Dr. Conquest's outlines of midwifery : intended as a text-book for students, and a book of reference for junior practitioners.

  • Conquest, Dr.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Dr. Conquest's outlines of midwifery : intended as a text-book for students, and a book of reference for junior practitioners. Source: Wellcome Collection.

    25/370 (page 11)
    The estimates given vary slightly from those in the original text. With respect to the brim, I consider that the transverse, and not the oblique, is the longest diameter; and that, with resard to the cavity, the converse is the case. — J. M. W.] AXIS OF THE DIFFEEENT PAETS OF THE PELVIS. Without a correct knowledge of the axis of the hrim, cavity, and outlet of the pelvis, neither manual nor instrumental assistance can be advantageously afforded. The axis of the vertebral column is per- pendicular to the horizon. The axis of the brim of the pelvis is represented by a straight line drawn from the umbilicus to the apex of the os coccygis; the axis of the cavity, by a female catheter of the usual curvature, having one extremity fixed about the centre of the superior aperture of the pelvis, and the other at the centre of the inferior aperture, in such manner that the convexity of the curve of the instrument shall be backwards; and the axis of the outlet, by an imaginary right line passing through the centre of the orifice of the vagina, and falling upon the centre of the promontory of the sacrum, but varying with the movements of the os coccygis. [A consideration of the directions of the two axes, will indicate the position most favourable for the ex- pulsion of the child. The patient should lie on her side, with the back curved and the thighs flexed. By this means the axes approximate and the labour is facilitated.—J. M. W.]