Repellets and Repulsion 



597 



the instrument has too great a diameter, it is ^exceedingly diffi- 

 cult to introduce and may cause injury to the 30ft parts of the 

 mother while being applied. After it has bee located at the 

 proper point and force applied to it, if the transverse diameter of 

 the crutch is very great, the ends may project beyond the parts 

 of the fetus to which it is applied, catch in the walls of the uterus 

 or vagina and more or less seriously injure them. We therefore 

 prefer a repeller with a very short crutch, or transverse piece, 

 which may be readily introduced completely covered by the hand 

 and easily applied to the desired part of the fetus. 



%J 



) 



Fig. 94. Rbpei<i<ERS. 



a, Wither's repeller. ( Sharp & Smith ) 



b, Hinged repeller. 



c, Reindl's repeller with attachments 



(2 and 3 pronged repellers, blunt 

 and sharp hooks, and vaginal 

 dilator). (Hauptner). 



d. Cup -shaped repeller of Biuz. 

 (Hauptner). 



e. Giinther's repeller. (Hauptner). 



f. Kaiser's repeller with two detach- 

 able repellers and one cord carry, 

 ing hook. 



In a large proportion of cases where repulsion is desired, the 

 fetus is dead. In such we use a repeller having a sharp spike in 

 its center. Figs. 94 a and 106 e, which sinks into the tissues of 

 the fetus and gives the instrument a secure hold. 



If the fetus is alive, the small spike, passing into the soft tis- 

 sues, produces an aseptic wound, which heals without inflam- 

 mation and without requiring material attention, so that it is not 



