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The Tech Talks Daily Podcast

2001 EpisodesProduced by Neil C. HughesWebsite

The speed of technological change continues to race ahead at breakneck speed, but it will never move this slowly again.In 2024, businesses and their employees will be expected to get to grips with AI, Machine Learning, Quantum Computing, Extended Reality, Cloud Computing, Edge Computing, Sustainable… read more

32:42

1270: The Story Behind The First Digital Stethoscope

Thinklabs was founded in 1991 by Clive Smith, an Electrical Engineering graduate of Caltech. The name implies the company's goal - think deeply about problems that matter and develop imaginative solutions. Smith has always had a passion for medical electronics, sound, music, and signal processing.

In the mid-'90s, Smith read a Circulation paper, indicating that stethoscope acoustics had not improved since Laennec built the first stethoscope in 1816. Physicians confirmed that even top-of-the-line conventional stethoscopes did a poor job of amplifying heart and lung sounds. Thus began Smith's obsession to re-invent the stethoscope.

The concept of an electronic stethoscope was not new. For a century, the road to perfect auscultation was littered with the carcasses of failed efforts. Smith started experimenting. Technologies were tested, rejected, modified and retested. The key breakthrough came with a question: How can one create an electrical analog to the acoustic pressure changes in a conventional stethoscope?

All the benefits of advanced electronic technology would then accrue and the authentic sound of the stethoscope would be preserved. Physicians would not require any ear retraining. A completely new transducer was needed.

Clive Smith went on to design the One Digital Stethoscope. But I want to find out more about that journey and the Thinklabs One motto of never stop inventing. We discuss how doctors and patients are leveraging new technology for remote medicine.

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