File:Cyclopædia of obstetrics and gynecology (1887) (14802952733).jpg

Identifier: cyclopdiaofobs04gran (find matches)
Title: Cyclopædia of obstetrics and gynecology
Year: 1887 (1880s)
Authors: Grandin, Egbert H. (Egbert Henry), b. 1855, ed Bandl, Ludwig Billroth, Theodor, 1829-1894 Börner, Ernst, 1843-1914 Breisky, A Charpentier, Arthur Louis Alphonse, 1836-1899 Chrobak, Rudolf Gusserow, A Hegar, A. (Alfred), 1830-1914 Kaltenbach, Rudolph, 1842-1896 Müller, Peter, 1836-1922 Olshausen, Robert Michaelis von, 1836-1915 Winckel, F Zweifel, Paul
Subjects: Obstetrics Women Gynecology Obstetrics
Publisher: New York, W. Wood & Company
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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its action on the head being from in front back-wards. When, says Tarnier, the lever is well applied, the handle israised, and the instrument taking purchase at the symphysis acts like afirst-class lever. The head is lowered by the power at the handle, andcontinuing this motion with a few tractions, the head is delivered. Toavoid contusion of the urethra, the lever should be wrapped with linen,or with rubber, and placed to one side of the median line. It easily slipswhen applied as above, and pressure on the ischio-joubic ramus contusesit; to prevent this, the handle is firmly grasped in the middle by the left IGO A TREATISE ON OBSTETRICS. hand, to prevent slipping, at the same time making pressure backwardsto re-enforce the fulcrum and diminish the pressure on the symphysis. Struck by the facts cited by Bodaert, and by those of Fabri, and of hisown experiments, made with the lever, Tarnier concludes that it cannotbe compared with the forceps as a tractor, since it acts by compressing
Text Appearing After Image:
Fig. 1-24.—Lever of Hubert, the Yocxger. the head from before backwards. But although it cannot take the placeof the forceps, it may, and it should be used in certain cases. He thinksthat the action of the lever should be studied in: 1. Vertex presentations.2. Face presentations. 3. Presentation of the breech, after the body hasbeen delivered, and the head remains. THE LEVEE. 161 Presentation of the Vertex. 1. Head at ilie Inferior Strait,—The forceps is superior to the lever,which piTshes the head towards the coccyx, places it away from thecentre of the vulva, and exposes the perineitni to laceration. Only doesthe lever excel the forceps when the inferior strait is narrowed trans-versely by the contiguity of the ischio-pubic rami, or the ischiatic tuber-osities. Thanks to its little size, it is then easily applied, and can pushthe head backward where there is more room. 2. Head in the Cavity.—The forceps still excels the lever, for with itwe may rotate the head, while in poster

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