Fig. 4
From: Fallopian tube recanalization for the management of infertility
HSG catheter with balloon inflated. This catheter is 5.5 French. The plastic stiffener which helps stabilize it the catheter at the cervical os can be advanced into the cervix and the HSG catheter exchanged for a 5 French Kumpe catheter for selective salpingography and FTR. There are many types of HSG catheters on the market including some which are 9 French and have a lumen which will accommodate catheters up to 6.0 French