尿瓶

つまり、この花瓶(かびん)を尿瓶の代わりに使えってことか？

In other words, he's saying to use the flower vase in place of the urine bottle?

普通の看護師は、ちんこに溲瓶も添えるし手術の時(とき)は剃毛もするぞ。

A typical nurse will do such things as helping with a urinal bottle, and shaving in preparation for surgery!

尿瓶でおしっこするのを手伝ってあげることを専門用語でなんと言いますか？

What's the technical terminology for assisting someone to go to the toilet with a urine bottle?