. Minor and operative surgery, including bandaging . n thesurfaces of the wounds are covered by granulations, whenthe primary sutures have failed to secure apposition of theedges of the wound, in cases of secondary hemorrhagewhere the opening of the wound has been necessitated toturn out the blood-clot and secure the bleeding vessel, andin plastic operations where the primary sutures have failedto secure adhesions of the edges of the flaps. They are SUTURES. 221 also employed with advantage in closing wounds in easesin which it was necessary to pack the wound with anti-septic gauze, or to allo
. Minor and operative surgery, including bandaging . n thesurfaces of the wounds are covered by granulations, whenthe primary sutures have failed to secure apposition of theedges of the wound, in cases of secondary hemorrhagewhere the opening of the wound has been necessitated toturn out the blood-clot and secure the bleeding vessel, andin plastic operations where the primary sutures have failedto secure adhesions of the edges of the flaps. They are SUTURES. 221 also employed with advantage in closing wounds in easesin which it was necessary to pack the wound with anti-septic gauze, or to allow haemostatic forceps to remainclamped upon bleeding tissues in the wound at the time ofoperation. The sutures should in such a case be intro-duced and loosely tied at this time, and when the packingor forceps is removed at the end of two or three days thesutures are tightened so as to secure apposition of theedges of the wound. Surgical Needles.—Xeedles for surgical use are ofdifferent sizes and shapes i Fig. 179); straight needles are Fig. Surgical needles. the ones commonly employed, but curved needles will befound most convenient for the introduction of suturesin wounds in certain locations. Hasredorn needles, whichare flat and have sharp-cutting edges, make a narrowlinear wound in the tissues, and are useful in somecases. For the introduction of sutures in the intestinesor hollow viscera, the ordinary sewing-needle is generallyemployed, as it does not cut the ti—ties, but merely sepa-rates them, and its puncture is not likely to bleed. Tubu-lar needles are often employed in introducing sutures inwounds in which the use ol an ordinary needle is diffi-cult : for instance, in the operation for cleft palate, and forthe introduction of sutures in deep wounds, a mountedneedle will often be found very useful (Fig. 180). Eev-erdins needle, which consists of a handled needle with an 222 MINOR SURGERY. eye which is closed with a slide, is useful in passing deepsutures. The
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