Man and abnormal man, including a study of children, in connection with bills to establish laboratories under federal and state governments for the study of the criminal, pauper, and defective classes, with bibliographies . -B Fig. 54.—Spliygmograpli. (Von Frey.)THE SPHYGMOMETER. The sphygmometer is employed to measure the amount of pressure necessary toarrest the radial pulse beats. In Verdins instrument (fig. 55) the left thumb, B, of the operator rests upon theradial artery of the right hand of the subject. The instrument is held in the righthand of the operator, who presses it upon his thu
Man and abnormal man, including a study of children, in connection with bills to establish laboratories under federal and state governments for the study of the criminal, pauper, and defective classes, with bibliographies . -B Fig. 54.—Spliygmograpli. (Von Frey.)THE SPHYGMOMETER. The sphygmometer is employed to measure the amount of pressure necessary toarrest the radial pulse beats. In Verdins instrument (fig. 55) the left thumb, B, of the operator rests upon theradial artery of the right hand of the subject. The instrument is held in the righthand of the operator, who presses it upon his thumb nail until no pulse can be the amount of pressure is read from the scale S. The instrument consists of. IiG. 55.—Sphygmometer. (Verdin.) a small cylindiT of brass, C, containing a spring acting in connection with therod D. A brass circular plate three-eighths of an inch in diameter is screwed on tothe end of this rod. The instrument is five and a half inches in length. When the pulse is bounding, or has some intensity, its complete suppression mayappear difficult. There are recurrent beats that can give difficulty, but a littlepractice will overcome these causes of error. Maker and inventor: Verdin, Paris. 196 MAN AND ABNORMAL MAN.
Size: 1926px × 1297px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisherwashingtongovtprin
