g6 



OPERATIVE TECHNIQUE. 



or by the finger (Figs. 105 and 106). In the former case the director, 

 hghtly held between the thumb and index finger, is introduced into an 

 already existing opening in the tissues, a convex or pointed knife is 



Fig. 99. 



slipped into the channel and steadily thrust orward with a lifting 

 movement, so that at the end of the stroke it is nearly at right angles 





^z-/' 



Fig. 100. 



to the long axis of the director. In some cases it may be necessary 

 to make the stroke towards the operator (Fig. 107). 



Fig. ioi. 



Where important organs might be endangered the operator grasps 

 with forceps and raises a portion of the tissue to be divided, the 



