170 COMMON DISEASES. 



least broken up and softened to some extent every time the cork- 

 screw is introduced. 



The simple device shown in figure No. 6l is very satis- 

 factory for relieving' cases of this kind. It consists of a piece of 

 No. 10 or 12 wire, about 12 feet long; the ends bent together 

 and twisted as shown in the cut, leaving a suitable loop at wdiat 

 was originally the middle of the wire. This is introduced into the 

 gullet like a probang. The farther end passes the obstruction, 

 which is then included by the loop ; the wire is withdrawn and the 

 obstruction is loosened, moved upward a short distance or re- 

 moved entirely. If the instrument merely loosened the obstruc- 

 tion, then the process is repeated. This has proven most satis- 

 factory in the writers experience. In all work of this kind the 

 nose should be extended and the gullet kept in as straight a line 

 as possible. 



The probang or wire loop should be introduced slowly and 

 carefully. If the animal coughs the instrument should be remov- 

 ed and another trial made, as the coughing indicates that the in- 

 strument has entered the trachea. The introduction and after 

 use of these instruments must be very gentle and cautious. 



Whole eggs that have been partly swallowed may be punc- 

 tured by a large needle and then easily crushed. 



Tense, spasmodic action of the gullet may be controlled by 

 the use of morphine or aconite. 



Whips and other stiff rigid instruments must be avoided, as 

 they are very apt to tear the gullet just below the pharnvx. 

 Whatever is used must be smooth and flexible. The after treat- 

 ment consists of soft food, for at least a week. 



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