What is the name of the device used to prevent self mutilation or destruction of a bandage?

The device used to prevent self-mutilation or the destruction of a bandage is often referred to as a "bandage retention device" or "bandage guard." These devices can include various forms of protective covers or restraints that help keep the bandage in place while preventing the individual from removing or damaging it. In some cases, more specific terms like "anti-picking glove" or "self-injury prevention device" may also apply, depending on the context and design.