June Thinker: Jorge Reynolds Pombo

For our June Thinker, we spotlight Jorge Reynolds Pombo, a Colombian electrical engineer whose groundbreaking work in biomedical engineering has had a lasting impact on modern medicine. His contribution to the invention of the pacemaker technology continues to save countless lives worldwide.  

Early Life: 

Jorge Reynolds Pombo was born on June 22, 1936, in Bogotá, Colombia. He exhibited a keen interest in science and technology from a young age. After completing his schooling in Bogotá, Reynolds pursued higher education at Trinity College, Cambridge, where he was part of the first graduating class of electrical engineers in Europe in 1953. Returning to Colombia, Reynolds faced a society unfamiliar with his qualifications, often misunderstood as someone who worked with atomic bombs or steam irons. Nevertheless, his expertise soon found its purpose at the Universidad Nacional’s cardiology unit, where he was invited to participate in heart research. This early work confirmed that the heart’s function is electrically driven, setting the stage for his future contributions to cardiac health.

Work and Contribution:

Jorge Reynolds Pombo is most renowned for his significant advancements in pacemaker technology. In 1958, he developed an external pacemaker with internal electrodes, a pioneering step in treating heart rhythm disorders. Although not the first pacemaker inventor, his work was crucial in the early development and practical implementation of pacemakers, particularly in Colombia. His designs were among the first to be used clinically, and he played a key role in advancing the technology at the Shaio Clinic in Bogotá​.

Photo Source: Jan-Otto

Reynolds' contributions extend beyond pacemakers. His innovative work includes extensive research on marine mammal hearts, particularly those of humpback whales. By studying the hearts of these massive creatures, Reynolds sought to understand cardiac function on a grand scale, drawing parallels to human heart physiology. This research involved numerous expeditions along the Pacific coast and collaboration with the Colombian Navy, which even provided a submarine for his studies​.

Reynolds has been honored with multiple awards and honorary doctorates for his contributions to cardiology and biomedical engineering. Despite limited support for scientific research in Colombia, his work continues to be recognized globally, underscoring his role as a pioneer in medical technology. 

Jorge Reynolds Pombo's career exemplifies the profound impact of interdisciplinary research and innovation in STEM. His pioneering work in pacemaker technology and biomedical engineering continues to benefit patients worldwide, highlighting the enduring legacy of his contributions to science and medicine. As we honor him as our June Thinker, we celebrate his commitment to improving human health through technological advancements.


Did you miss our May Monthly Thinker? Learn more about Christine Ay Tjoe, contemporary artist known for her abstract and expressive works.

To learn more about STEAM Ahead, visit us at www.westeamahead.org

Vien Villamiel