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Article
April 2, 1910

A NEW APPARATUS FOR THE ESTIMATION OF BLOOD-PRESSURE

Author Affiliations

PHILADELPHIA

JAMA. 1910;LIV(14):1136. doi:10.1001/jama.1910.92550400001001g

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Abstract

The apparatus for the estimation of blood-pressure which I desire to present has the following features to recommend it:

Extreme simplicity; the avoidance of all ground joints, cocks, valves and complicated mechanisms.

Absence of metal parts to amalgamate the mercury.

Ease of manipulation; only one hand being required to work the apparatus, the other being free to feel the pulse or manipulate the stethoscope in auscultation.

Cheapness; there being no expensive parts or construction, this apparatus can be sold for one-half the price of the cheapest instrument at present on the market.

Portability; it may be taken apart readily, carried in any convenient bag and quickly put together again for use. The entire apparatus weighs fourteen ounces.

This apparatus consists of:

1. Wooden base with supports for small glass mercury cistern and for upright 300 mm. scale graduated in millimeters. Lying in a groove in this

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