Top Posts Tagged with #rmst

Diaphragm meter and exerciser (via google patents)

Who knew Respiratory Muscle Strength Devices had such a long history? This patent was filed in 1900 by John E Ruebsam, who had this to say:

It is the object of my invention to provide a simple but efficient apparatus for testing the strength of the diaphragm and also for use therapeutically in exercising it, to the end `the movements of the carriage to and fro.

#rmst #speech language pathology #vintage medical #respiration #patent #slp

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