. Surgery, its principles and practice . ar and cannula are pushed into the cavity of the tunica position of the testicle, which is posterior, should be kept in mindand care must be exercised not to injure this organ with the trocar. (See Fig. 327.) The trocar is with-drawn and the cannula ispushed well to the upperlimit of the sac and the fluidis allowed to escape. It isimportant that all the fluidshould be withdrawn, and inorder to insure this, it is bestto withdraw the last of itwith a half-ounce aspiratingsyringe, which fits the can-nula. Leaving the cannulain place at the up
. Surgery, its principles and practice . ar and cannula are pushed into the cavity of the tunica position of the testicle, which is posterior, should be kept in mindand care must be exercised not to injure this organ with the trocar. (See Fig. 327.) The trocar is with-drawn and the cannula ispushed well to the upperlimit of the sac and the fluidis allowed to escape. It isimportant that all the fluidshould be withdrawn, and inorder to insure this, it is bestto withdraw the last of itwith a half-ounce aspiratingsyringe, which fits the can-nula. Leaving the cannulain place at the upper part ofthe sac, from 5 to 20 dropsof a 95 per cent, solution ofpure carbolic acid are nowinjected into the sac and thecannula is withdrawn. As thisis done the part of the sacthrough which the cannulapassed should be graspedwith the thumb and finger firmly and held for four or five minutes, whilewith the other hand the sac is kneaded so as to bring the carbolic acidin contact with all parts of the wall of the hydrocele. Following the. Fig. 327.—Tapping a Hydrocele.
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