David Nelson Wells

Title: **David Nelson Wells: Innovator in Particle Characterization and Medical Devices**

Introduction

David Nelson Wells, an inventive force located in Silver Spring, MD, holds an impressive portfolio with six patents to his name. His innovations primarily focus on advancements in particle characterization and medical technology, contributing significantly to both scientific and healthcare fields.

Latest Patents

Among his latest inventions, Wells introduced an apparatus and method for the characterization of particles. This invention relates to devices designed for counting and sizing particles suspended in a fluid stream. The system consists of a directional element that directs the fluid flow and an advanced laser beam forming optical system. This system incorporates a laser light source with wavelengths ranging from 200 nm to 1000 nm, along with a profiling optical subsystem equipped with collimator and convergent lenses to illuminate a selected scattering volume of the fluid stream. The device also features a wide-angle detecting subsystem and a back-reflecting subsystem to enhance particle measurement accuracy.

Additionally, Wells developed an artificial lung system and its associated methods of use. The oxygen supply unit in this invention includes an oxygen concentrator and a carbon dioxide scrubber. It operates in two modes: an on-line operational mode, predominantly supplying oxygen-rich gas to a blood oxygenator, and an off-line operational mode, which utilizes a battery to power a larger flow of recycled gas through the scrubber. This innovative system is designed to work with blood pumps and oxygenators, providing ambulatory blood oxygenation to patients suffering from compromised lung function.

Career Highlights

David Nelson Wells has made significant contributions during his career, working with prominent organizations, including the University of Maryland, Baltimore. His work has paved the way for improved methodologies and devices that enhance the efficiency and effectiveness of medical treatments and particle analysis.

Collaborations

Throughout his career, Wells has collaborated with notable professionals in his field, including Zhongjun Wu and Bartley Griffith. These partnerships have fostered a collaborative environment, allowing for the exchange of ideas and the advancement of technology in both particle characterization and medical device innovation.

Conclusion

David Nelson Wells remains a pivotal figure in the realm of innovation, with his work exemplifying the intersection of cutting-edge technology and practical applications. His ongoing contributions continue to influence advancements in both particle analysis and medical treatments, establishing him as a key inventor in today’s scientific landscape.