General Surgery 9 



son-French model. Its main feature is its self-locking action. A 

 swinging cam is suspended in a frame through which the control 

 rope passes. The frame is supplied with a screw-clamp by means 

 of which it is attachable to and detachable from any part of any table 

 at will. One set of four large and one set of four small noose leg- 

 bands are provided. These will fit an animal of any size, and are 

 connected to the control ropes by steel snaps. Should the operator 

 wish to tighten the control rope he does so by merely pulling on it, 

 and the moment he lets it go it is firmly clinched by the cam. The 

 animal can be quickly released from the control position at any mo- 

 ment by simply holding back the handle bars, by which the cam is 

 prevented from clinching and allows free passage of the rope. A 

 simpler but less effectual instrument was invented by Hobday, in 



No. 5. Hobday's Hopples. 



England. Lacking any of these devices a very simple method of 

 hoppling is to take four pieces of soft rope of good length and con- 

 vert one extremity of each into a noose. This is slipped over the 

 foot and tightened while the other end is fastened to the leg of the 

 table. 



Operating Table. An 

 ordinary kitchen table ans- 

 wers all purposes. Where 

 may be covered with zinc 

 practice warrants it, this 

 which should drain to the 

 center. Here a small pipe 

 should carry off fluids to a 

 bucket suspended beneath. 

 To prevent the coat of the 

 animal from becoming sat- 

 urated with blood or other no. T. Young's Operating Trough. 



