A<unk>  is used by dentists to induce inhalation sedation in their patients. It delivers a mixture of nitrous oxide ("laughing gas") and oxygen. A<unk>  is simpler than an anaesthetic machine, as it does not feature the additional medical ventilator and anaesthetic vaporiser, which are only needed for administration of general anesthetics. Instead the<unk>  is designed for the light form of anaesthesia with nitrous oxide, where the patient is less sensitive to pain but remains fully conscious.
Relative analgesia machine
Patient-controlled analgesia
Extended-release morphine
Anaesthetic machine
Intrathecal pump
Spinal cord stimulator
Muscle energy technique
Placebo analgesia