| 摘要 |
Disclosed is a pump device that can be implanted into a body passageway, such as into a bronchial passageway. The pump device can be used to pump fluid through the body passageway, such as in order to assist the expiration of fluid from a region of the lung that fluidly communicates with the body passageway. The pump device includes a housing that defines an internal chamber, wherein fluid can flow through the chamber. The housing is dimensioned for insertion into a bronchial passageway. The pump device also includes a fluid propulsion mechanism in fluid communication with the chamber. The fluid propulsion mechanism is positioned to propel fluid through the chamber so as to pump fluid through the bronchial passageway in a desired direction. |
