Patent ID: 7007691
Filing Date: 2006-03-07
Classification: A61M

Abstract:
1. An apparatus for reversing flow of inspiratory gas through a unilimb breathing circuit for humidification of the inspiratory gas, said apparatus comprising: a reverse flow adapter comprising a venting aperture, said reverse flow adapter adapted to be coupled to an inner tube and an outer tube of the unilimb breathing circuit, wherein the inspiratory gas flows through said reverse flow adapter and subsequently through the outer tube of the unilimb breathing circuit, and wherein said venting aperture is in fluid communication with the inner tube of the unilimb breathing circuit; wherein the outer tube retains moisture deposited therein via condensation of moisture from patient expiratory gases; wherein said reverse flow adapter is adapted to be coupled to a conventional inspiratory gas source; and, wherein inspiratory gas flows from the conventional inspiratory gas source, through said reverse flow adapter, through the outer tube, and subsequently interacts with and is humidified by said moisture condensed within the outer tube, thereby creating a humidified inspiratory gas for patient inhalation.