Prosthesis for the lung and the use thereof

A method for treating pulmonary fibrosis, comprising following steps:

• reducing mechanical tension on the alveolar epithelium at an end of normal inspiratory, by placing a prosthesis under a pulmonary lobe of a lung in the pleural cavity of a subject so as to reduce the level of mechanical tension on the alveolar epithelium at the end of normal inspiratory, wherein the subject has pulmonary fibrosis in the lung;
• and attenuating progression of the pulmonary fibrosis of the subject,
• wherein the prosthesis is in a shape of plate, ellipse, irregular U, arc, conical, scapula, or irregular, so as to occupy the space under the lung lobe,
• wherein the prosthesis is solid,
• wherein the prosthesis is made of soft spongy latex, foam latex, 380 micron hollow fiber, gelatin foam, plastic sponge, rubber, silicone rubber, silicone gel, carbon nanotube, graphene, ultra-light porous carbon, hollow porous carbon, carbon fiber, or carbon titanium alloy,
• wherein the prosthesis occupies at least ¼ of a space surrounded by a basal area of the pulmonary lobe, diaphragm and a wall of pleural cavity at the end of normal inspiratory,
• wherein the prosthesis comprises a body having an upper side, a lower side, a lateral side extending between the upper side and the lower side, and a medial border approaching the heart, wherein the lateral side is opposite to the medial border, and
• wherein the lateral side is at a height of 0.5 cm-8 cm, and thickness of a wall of the prosthesis is between 0.1-4 cm.