Is it necessary to do ghusl after having an ultrasound tube inserted into the vagina?
Question

I'm undergoing an infertility treatment for couple of months. For this I have to go to doctor's office regularly for ultrasound and cycle monitoring. For ultrasound, nurse inserted a tube into vagina to get a closer look. Sometime the medicine also inserted into vagina. My question is that does the Ghusul (bath) is compulsory after the insertion of ultrasound tube or a medicine into the vagina?.
Praise be to Allah.The Standing Committee was asked: if a woman or doctor inserts a medical instrument or medicine into the vagina, does she have to do ghusl? Does that invalidate fasting? 
They replied:  
If what is mentioned happens, that does not require ghusl from janaabah, and it does not invalidate fasting.