1. Valve Drainage of the Pleural Cavity
HENRY J. HEIMLICH, M.D., F.C.C.P. 
Diseases of the Chest 
Volume 53, Issue 3, Pages (March 1968)
DOI: /chest
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Valve.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2 Chest catheter, valve, connecting tube, plastic bag.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Valve chest drainage in patient with spontaneous pneumothorax.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

5. FIGURE 4 Valve chest drainage in patient draining both air and fluid.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions

6. FIGURE 5
Diagram illustrating the mechanism of expanding the lung when valve drainage is used.
Diseases of the Chest  , DOI: ( /chest )
Copyright © 1968 The American College of Chest Physicians Terms and Conditions