Removable anchored lung volume reduction devices and methods

Details Removable anchored lung volume reduction devices and methods Removable anchored lung volume reduction devices and methods

A - Human Necessities

61

B

A61B 17/04 (2006.01) A61B 17/12 (2006.01) A61B 17/22 (2006.01)

Patent

CA 2484086

An intra-bronchial device may be placed in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes an obstructing member (40) that prevents air from being inhaled into the lung portion to collapse the lung portion, and an anchoring device (100) that anchors the obstructing member in the air passageway by engaging the obstructing member (90) and the air passageway wall. The anchoring device (100) may frictionally engage the obstructing member and the air passageway, or engage both by piercing. The engagement provided by the anchoring device may be releasable for removal of the obstructing member (90). The anchoring device (100) may be balloon expandable from a first shape to a second shape that engages the obstructing member (90) and the air passageway. The obstructing member (90) may be a one-way valve.

L'invention concerne un dispositif intrabronchique susceptible d'être implanté dans une voie aérienne pour réduire un volume de zone pulmonaire associé à cette voie. Le dispositif comprend un obturateur qui empêche l'air inhalé de pénétrer dans la zone, induisant une réduction du volume pulmonaire correspondant, et un élément d'ancrage de l'obturateur dans la voie aérienne, par imbrication de l'obturateur et de la paroi de la voie. L'élément d'ancrage peut réaliser cet ancrage par frottement, ou par percement. Il s'agit d'un ancrage amovible permettant l'extraction de l'obturateur. L'élément d'ancrage est extensible par ballonnet, depuis une première forme vers une seconde forme permettant l'imbrication susmentionnée. L'obturateur peut être un clapet de retenue.

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