<unk>  (abbreviated ICNB) is a<unk><unk>  which temporarily or permanently interrupts the flow of signals along an<unk><unk> , usually performed to relieve pain.
Intercostal nerve block
Endoscopic thoracic sympathectomy
Cricoidectomy
Cricopharyngeal myotomy
Hyperinflation therapy
Targeted lung denervation
Lobotomy
Airway pressure release ventilation