A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . Clinical Polygraph. (Dudgeon-Mackenzie.) These latter movements are taken up by suitablycontrived apparatus, cups, etc., and are transmittedto the tambours attached to the writing levers bj-means of air pressure in rubber tubing. The writingpoints are kept in contact with the smoked paper bythe force of gravity, a considerable aid to the operatorsince it permits him to direct his attention to the otherfeatures of the manipulation. 648 Fig. 1222.—Jacquets Sphygmocar
A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . Clinical Polygraph. (Dudgeon-Mackenzie.) These latter movements are taken up by suitablycontrived apparatus, cups, etc., and are transmittedto the tambours attached to the writing levers bj-means of air pressure in rubber tubing. The writingpoints are kept in contact with the smoked paper bythe force of gravity, a considerable aid to the operatorsince it permits him to direct his attention to the otherfeatures of the manipulation. 648 Fig. 1222.—Jacquets Sphygmocardiograph. (Arthur H. Thomas Company.) This sj-stem is connected by means of a three-waycock with a column of mercurj whose height may berecorded by an ingenious blowing device acting onanother writing lever. A third tambour with itswriting lever may be used to record the movementsof the veins, apex, liver, or respiration, which arereceived by air transmission through rubber tubingfrom a cup or other device applied to one of theseorgans. A fourth writing lever records fifths of asecond. The paper and time marker are moved b
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Keywords: ., bookauthorbuckalbe, bookcentury1900, bookdecade1910, bookyear1913
