352 



VETERINARY SURGICAL OPERATIONS 



RESTRAINT. — The horse is cast with the ropes or har- 

 ness, anaesthetized with chloroform and then rolled into the 

 dorsal position with the head well extended along the floor. 

 Williams performs upon the operating table under profound 

 anaesthesia. The author has performed it frequently without 

 the aid of an anses'thetic, the head being held by three strong 

 assistants, one on each side holding the halter and ear, the 

 other at the nose. But that this method is far from meeting 

 the highest' ideals, goes without saying, for when the critical 

 steps of the procedure are reached an unavoidable movement 

 is exceedingly annoying. 



The recommendation in this connection, based upon fre- 

 quent trials, is to administer chloroform. 



Fig. 171 — Form of Trachea Tube Used to Prevent Post-Operative 

 Aspiration of Blood. 



INSTRUMENTS, ETC.— 



i. Scalpel. 



2. Dissecting forceps. 



3. A number of artery forceps. 



4. A long pair of scissors. 



5. Hand or spring retractors. 



6. A long handled tenaculum, or a long forcep. 



7. Clipper and razor. 



8. Antiseptic solutions. 



9. Cotton pledgets for washing and bailing. 

 ANTISEPSIS.— Ordinary antisepsis is demanded. It is 



advisable to avoid immediate infection of the parts operated 

 upon with septic instruments. Although the wound is un- 

 avoidably left exposed to infection after the operation, the 



