A thin catheter refers to a slender tube that is used in medical procedures to insert into the body, usually through a small opening, for various purposes such as draining fluids or delivering medication. Full definition
Commonly used ways to help manage pain include breathing techniques such as those taught in Lamaze classes; pain - relief medicines given through injection; and epidurals, where doctors can give an anesthetic through a soft, thin catheter placed in the lower back. (kidshealth.org)
The procedure itself involves transferring specially washed semen directly into the uterus via a thin catheter. (verywellfamily.com)
During IUI treatment, specially washed sperm are transferred directly to the woman's uterus via the cervix through a thin catheter. (verywellfamily.com)