Revolutionizing Medical Device Design Through User-Centered Research and Testing

By Charlotte

At CLEIO, years of designing and developing medical devices have taught us one crucial lesson: strong research is the foundation for innovation. While we may become well-versed in medical terminology with each project, our true strength lies in bridging the gap between theoretical knowledge and real-world needs.

Our cross-functional team of User Experience (UX)Human Factors Engineering, and Innovation Strategy specialists is essential in ensuring product viability by aligning their expertise with project risks and market objectives through a research-driven approach.

To grasp this approach, consider the speculum as a prime example: while a longstanding tool, its design often compromises patient comfort and clinician ergonomics. This calls attention to the importance of rigorous research and testing to open the possibility of medical device innovation.

From comprehensive literature reviews and predicate assessments to in-depth Subject Matter Expert (SME) interviews and formative evaluations, let’s explore together how user-centered research prioritizes patient needs and enhances a safe user experience.

Leveraging Prior Knowledge

Every new project that lands on our desks brings a blend of discoveries and technologies. To make sure the final product is safe, efficient, and fits seamlessly into existing workflows, our Human Factors and UX teams become temporary specialists in the specific area involved. Their first step? A deep dive into research conducted by experts in the field.

Navigating Best Practices and Common Pitfalls

By analyzing past successes and failures of similar devices, we avoid reinventing the wheel and leverage valuable insights. This not only prevents us from repeating design mistakes but also saves time and resources.

Research shows that historical medical devices, such as the speculum, focused solely on clinical functionality, which compromised user safety and hindered device adoption. The discomfort associated with speculum use can lead to anxiety and avoidance of important screenings.

Understanding this, our team can explore innovative speculum designs that improve patient comfort without sacrificing functionality for the practitioner. This could involve investigating softer materials, optimizing the shape for better ergonomics, or even incorporating features that reduce anxiety during examinations.

Unveiling Potential Risks

Literature reviews can be key to anticipating potential safety concerns specific to speculum use before they arise during the design process. For instance, reviewing the FDA’s adverse event reporting system (FAERS) might reveal documented cases of tissue pinching or discomfort associated with specific speculum designs.

By incorporating this knowledge early on, our team can explore alternative speculum designs that minimize such risks. This could involve optimizing blade positioning to reduce pressure points or even incorporating visual features to aid in proper placement and reduce the risk of use error during examinations.

Addressing Psychological Factors

Existing research on women’s health devices provides valuable insights into the psychological impact on both healthcare providers and patients. This knowledge allows us to create speculum designs that are user-centered and minimize potential risks during consultations.

For instance, studies have shown that proper visualization can be complex with certain anatomies when speculums are used on their own, leading to clinician frustration and potentially causing patient discomfort. By addressing these challenges, even though the overall risk is low, we can develop innovative designs, such as disposable sheaths or integrated lighting, to enhance visibility and streamline examinations.

This approach alleviates patient anxiety and improves workflow efficiency, potentially increasing device adoption and encouraging regular screenings.

Understanding the Psychological Impact of Medical History

Historical events can profoundly influence user psychology, particularly in the realm of women’s health. The speculum, a seemingly simple medical tool, is deeply intertwined with a complex and often troubling history.
Its creation is inextricably linked to the unethical experiments conducted by James Marion Sims on enslaved Black women in the 19th century. This dark chapter in medical history has had lasting impacts on women’s trust in healthcare providers, especially among women of color. Understanding this historical context is crucial for designing products that foster trust, comfort, and respect.

Additionally, the speculum’s evolution reflects broader societal attitudes toward women’s bodies and reproductive health. This knowledge empowers us to address potential anxieties and misconceptions, fostering a more positive and supportive healthcare experience.

Harnessing the Power of Predicate Assessment

Before embarking on any design journey, we complement our documentary research with a thorough examination of the existing landscape. This includes a meticulous evaluation of equivalent devices, often referred to as predicates.

In the case of a speculum redesign, these predicates would encompass the speculums currently used in clinical settings. By evaluating these, we gain valuable insights into their strengths and weaknesses. For instance, we might analyze aspects like patient comfort, ease of use for healthcare providers, effectiveness in visualization, and potential safety concerns.
This knowledge forms a critical foundation for our design process, allowing us to identify areas for improvement and ensure that our innovations address the limitations present in existing speculums.

Applying Heuristics by Evaluating the Initial Prototype

Once we deeply understand the existing landscape, we shift our focus to the client’s proposed speculum design. Here, heuristic evaluation comes into play.

This method evaluates the design against a set of established usability principles, or heuristics, such as user interface clarity, consistency, error prevention, and user control. Here, our Human Factors specialists act as meticulous inspectors, systematically examining the client’s speculum prototype against these heuristics.

This process helps us identify probable usability issues early in the design phase to prevent costly and time-consuming corrections later. By pinpointing these potential problems, we can work collaboratively with our industrial designers and engineers to refine the design, ensuring it is not only innovative but also risk-mitigated and optimized for both patients and healthcare providers.

Putting Insights to the Test

While literature reviews provide a valuable starting point, truly understanding user needs requires delving deeper. CLEIO’s Human Factors and UX specialists utilize a multidirectional approach to refine potential design through field studies and testing.

Examining the User Ecosystem

Directly observing healthcare professionals in their work environments provides invaluable insights into the practical challenges and opportunities within the clinical setting. By assessing factors such as lighting, noise, temperature, and physical space limitations, we can design products that seamlessly integrate into existing workflows. For instance, shadowing gynecologists might reveal limited storage space, prompting our team to explore collapsible or compact speculum designs. Although minor, this type of adjustment can significantly enhance the user experience without compromising performance.

Field studies further allow us to validate or refine insights gleaned from literature reviews done earlier on in the process. For example, while research highlights a variety of speculum brands and shapes, each offering unique benefits, observations from gynecological examinations reveal a distinct preference for a specific model among intended users. This trend provides crucial insights that can guide ergonomic choices in the design of the new speculum.

By combining these observational methods with theoretical research, we can develop well-rounded and practical design solutions.

Interviewing the Potential End-Users

Engaging with Subject Matter Experts (SMEs) during interviews offers a unique opportunity to delve deeper into the complexities of the clinical environment. By discussing the needs, challenges, and workflow with gynecologists, nurses, and other healthcare professionals, we can uncover nuanced insights specific to their roles.

This firsthand knowledge is invaluable for identifying potential design constraints, understanding the impact of technology on patient care, and ensuring that the final product integrates seamlessly into existing practices. For instance, interviews with obstetric gynecologists might reveal that nurses are not always in charge of inserting the speculum in their workplace, highlighting the importance of considering multiple user perspectives in product design.

Verifying and Refining Our Work

After gathering sufficient data through research methods like user interviews, surveys, and usability testing, our UX and Human Factors specialists synthesize this information into a series of deliverables. These might include personas, user journey maps, and User Needs documents, which are presented to both the development team and the client, serving as the foundation for design decisions.

Equipped with this user-centered understanding, our industrial designers can then begin sketching and iteratively refining potential speculum designs. As the first iterative design is underway, the Human Factors and UX experts take the lead to ensure the design aligns with user requirements and to identify usability issues early on.

With the latest prototype, they conduct formative evaluations with potential end-users. The feedback from these test sessions allows the team to identify and mitigate possible risks associated with the design before significant development resources are invested.

“By combining these techniques—including interviews, in-depth observations, and prototype testing—CLEIO gains a comprehensive understanding of the practical realities beyond theory. This user-centered approach informs the medical device design process, ensuring it addresses patient comfort and safety while seamlessly integrating into clinical workflows and addressing the practical concerns of healthcare providers.”

Charlotte Lachance
UX-UI Designer at CLEIO

Research is The Cornerstone of Successful Medical Device Innovation

A comprehensive and well-executed design process for medical devices hinges on a strong foundation built upon research. Literature reviews equip medical device designers and engineers with invaluable knowledge about existing technologies, potential user psychology, historical precedents, and, most importantly, unmet needs.

By combining research with user-centered design methodologies, medical device designs are not only cutting-edge but also user-friendly, safe, and effective.
This commitment allows CLEIO to bring groundbreaking medical devices to life that significantly improve patient care and the overall healthcare industry.

Resources

Carugno, J., Timmons, D., Lederer, M., & Grady, M. M. (2020). Impact of using words with unpleasant emotional connotations on perceived patient discomfort during vaginal speculum examinations: A randomized controlled trial. European Journal of Obstetrics & Gynecology and Reproductive Biology, 247, 203–206. https://pubmed.ncbi.nlm.nih.gov/32146225/
Frye, C., & Weisberg, R. (n.d.). Increasing the incidence of routine pelvic examinations: Behavioral Medicine’s contribution. PubMed. https://pubmed.ncbi.nlm.nih.gov/8030359/
Milne, J. S. (2012, August 6). Surgical Instruments in Greek and Roman Times, by John Stewart Milne-A Project Gutenberg eBook. https://www.gutenberg.org/files/40424/40424-h/40424-h.htm#CHAPTER_IX
M, T. (n.d.). [vaginal speculum: The developmental history of a gynecologic instrument]. PubMed. https://pubmed.ncbi.nlm.nih.gov/9221618/
Seehusen, D. A., Johnson, D. R., Earwood, J. S., Sethuraman, S. N., Cornali, J., Gillespie, K., Doria, M., Farnell, E., & Lanham, J. (2006). Improving women’s experience during speculum examinations at routine gynaecological visits: Randomised clinical trial. BMJ, 333(7560), 171. https://doi.org/10.1136/bmj.38888.588519.55
Yerrabelli, R. S., Palsgaard, P. K., Hojati, A., & Johnson, A. J. W. (2023a, September 26). Improving visualization of the cervix during pelvic exams: A simulation using a physical model of the Speculum and human vagina as a steppingstone to reducing disparities in gynecological cancers. PloS one. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10522035/

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