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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43, struck by the risk of damage resulting from the projection ofspiculse of bone after perforation and cephalotripsy. Van Huevel deviseda saw-forceps which permits of sawing into the head without splinteringit. His instrument (Fig. 161) has been repeatedly used by himself, andHyernaux, who advocates the instrument strongly, says: It is nowtwenty-four years since Van Huevel devised his instrument, and we canvouch for its frequent success in cases where there was contraction evendown to 1.5 inches, its limit of application. Didot (Liege) has modified Van HueveFs saw-forceps, and has devisedwhat he calls a diatrypteur, an instrument resembling a glove stretcher.It has never been used on the living. Tarnier has caused the construction of two models of a saw-forceps. EMBRYOTOMY. 267 with parallel blades. The one (Fig. 163) has a single chain saw and issimilar to Van Huevels instruments; the other (Fig. 163) has two chainswhich move at the same time and cross one another, so that after the
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Fig. 161. Fig. 162. Fig. 161.—Van Huevels Saw-Forceps. Fig. 162.—Saw-Forceps with single chain OF Tarnieb. 1, A, Holes through which the chain passes. B, Key. C, Opening for passage ofconductor. D, Lock. E, Chain saw. FF, Handle of saw. IK, Flexible conductor. 2, Insertion ofchain saw through openings. sawing the section of bone is loose and may be at once extracted. Theremoved portion has the shape of a cone, with a base a trifle over ^ inchin thickness. In his experiments, Tarnier was able to extract, from a 268 A TKEATISE ON OBSTETRICS. wooden box through an opening 2^ inches long by -J inch broad, thecadaver of a foetus after three successive applications of his saw-foroeps,a result not practicable with any other instrument. The saw-forceps is open to a number of objections: it is difficult to

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