OPERATING TABLES. 



253 



Fig. 283. Key Hobble Looped 

 Ready for Application. 



Key Hohhle. 



Figure 283 represents the key hobble. The keys for this 



hobble are made of brass or other 

 metal having a shoulder or ri'm 

 just underneath the head (B) of 

 the keys to prevent them from 

 pressing too far into the wooden 

 top of the table. The hobble con- 

 sists of a piece of tape, leather or 

 webbing passed through the ring 

 (B) on the key, the two ends be- 

 ing stitched together. In order to 

 use this key hobble it becomes nec- 

 essary to have key holes cut into 



the table top at intervals of about three inches. (See Hobday's 



table, Figure 289.) • 



Young's Operating Trough. 



The operating trough of Young, Figure 284, is a valuable 

 adjunct to most operating 

 tables. It is useful in drain- 

 ing off the fluids as well as 

 holding the patient in a sta- 

 tionary position. This trough 

 sets flat on the table and is 

 made of enamelled iron. It 

 can be readily rendered 

 sterile by boiling or by cleansing with any of the ordinary 

 disinfectants. 



FigTire 285 represents the extension grate which is used for 

 the same purpose as the operating trough. This appliance is 

 depressed in its center and provided with a slat floor (a). It 

 readily fits the top of any operating table. 



Bernard's Operating Table. 



The table of Bernard, Figure 286, is an ordinary flat-top 

 table (a) provided with an operating trough (b) and a head- 



Fig. 284. Young's Operating Trough. 



