Harnessing Human Factors to Create Better Medical Devices

Good design is not just about aesthetics or technology, it must include understanding the people who will be using the product. Our goal is to create devices that not only fit seamlessly into a user’s routine but also accommodates the broadest possible range of individuals. This focus on human factors is central to how we approach development, to try and ensure products are safe, accessible, efficient, effective and fully address the needs of the users.

The Challenge

One of the primary challenges in designing any product for successful and enjoyable human interaction is the immense variation in people’s anatomy, behaviour, personal experience, perception and skill level. With the push to develop medical devices that can be used by lower trained operators or potentially even by the patients themselves. It is crucial that designs pay attention to the wide range of human variables and their interdependencies. It’s not purely shape, size and physical ability of people that are design requirements. Users must be considered holistically including psychology, cognition and anxiety levels. This means not just developing with small test groups but considering the full range of anthropometric and biomechanical possibilities. In a recent development project we had the challenge to create a patient interface that could comfortably accommodate a wide range of users but also guide them intuitively and quickly.

Our Approach

At the forefront of our approach was a rigorous human factors design process rather than leaving usability considerations until after the engineering phase. Three distinct threads of human centred designs were important to create our solution:

1. Anthropometric Data Modelling:

   Successful design cannot rely on basic data, we sourced, analysed, and built upon extensive anthropometric data sets, creating digital models that allowed us to simulate worst-case scenarios. This process included generating virtual users with multiple configurations of anthropometric variables to test how our design would perform. By creating digital representations and running simulations, we were able to test multiple options and refine our designs swiftly and efficiently, adapting to potential challenges before they emerged in physical testing.

   
   

2. Iterative Usability Testing:

   A key part of our design process is the continuous cycle of user testing. From early concept testing to more advanced stages, we engaged with diverse user groups, focusing on how they interacted with our prototypes. This hands-on approach allowed us to identify critical issues early, understand the nuances of user behaviour, to help develop intuitive and effective designs. By testing in real-world scenarios and adapting our designs accordingly, we were able to develop a product that feels natural and easy to use.

   
   

3. Human Factors Integration in Design and Development:

   Human factors shouldn’t be an afterthought—they’re embedded throughout the design process. From defining requirements and identifying risks to developing and refining the product, human factors considerations shape every decision. This means thinking ahead about how users will engage with the product, ensuring that it meets both functional and commercial needs. We ensure that the product not only functions well but also aligns with user expectations, reducing the need for extensive training or adjustment.

   
   
   
   

Overcoming Challenges

The lack of existing data meant that we had to create our own database that has since become a valuable resource for future projects. By balancing commercial demands with the need for human-centred design, we were able to create a product that is both market-ready and user-friendly.

Through this process, we have developed an approach that is adaptable, data-driven, and attuned to human needs. By employing digital experimentation, rigorous testing, and comprehensive data analysis, we can create designs that meet the requirements of the users and the market.

Outcome

The result is a product design process that strikes the balance between commercial objectives and user requirements. By leveraging human factors design, we ensure that our solutions are not only technically sound but also easy to use, intuitive, and adaptable to a wide range of environments and users. 

Conclusion

By focusing on the user from the outset, we ensure that our products not only meet usability engineering standards but  fulfil the needs of the market. This approach can deliver solutions that are effective, reliable, and above all, designed with people in mind.

Want to learn how our human factors approach could enhance your next medical device? Get in touch to discuss your project.