Patricia Davis-Lemessy, Ph.D.

Engineering Fellow
Cordis Corporation

4 U.S. Patents

Patricia Davis-Lemessy, Ph.D. is an Engineering Fellow at Cordis Corporation, a leading global entity in cardiovascular devices, where she developed novel polymers that address the characteristics required to conduct coronary angioplasty on blocked coronary arteries.

A global expert in polymer science, Dr. Davis-Lemessy has over 34 years of experience in biomedical engineering. Her pioneering research and technical leadership have significantly advanced medical implant disciplines, including angioplasty catheters, ocular implants, tendon implants, hip prostheses, and controlled drug delivery. Dr. Davis-Lemessy’s contributions have substantially shaped the medical device design and manufacturing industry and continue to drive advancements in device development to better serve patients worldwide. Moreover, her patents have been leveraged by international companies (including ACS, Cordis Corp., and Cardinal Health) with global distribution networks.

Prior to her tenure at Cordis, Dr. Davis-Lemessy made groundbreaking contributions to the medical device design and manufacturing industry at W.L. Gore & Associates, Boston Scientific Corporation, Guidant Corporation, ACS, Merit Medical Systems, and Bascom Palmer Eye Institute.

Additionally, Dr. Davis-Lemessy has published over 100 journal articles and is the author of several children’s books, including “Positive Affirmations for the Black Child” under the pen name of Patsy Clarke. Throughout her career, Dr. Davis-Lemessy has mentored aspiring engineers and served underrepresented populations in STEM. Her commitment to service and mentorship earned her the E. Stuart Eichert, Jr. Student Award for Selfless Service to the University and Community.

Dr. Davis-Lemessy completed her Ph.D. in Polymer Science and Engineering at the University of Connecticut and her B.S. in Biomedical Engineering from the University of Pennsylvania, where she was recognized with the “Ivy League Champion in Track and Field” award.

A MENTION ABOUT INVENTION – 3 Questions for the Inventor

Q1. Of your patents/inventions, which one is your favorite and why?

Of all the patents and inventions I’ve been fortunate to contribute to, the Cordis Rain Sheath Kink Resistance Technology (KRT) stands out as my favorite. First, the reach of this innovation extends to millions of people worldwide. Second, this innovation, designed for radial access angioplasty, represents a significant leap forward in the field of interventional cardiology. What makes the Rain Sheath KRT particularly special to me is its ability to improve patient outcomes while simplifying this critical procedure for healthcare providers.

Radial access has become the preferred method for many cardiologists due to its reduced complication rates and quicker patient recovery times compared to femoral access. However, challenges such as vascular spasm and patient discomfort have persisted. The Rain Sheath KRT addresses these issues by offering a more flexible, hydrophilic-coated sheath that minimizes trauma to the artery, thereby reducing the incidence of spasms. Additionally, its innovative design allows for smoother catheter insertion and navigation, making the procedure more efficient and less stressful for both patients and operators.

Most importantly, the KRT sheath rebounds. A kinked sheath often requires removal and replacement, which lengthens procedure times. As the procedure time increases, so does the potential for patient vessel spasms, which are painful since the patient remains alert during the entire procedure. Furthermore, spasms can prolong the procedure even more. This novel KRT technology improves the patient experience and reduces procedure times.

This invention stands out because it directly enhances the patient experience while also empowering clinicians with a tool that improves procedural success rates. The potential to positively impact lives on such a large scale is why the Cordis Rain Sheath KRT remains my favorite innovation.

Q2. What inspired you to become an inventor/innovator?

The yearning to ease the suffering of my fellow human beings has always been the guiding force in my journey as an inventor. From my earliest memories, I’ve been deeply moved by the struggles and pains I witnessed—whether it was the illness that weighed heavily on a loved one or the silent battles fought in communities that were overlooked and underserved. These experiences planted in me a seed, a deep-rooted desire to bring light to dark places, to mend what is broken, and to provide comfort where it is most needed.

As I ventured into the field of bioengineering, I saw the power of innovation to heal and transform. But I also saw the gaps—those spaces where suffering continued. It was in these spaces that I knew my work could make the greatest impact. Every invention, every idea born from my efforts, is an offering—a small balm to the world’s wounds, a bridge to a better future.

What drives me, what keeps me devoted to this sacred pursuit, is the belief that my work can help ease burdens and lift sorrows, even if just a little. I hope this purpose will inspire others to use their gifts to build a world where suffering is diminished, and healing flows like a river, reaching all who long for it.

Q3. What is your process when developing new inventions/innovations?

My process of inventing and innovating is deeply intertwined with a practice of meditation and a connection to the unconscious mind. When I embark on the journey of creation, I begin by quieting the noise of the outside world and turning inward. Through meditation, I create a space where my mind can connect with the greater, higher power that guides and inspires me. This practice allows me to tap into the depths of my unconscious mind, where ideas and solutions often reside, waiting to be discovered.

In these moments of stillness, I become a vessel, open to receiving the wisdom and insights that come from beyond the surface of everyday thought. It is as if I am aligning myself with a universal flow of creativity and intelligence, one that transcends the limitations of the conscious mind. This connection enables me to see possibilities that are not immediately obvious, to approach problems with a fresh perspective, and to innovate in ways that feel both inspired and intuitive.

My inventions are not just products of logic and reason; they are the manifestations of a deeper dialogue between my inner self and the higher power that guides my work. This process of creation feels sacred—a dance between the conscious and unconscious, between the seen and unseen, leading to innovations that are both meaningful and profound.