Medical restraint
From wipipedia.org
Medical restraints are a subset of general physical restraint used for medical purposes. Unlike some other forms of restraint, medical restraints are designed to restrain their wearer without causing pain.
Medical restraints are generally used to prevent people with severe physical or mental distorders from harming themselves or others.
Forms of medical restraint include four-point restraints, fabric body holders and straitjackets, as well as less-confining devices such as safety vests, jackets, lap and wheel chair belts.
In BDSM medical restraints can be used for longer term bondage senarios
