. The principles and practice of dental surgery. Fig. 29(; (Figs. 294, 295.) After the patient has rested a few minutes, asecond, third, and, when necessary, a fourth ligature should beintroduced. The passage of the needle thi-ough the left marginof the velum, from before backward, is represented in Fig. 294,and in Fig. 295, through the right margin, fi-om behind licrature first introduced should now be tied, bringinii thoedges of the velum close to-gether, and, afterward, thesecond and third, cutting offthe ends of each. After thefirst knot of the ligature istied, some precaution
. The principles and practice of dental surgery. Fig. 29(; (Figs. 294, 295.) After the patient has rested a few minutes, asecond, third, and, when necessary, a fourth ligature should beintroduced. The passage of the needle thi-ough the left marginof the velum, from before backward, is represented in Fig. 294,and in Fig. 295, through the right margin, fi-om behind licrature first introduced should now be tied, bringinii thoedges of the velum close to-gether, and, afterward, thesecond and third, cutting offthe ends of each. After thefirst knot of the ligature istied, some precaution shouldbe used to prevent this fromslipping, while the second The method adoptedby M. Roux for knotting theligature is, to make the firstfold of the knot with thefore-fingers of each handplaced back to back, and afterthis has been drawn suffici-. 53 MiO STAPHYLORAPHY. cntly tight, it is seized by an assistant with a pair of forceps,and held until the second and last turn of the knot is made. In Fig. 296. three ligatures areshown in place, preparatory tobeing tied, which last process isseen completed in Fig. 297. Some surgeons use two needlesfor each ligature, instead of one,as in the method just described—one at each end, and introducethem from behind forward, onethrough each margin of thedivided velum. The following cut, Fig. 298,copied from Listons and Miit-ters Surgery, represents theDeedle-holder, or porte, ofSchwerdt, which is, perhaps, as well adapted to the purpose asany instrument that can be employed. Dr. Physics forceps Fig. 298.
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