The invention provides methods of performing lung volume reduction to treat a patient. One aspect of the invention provides a method of compressing a first portion of a lung of a patient including the following steps: providing a vent connecting the first portion of the lung to the exterior of the patient;...http://www.google.com.tw/patents/US7549984?utm_source=gb-gplus-share專利 US7549984 - Method of compressing a portion of a lung
