Company Filing History:
1 out of 8 
1 out of 3 
1 out of 51 Years Active: 1977-1985
Title: John E Lewin: Innovator in Extracorporeal Circuits
Introduction
John E Lewin is a notable inventor based in Santa Ana, CA (US), recognized for his contributions to the field of medical technology. He holds a total of 4 patents, showcasing his innovative spirit and dedication to improving healthcare solutions.
Latest Patents
Among his latest patents, Lewin has developed a heat exchanger for extracorporeal circuits. This oxygenator heat exchanger utilizes a heat transfer tube with several tube legs arranged in closely spaced, parallel relation. A resilient central core fits within the tube legs, working in conjunction with spiral ribs to create blood flow spiral passages around the exterior of each tube leg. The design enhances efficient heat exchange by positioning the blood inlet strategically. Another significant invention is a method and apparatus for oxygenating and regulating the temperature of blood. This blood oxygenator features a heat exchanger where heat transfer fluid flows through a ribbed tube, positioned within a chamber connected to an extracorporeal blood circuit. The blood flows over the ribbed tube's exterior surface, navigating through continuous, restricted area flow paths that ensure uniform flow impedance. This innovative design allows for effective oxygen absorption and carbon dioxide removal from the blood.
Career Highlights
Throughout his career, John E Lewin has worked with reputable companies such as Shiley Laboratories, Inc. and Shiley Scientific, Inc. His experience in these organizations has contributed significantly to his expertise in medical device innovation.
Collaborations
Lewin has collaborated with notable individuals in the field, including Frank M Servas and Tudor Pavlov. These partnerships have likely fostered a creative environment that has led to groundbreaking advancements in medical technology.
Conclusion
John E Lewin's contributions to the field of medical technology, particularly in the development of extracorporeal circuits, highlight his innovative capabilities and commitment to enhancing healthcare solutions. His patents reflect a deep understanding of the complexities involved in medical devices, making him a significant figure in the industry.