94 
PROF. W. L. WILLIAMS’ 
New York State Veterinary College, Cornell University, 
Ithaca, N. Y., Modification of Albrechtsen’s Uterine 
Catheters, Return Flow, and Knowles 
Uterine Forceps for Sterility in the Cow. 
Fig. 22. Knowles’ Special Uterine Forceps made in two lengths. Short 
Forceps, 15 inches long. Long Forceps, 20 inches long. 
Instructions for using these instruments: 
1. The 20-inch long uterine forceps are inserted into 
the vagina and guided by the hand to the external os uteri. 
The forceps are then opened and the one jaw is inserted as 
deeply as practicable into the os uteri; the other passes out- 
side the lip of the os uteri. The forceps are then closed, 
grasping the lip of the vaginal portion of the uterus. Trac- 
tion is exerted upon the forceps and the cervical portion of 
the uterus drawn back toward or into the vulva. 
Albrechtsen’s Uterine Catheters made in two styles and four sizes. 
Fig. 24. Albrechtsen’s Single Curve Catheter. 
