The Operation for Roaring. 



149 



12. Hook, for seizing and raising the lower end of the 

 aryta^noid cartilage (Fig. 15). This is ^ inches in length, 

 the handle beinof 7 inches. 



iQl.0 a soM 



Fig. 15. 

 13. Special forceps, with toothed ends, to seize the body 

 of the arytsenoid cartilage, and a catch at the handles to 

 fix the blades, and eyelets for the fingers (Fig. \Q). The 

 length is 8 inches. 



ARNOLD r. SONS LOUDON 



Fig. 16. 



14. Curved scissors, to cut through the mucous mem- 

 brane (Fig. 17). The length is 8 J inches. 



15. Two retractors. 



Fig. 17. 

 to keep the 



trachea 



open 



duringf 



operation (Fig. 18). These are perhaps best made of strong 

 wire slightly flattened, double, and opened and bent, so as to 



Fig. 18. 



form an angular portion about 3 or 4 inches wide. The 

 length of the handle part may be 6 to 8 inches, that of the 

 bent portion about 2 inches. 



