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An Industry Mainstay(cont'd)
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People
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An Industry Mainstay

When John Cadwell was in his residency at the University of Washington, he became frustrated with the electromyography instruments that were available at the time. They were slow, difficult to use, extremely expensive and used old analog technology. They consisted of a sea of knobs and buttons that looked more like an airplane cockpit than a medical instrument. The doctor spent more time operating the machine than diagnosing the patient.

Using his passion for electronics and his understanding of the physician's needs, he came up with an idea to use microprocessor-based technology to take advantage of the speed, accuracy and lower costs that computer chips provided. Another goal was to make the machine easier to use so the doctor could spend more time seeing patients and less time running the test. He approached his brother Carl, who was practicing dentistry at the time; with his idea the two of them started Cadwell Laboratories in John's basement in Seattle. The world's first microprocessor based instrument, the Cadwell Model 7000, debuted in 1979 and created an amazing buzz among the medical community at meetings and presentations. The end result was the first microprocessor-controlled electromyography instrument. This creation combined EP, EMG and NCV capability into one unit
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