Variable resistance pulmonary ventilation bypass valve and...

Details Variable resistance pulmonary ventilation bypass valve and... Variable resistance pulmonary ventilation bypass valve and...

2006-01-17

2008-08-05

Douglas, Steven O. (Department: 3771)

Surgery

Respiratory method or device

C128S207140, C128S200160

Reexamination Certificate

active

07406963

ABSTRACT:
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 one aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter/one-way valve, an air carrying conduit and a retention device for securing system elements in position. The system also includes a flow restriction device for controlling the flow of air through the air carrying conduit.

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