. The clinical study of blood-pressure : a guide to the use of the sphygmomanometer in medical, surgical, and obstetrical practice, with a summary of the experimental and clinical facts relating to the blood-pressure in health and in disease . EIIE Fig. 30.—Diageammatio seotions of STOP-COCK, A3 IN FiG. 29. l^OSITION OUT. (From Dr. Erlangeradrawing.) Fig. 31.—Diagrammatic sections ofstop-cock, a3 in fig. 29. posi-TION 1. (From Dr. Erlangers draw-ing.) raised and the bulb (B) expands, air is displaced out of T S,and the lever of the tambour does not change its position,except for a moment. By a
. The clinical study of blood-pressure : a guide to the use of the sphygmomanometer in medical, surgical, and obstetrical practice, with a summary of the experimental and clinical facts relating to the blood-pressure in health and in disease . EIIE Fig. 30.—Diageammatio seotions of STOP-COCK, A3 IN FiG. 29. l^OSITION OUT. (From Dr. Erlangeradrawing.) Fig. 31.—Diagrammatic sections ofstop-cock, a3 in fig. 29. posi-TION 1. (From Dr. Erlangers draw-ing.) raised and the bulb (B) expands, air is displaced out of T S,and the lever of the tambour does not change its position,except for a moment. By a slight turn of the stop-cock allthese connections are broken, and the lever (L) begins towrite, for the pulsations of the arm are reproduced by the?bulb (B), and the air forced in and out of T S can only go tothe tambour. Fig. 30 shows the position Out. Here the inflator is cutoff, the tube (F), which leads to the whole manometer system. 98 THE MODERN SPHYGMOMANOMETERS opens to the air through a bore in the bottom of the stop-cock,and T S again communicates with the exterior through E. Inthis position the pressure on the arm is immediately removed,but the tambour is protected from the violent change. Fig. 31 shows position 1, wh
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbloodpr, bookyear1904
