Preparatory and after treatment in operative cases . up in boxes containing thirty strings of each of the sizes. Designation. Average Length. Banjo 1 (thinnest) 67^ in. Banjo 2 67-| in. Violin E 671 in. Violin A 444, in. Violin D (heaviest) 44£ in. Average Breaking Point. 5 lbs. 8 lbs. The first three sizes are those mostly used in surgery. Eachstring is coiled or arranged in a manner shown in Fig. 46,and tied with a strand of silk colors the solutionsused. Rouffh catgut is the kind which It clockmakers and jewelers use. comes in strings of five meters inlengt
Preparatory and after treatment in operative cases . up in boxes containing thirty strings of each of the sizes. Designation. Average Length. Banjo 1 (thinnest) 67^ in. Banjo 2 67-| in. Violin E 671 in. Violin A 444, in. Violin D (heaviest) 44£ in. Average Breaking Point. 5 lbs. 8 lbs. The first three sizes are those mostly used in surgery. Eachstring is coiled or arranged in a manner shown in Fig. 46,and tied with a strand of silk colors the solutionsused. Rouffh catgut is the kind which It clockmakers and jewelers use. comes in strings of five meters inlength, of various sizes; 00, 0, 1,2, and 3 are most commonly used.(Bryant.) A large number of methods ofpreparing catgut for ligatures andsutures have been employed. Noneof these are effective unless care-fully employed and accurately exe-cuted. Of all the methods the so-called cumol and dry sterilizationis the most certain, and is univer-sally applicable. Three kinds of prepared catgutwill be described: the plain, thechromicized, and the iodized. The. Fig. 46.—Catgut Looped andReady for Sterilization. 88 SUTURE AND LIGATURE MATERIAL former two necessitate the removal of the fats from the raw ma-terial, the latter does not. Plain catgut is more readily absorbed than the chromic, ismore pliable, and consequently ties a closer knot than chromic,though the latter is strongen, remains in situ longer, and is morereadily handled. The exact place which iodin catgut occupiesis difficult to state. In its preparation it frequently undergoes achange which lessens its tensile strength. This is a serious ob-jection. It is most useful in hospital practice, where it is usedsoon after preparation. The simplicity of preparation is a strongfactor as regards its field of usefulness. On the whole, the plainand chromic gut fill all wants, , if properly prepared. Removal of Fats from Catgut.—A number of coils of gut 3feet in length (Fig. 46) are placed in an Erlenmeyer flask andsubmerged in eth
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
