A patient is constantly disrupting therapeutic medical devices, such as intravenous lines and ...

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Before applying restraints, try less intrusive methods to keep the patient safe, such as calming music, a sitter, or covering medical devices so that the patient cannot see them. This will help avoid a lawsuit based on false imprisonment.
Nurses can apply restraints; security would only be needed in cases in which the patient was a danger to the nursing staff.
Sedatives are considered chemical restraints; the staff should first try less intrusive methods to keep the patient safe.
Moving the patient away from other patients would not be beneficial unless the staff thought that being near others made the patient more agitated.