Q: No, you won't need a disarm check, since you're the one who rigged it. You can simply remove the attachment and stow it away again!
Doc: Are you doing so through The Doctor (your AI)? Because you could just make a Heal check if you want... your Trauma Kit Utilities grant you a +4 bonus to Heal checks because of the supplies they contain. And they also have 2 Bio-foam canisters (so you have 4 total; using one up heals 5d4 Wound Points.