94 



LOCALIZED ELECTRIZATION. 



necessary to faradize tliese muscles. For this purpose a metallic 

 olive (tig. 33), mounted on a stem of metal, insulated by gum 



Fig. 33. — Rectal rbeophore. 



elastic, is introduced into the rectum, and then connected ^vith 

 one of the poles of an induction apparatus. A second (moist) 

 rheophore is moved over the circumference of the anus. When 

 the apparatus is in action, the stem is so moved as to place the 

 olive in contact with the muscles of the lower part of the rectum ; 

 tliat is, with the levator and sphincter ani. In order to excite the 

 muscular coat of the rectum, the olive should be moved over all 

 its internal surface. It is always necessary first to free the rectum 

 from foecal matter, by means of enemata. 



If it be desired to overcome constipation, due to insensibility 

 of the mucous membrane of the rectum or to paralysis of the 

 muscular coat, the rheophore must be introduced as before 

 described, and moved over the whole surface of the intestine. 

 The margin of the anus is so sensitive that the slightest faradic 

 excitation produces insupportable tenesmus. Care 

 nmst therefore be taken always to insulate the 

 stem that bears the olive, unless it be wished 

 to act upon the sphincter muscle. 



2. Faradization of the hladder. 



In all faradic operations upon the bladder, the 

 organ must first be emptied, as in faradization 

 of the rectum. \Yithout this precaution, the 

 excitatiou, instead of being linjited to the parietes 

 of the two organs, would extend to the sacra], or 

 the hypogastric jdIcxus. 



In order to faradize the muscular fibres of 

 the neck of the bladder, an olive-shaped rheo- 

 phore is introduced into the rectum, as above 

 described. A curved metallic sound (Qg. 34), 

 insulated, by being covered with an ela-stic 

 catheter to within two or three centimetre.s 

 of its vesical extremity, is then introduced into 

 the bladder, and placed in connection with one 

 of the poles of an induction apparatus. When 

 ^'"ihco^iwre""'" ^^^'^ ^^ ^^ action, the sound is drawn back in 



