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Feeling the need for a simple, compact, accurate, and at the same time reasonably inexpensive, blood-pressure apparatus, I devised the following:
In describing this form of blood-pressure apparatus I do not claim to have evolved any new principles, but wish to state that it is an apparatus embodying features from several forms of sphygmomanometers now in use, with certain other alterations and modifications, making a practical and simple instrument. The reservoir principle is similar to that of the Stanton, while the use of the glass in its manufacture was adapted from Dr. Kercher's instrument. The pneumatic cuff is essentially that of Dr. Janeway. The use of the sliding scale and the box lid to support the instrument were also derived from the same source.
This instrument consists, as can readily be seen from the illustration. of a long glass tube of small bore continuous through a short U-shaped bend, with
NICHOLSON P. A NEW SPHYGMOMANOMETER. JAMA. 1911;LVII(2):114–115. doi:10.1001/jama.1911.04260070118012
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