Which, if any, catheter will be best for my child?

Depends. A catheter is a plastic tube. It can be placed in many different organs for many different purposes. You should discuss the specifics of your situation with your doctor. It is always better to not have a catheter if one is not needed as they are always an infection risk, however they are needed for care in many different medical conditions.
Poor question. To get the most out of the public HT site you need to follow some basic rules.1.Provide basic clinical information like age, condition,symptoms,etc.2.Ask a question that relates to the information provided.This is not a chat room & docs cannot see what you upload,previous or future questions. You are welcome to start over.What you submitted makes no sense.
Depends. How old is the child? What are you catheterizing? And for what?