A nurse's handbook of obstetrics . Fig. 5.—Harriss pelvimeter. The external pelvic measurements are taken with an instru-ment called a pelvimeter (Fig. 5), which acts on the principle. Fig. 6.—Measuring the distance, iliac crests. ANATOMY. 33 of a carpenters or plumbers calipers. The patient lies on herside or back, according to the diameters to be measured, withthe abdomen exposed, as shown in Fig. 6. The internal pelvicmeasurements, for determining the actual diameters of the brim,are usually made by inserting two fingers into the vagina andup to the promontory of the sacrum and estimating t
A nurse's handbook of obstetrics . Fig. 5.—Harriss pelvimeter. The external pelvic measurements are taken with an instru-ment called a pelvimeter (Fig. 5), which acts on the principle. Fig. 6.—Measuring the distance, iliac crests. ANATOMY. 33 of a carpenters or plumbers calipers. The patient lies on herside or back, according to the diameters to be measured, withthe abdomen exposed, as shown in Fig. 6. The internal pelvicmeasurements, for determining the actual diameters of the brim,are usually made by inserting two fingers into the vagina andup to the promontory of the sacrum and estimating the variousdimensions in this manner (Fig. 7).
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