Importance

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Abstract

An interrogator for remotely interrogating an internal counter of a scoliosis treatment device. An internal counter of the treatment device is incremented for those periods of time in which the treatment level of the device is in excess of a compliance level. The interrogator communicates with the internal counter by means of two serial data lines. On one data line the interrogator generates a clock signal to the internal counter for incrementing the device and on the other data line the interrogator receives a pulse indicating the internal counter has overflowed. By incrementing the internal counter through a full cycle of its maximum count the counter will retain the count present when it is interrogated. Additionally, by counting the number of, clock counts comprising the period from the overflow signal to the end of a full cycle a duplication of the count in the remote internal counter can be stored in the interrogator and subsequently displayed.

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First Claim