Pumping Breast Milk Do You Know Anyone Who Is Exclusively Pumping Breast Milk?

Do you know anyone who is exclusively pumping breast milk? - pumping breast milk

I mean simply to extract the milk and the baby. and never directly from the breast, the baby mama?
I know that the adhesive material breastfeeding ect .. I just want to know if there is someone who is pumping milk and how long they do it?