Topic: Sphygmograph
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What is a sphygmograph?
Invented in the middle 1800s, and continually improved over the next 50 years, the sphygmograph allowed physicians to measure the pulse, and most importantly, to record it. Previously the pulse was measured by placing fingers on the wrist o... Read More »
Source: http://www.nlm.nih.gov/hmd/about/exhibition/sphygmograph.html
How does a sphygmograph work?
The Mahomed sphygmograph in the exhibition improved upon the widely used Marey sphygmograph. The first historical account presented here is a step by step description of how the Marey sphygmograph works. The second historical account deals ... Read More »
Source: http://www.nlm.nih.gov/hmd/about/exhibition/sphygmograph.html
What is sphyg·mo·graph?
(sfĭg'mə-grăf') n. An instrument for graphically recording the form, strength, and variations of the arterial pulse. sphygmographic sphyg'mo·graph'ic adj. sphygmography sphyg·mog'ra·phy ( -mŏg'rə-fē ) n. Read More »
Source: http://www.answers.com/topic/sphygmograph
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The following description and accompanying diagram are taken from the On the Use of the Sphygmograph by Balthazar W. Foster, M.D., F.L.S. This book was published in 1866 by John Churchill & Sons, London, and is located in the History of Med...
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Source: http://www.nlm.nih.gov/hmd/about/exhibition/sphygmograph.html
[sfig′məgraf] an instrument that records the force of the arterial pulse on a tracing, the sphygmogram. sphygmographic, adj.
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Source: http://medical-dictionary.thefreedictionary.com/sphygmography
(Medicine) Med an instrument for making a recording (sphygmogram) of variations in blood pressure and pulse sphygmographic [ˌsfɪgməʊˈgræfɪk] adj sphygmography [sfɪgˈmɒgrəfɪ] n
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Source: http://www.thefreedictionary.com/sphygmographs
