. A system of midwifery, including the diseases of pregnancy and the puerperal state. fellow, and the articular surfaces are opposed to each other, andlocking is readily effected. If the articulating surfaces of the lock are not directly opposed toeach other, the handles should be carried well back towards the peri-neum, when the difficulty in locking is often overcome at once. If this does not follow, it may be proper to pass the fingers of onehand into the vagina, and by careful pressure upon one or the othermargin of the blade, as indicated, aided by gentle manipulations of thehandles, to s
. A system of midwifery, including the diseases of pregnancy and the puerperal state. fellow, and the articular surfaces are opposed to each other, andlocking is readily effected. If the articulating surfaces of the lock are not directly opposed toeach other, the handles should be carried well back towards the peri-neum, when the difficulty in locking is often overcome at once. If this does not follow, it may be proper to pass the fingers of onehand into the vagina, and by careful pressure upon one or the othermargin of the blade, as indicated, aided by gentle manipulations of thehandles, to so alter the position of the blades that locking can beeffected. If this is not accomplished without the exertion of muchforce, the instrument should be removed and reapplied. XXIX.] LONG FORCEPS. 495 Many American obstetric authors and teachers who assert that theforceps should always be applied to the sides of the childs head, givespecial rules for the introduction of the instrument in each position ofthe head. As in this work it is recommended that the blades be intro- Instruments introduced and locked in the dorsal position. duced in relation to the sides of the pelvis, the student is referred tothe writings of those who advocate opposite opinions for a descriptionof the various and complex manipulations by which the blades arebrought into relation with the sides of the head.—P.] It is assumed by many writers that the blades, when introduced,correspond to the antero-posterior diameter of the head. It is not so,however. The head, indeed, very generally occupies the transversediameter of the pelvis, but the tendency of the blades is to adapt them-selves to one or other oblique diameter, as has been showm by has been conclusively established by examination of the head,after delivery by this process, when it is found that one blade haspassed behind the ear, and the other has reached over the frontal boneon the opposite side, and has been applied over or
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectobstetrics, bookyear1
