On axis-traction forceps / by Alexander Russell Simpson.

Date:
1880
Catalogue details

Licence: Public Domain Mark

Credit: On axis-traction forceps / by Alexander Russell Simpson. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    tion have been copied in others of more recent date. Whilst, like some other British forceps previously in use, they are long enough to allow of application to the head above the pelvic brim, they present the advantages, first, of having the shanks thrown widely enough apart to allow of the introduction of a finger between them close to the lock during traction; second, of having knees or projections above the Smellie lock, of such size as to prevent the blades readily unlocking in the intervals between the pains, thus giving it the fixed character of the locks of Levret and Brun- uinghausen without their complexity. At the same time, thirdly, the joints are made so loose as to allow of their lateral motion and overlapping to a very considerable degree, thus facilitating their introduction and application. Lastly^ the handles, which are grooved and marked on the anterior sides, are provided with transverse rests or hooks borrowed from the handles of the German forceps (Fig. 1.) Eor it may be interesting here to note that the Fig. 1.—Sir J. Y. Simpaon's forceps sliovro locked, and left blade shown singlv from outside of blade. traction power used to be attained in French. German, and British instruments at different parts of the handles. The handles of typical J^rench forceps end in hooks curving outwards (as in Ficr 2) and through these proximal hooks traction is effected. German obstet- adyances in obstetrics. Palfyn's Ghent, Naegele's Heidelberg, Eigby's Norwicli
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