Obstetrics : the science and the art . , which in the figure is seen passing through thelock. The right hand branch was forged out of one piece of iron,like the vectis at Fig. 118; but the left hand branch was a piece ofthick iron wire carried out to the extremity of the clamp, and thenreturned towards the lock, where its end, being flattened, forms asquare head for the reception of the screw-pivot. If this instrument, as I suppose, does really represent Chamberlenssecond attempt at invention, it must be regarded as a remarkablysuccessful effort; for, setting aside some imperfection in the amo
Obstetrics : the science and the art . , which in the figure is seen passing through thelock. The right hand branch was forged out of one piece of iron,like the vectis at Fig. 118; but the left hand branch was a piece ofthick iron wire carried out to the extremity of the clamp, and thenreturned towards the lock, where its end, being flattened, forms asquare head for the reception of the screw-pivot. If this instrument, as I suppose, does really represent Chamberlenssecond attempt at invention, it must be regarded as a remarkablysuccessful effort; for, setting aside some imperfection in the amountof the old-curve or head-curve, it presents us with an apparatus, atrue obstetrical forceps, of which the counterparts, being separatelyintroduced and then locked by screwing on the pivot, might be so per-fectly adjusted on a foetal cranium as to give the operator complete 538 THE FORCEPS, power over it. The fenestra is very good: the curves, however, areextremely faulty. Not so with the forceps, Fig. 120, which is in all Fig. respects an admirable instrument as to the head-curve, as may be seenby inspecting it in the drawing. The iron of which it was forged is,it is true, rather clumsy, rough and heavy, but scarcely more to becondemned, on that account, than the heavy Berlin forceps of Profes-sor Siebold. It had no pivot-joint, but the two compartments werefastened together by a strong flat braid, like that represented in thefigure, which, being passed through holes drilled in the lock of the in-strument and afterwards wrapped round the handles, would serve, afterthe adjustment of the blades on the head, to hold it quite securely andprevent even as much rocking motion as attends the use of the com-mon English joint. Fig. 121 shows the last and most perfect form of the obstetric for- Fig. 121.
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Keywords: ., boo, bookcentury1800, booksubjectmidwifery, booksubjectobstetrics
