
It strengthens links to ISO 14971. . . . Part 2 [offers] more detailed descriptions of usability engineering methods that can be applied generally to medical devices.”

ANSI/AAMI HE75:2009/(R)2018 Human Factors Engineering—Design of Medical Devices

provides comprehensive guidance on designing to accommodate user characteristics, managing the risk of use error, and undergoing usability testing to confirm the safety and effectiveness of the design. This document complements ANSI/AAMI/IEC 62366.

FDA Issues Guidance for Applying Human Factors and Usability Engineering to Medical Devices

The primary guidance was issued on February 3, 2016. 

“FDA has developed this guidance document to assist industry in following appropriate human factors and usability engineering processes to maximize the likelihood that new medical devices will be safe and effective for the intended users, uses and use environments.”

The latest draft guidance was issued on December 9, 2022.  It contains important information about the URRA (Use-Related Risk Analysis) table they recommend for 510(k) submissions. 

"The main factors to consider in a risk-based approach to human factors assessment, as described in this draft guidance, include the identification of (i.e., presence of or modification to) critical tasks and the elimination or reduction in use-related hazards."
MedTech Top 10 medical device testing

Read our viewpoint article on The Importance of Human Factors Validation Testing for New Medical Devices to learn the points you should consider when selecting a vendor.

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“UX Firm has been a great partner to help us prepare the Usability study for our FDA submission. They have helped us in all the steps of the process, always open for discussion and giving great feedback on our product and its testing. I’m very happy that we trusted in UX Firm and I’m sure we will continue to do so in our future developments.”

Borja Gonzalvez, Product Manager NUUBO

Borja Gonzalvez

Product Manager, Nuubo

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Requirements Gathering

  • Engage with stakeholders
  • Determine goals for product
  • Gather requirements from known sources

Preliminary Analysis

  • Conduct heuristic evaluation/expert review
  • Review critical risk factors
  • Determine target user groups
  • Identify tasks for testing

Formative Usability Testing

  • Engage with stakeholders to plan the study
  • Determine users, tasks, environments
  • Establish critical risk factors
  • Conduct testing and analysis
  • Recommend changes

Human Factors Validation Testing

  • Plan study/develop test protocol
  • Use uFMEA to identify critical risk factors
  • Conduct testing to determine root causes of errors
  • Prepare formal report of findings
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"I had the pleasure of working side-by-side with Carol during a somewhat long-phased summative testing project for a medical device coming to market. Not only did UX Firm deliver, they were also flexible, knowledgeable, and a phenomenal catalyst for the project’s success. Without Carol’s expertise and guidance, we would not have been able to pass validation. UX Firm is a top-notch research firm and comes highly recommended."

Deb Penny, Sr. Lead, ADI

Deb Penny, Sr. Lead

 HF/UX Engineer, ADI

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Medical Device Human Factors Case Study Example

Study Goals

Gain insights into user experience of multiple product design prototypes to determine preferences, success/failure rates, and safety of use by caregiver, clinician, and patient populations.


Methodology

Structure a comparative usability evaluation of five prototypes with representative users from three population groups, using all versions of the prototype (in varied order) to determine human factors issues, including safety and reliability, as measured against a specific set of criteria.


Outcome

A sample page from the report shows the results of one aspect of this testing. Two prototypes were determined to be the most successful and acceptable to the three user groups, with features from a third prototype reflecting some interest and acceptance from study participants.


Our recommendation was accepted to continue design and development of two prototypes to include the best features identified from this evaluation.


Retest took place in an iterative design process to determine improvements in success/acceptance in usability testing of more advanced models.

medical device testing data

Related Medical Device Usability Testing Resources

medical device usability testing
By Carol Barnum 09 Feb, 2024
A getting started guide to medical device usability testing for FDA submission. Contact us to learn more about our human factors validation testing services.
FDA clearance for syringes
By Carol Barnum 16 Jul, 2019
UX Firm coordinated and conducted human factors formative and summative evaluations for successful FDA 510(k) submission. Contact us to learn more!
usability testing participants
By Carol Barnum 03 Oct, 2017
All participants in usability testing need special handling, but participants in medical device usability testing may need extra consideration.
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