YOUR heart may soon be diagnosed for ailments by telephone. A new five-lb. transistorized unit which transmits heart sounds and electrocardiograph signals via telephone has been developed by the University of Kansas Medical Center. The device is designed to solve many of the problems of phone consultations between heart specialists. The patient, with transmitter attached, sits or reclines next to a phone mouthpiece. At the receiving end, a second unit transmits the signal to another electrocardiograph machine for consultant’s reading.

  1. Hirudinea says: January 9, 20129:54 am

    Wonder how it worked and if they were really used, anybody know?

  2. ajricher says: January 9, 201211:47 am

    They were used and used successfuly. Think of a Modem – all it was really doing was pumping along a clock sync to synchronize to the paper speed and then an analog signal to drive the pen on the chart recorder.

    If you remember the mid-60s television show “Emergency”, the paramedics made use of a similar device which transmitted over analog radio to perform the same function. Thank you, Motorola… 🙂


  3. frayedknot says: April 27, 20125:27 pm

    The TV series, “Emergency!” was an early-to-mid Seventies TV show. Their radiotelemetry units were made by Biocom rather than Motorola (which made its own units later). I did read that the first Holter monitor transmitted to a recorder at a short distance in the late 40s. Not until the mid-Sixties was radio transmission of EKG’s proven. The developer, a ham-radio operator/doctor, was a doctor who collaborated with Eugene Nagel, a Miami cardiologist, to bring the technology and the first paramedics to the patient’s side wherever he/she was stricken. I am still surprised that radiotelemetry in prehospital emergency care wasn’t exploited earlier. Then again doctors weren’t in short supply and didn’t trust laypersons anyway.

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