That can mean "anywhere where there are men."
For instance a diaphragm and spermicide.
Can you cite me a Church document giving this permission to use diaphragms and spermicides?
2. No one needs "permission" from the Church the State or anyone else to use protective body armor. The same applies to a barrier in the vagina. A barrier is not a sin. Choosing contraceptive sex is a sin.
I know you would like to see a more definitive statement. I'm just on my way to Mass and I have my mother-in-law's funeral in the afternoon, so I might not be able to get to it for you. You might try googling Congo 1960 rape Catholic nuns diaphragm
If you find anything interest4ing, pleas post us a link because I'd like to read it, too.