A long term oxygen therapy system having an oxygen supply directly linked with
a patient's lung or lungs may be utilized to more efficiently treat hypoxia caused
by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis.
The system includes an oxygen source, one or more valves and fluid carrying conduits.
The fluid carrying conduits link the oxygen source to diseased sites within the
patient's lungs. A collateral ventilation bypass trap system directly linked with
a patient's lung or lungs may be utilized to increase the expiratory flow from
the diseased lung or lungs, thereby treating another aspect of chronic obstructive
pulmonary disease. The system includes a trap, a filter/one-way valve and an air
carrying conduit.