Aseptic surgical technique, with especial reference to gynæcological operations . e powder well over the field of opera-tion, and also use a small quantity of it each time aftercatheterizing the patient, the powder being dustedover the field of operation and the external geni-talia. Some patients are extremely susceptible to the toxiceffects of iodoform, even when very small quantitiesare employed. Under these circumstances we canuse either the boric powder alone or a powder com-posed of one part of subiodide of bismuth to sevenparts of boric acid. The powders should be kept insterilized glass
Aseptic surgical technique, with especial reference to gynæcological operations . e powder well over the field of opera-tion, and also use a small quantity of it each time aftercatheterizing the patient, the powder being dustedover the field of operation and the external geni-talia. Some patients are extremely susceptible to the toxiceffects of iodoform, even when very small quantitiesare employed. Under these circumstances we canuse either the boric powder alone or a powder com-posed of one part of subiodide of bismuth to sevenparts of boric acid. The powders should be kept insterilized glass vessels, and when they are to be ap-plied to a wound should be shaken from a special flaskthat has first been sterilized. Such a powder-box canbe cheaply and easily made by covering the mouth ofa bottle made of glass or metal with a piece of wirescreen. The meshes should not be too coarse, or thepowder will escape too freely. (Fig. 23.) 136 ASEPTIC SURGICAL TECHNIQUE. On account of the danger of poisoning by iodoform,salol has been recommended as a substitute for it. Pig. Aseptic powder-flask. (Robb.) Iodoformized oil, which is a combination of oil andiodoform powder, often employed locally, can be mixedaccording to the following recipe. The oil (olive oilor oil of sweet almonds) is sterilized in a flask, pluggedwith cotton, for an hour on three successive days, andiodoform powder in the proportion of one part to fourparts of oil is added just before the preparation is to be IODOFORMIZED OIL. 137 used. In making this combination it will be necessaryto use a sterilized glass rod and dish, and in order toinsure asepsis, Bohm has suggested that the iodoformpowder should be first carefully washed in an aqueoussolution of sublimate and afterwards dried. Occlusive dressings are frequently used to protectwounds. The solution which is perhaps most oftenused for this purpose in abdominal cases is that knownas bichloride celloidin. The advantages of such a dress-ing, as has alread
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