One-way valve devices for anchored implantation in a lung
First Claim
1. An air passageway obstructing device comprising:
- frame means for forming a support structure, the support structure having a distal end and a proximal end;
flexible membrane means for obstructing air flow within the air passageway, the flexible membrane means having an open proximal end and a closed distal end, the flexible membrane means carried by the support structure; and
anchoring means to anchor the air passageway obstructing device, the anchoring means carried by the support structure,the frame means being expandable to an expanded state within an air passageway to support the membrane means and the anchoring means, the anchoring means having at least one tissue engagement means the at least one tissue engagement means configured to pierce the tissue surrounding the obstructing device to a fixed depth, the at least one tissue engagement means positioned distal to the distal end of the support structure, the anchoring means being releasable for removal of the device from the air passageway;
wherein the at least one anchoring means includes a resilient material for imparting a force against the air passageway to deform the air passageway to more positively anchor the obstructing means.
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Accused Products
Abstract
An intra-bronchial device placed and anchored in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes a support structure, an obstructing member carried by the support structure that reduces ventilation to the lung portion by preventing air from being inhaled into the lung portion, and at least one anchor carried by the support structure that anchors the obstruction device within the air passageway. The anchor may engage the air passageway wall by piercing or friction, include a stop dimensioned for limiting the piercing of the air passageway wall, and may be releasable from the air passageway for removal of the intra-bronchial device. The anchors may be carried by a peripheral portion of the support structure, or by a central portion of the support structure. The obstructing member may be a one-way valve.
299 Citations
14 Claims
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1. An air passageway obstructing device comprising:
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frame means for forming a support structure, the support structure having a distal end and a proximal end; flexible membrane means for obstructing air flow within the air passageway, the flexible membrane means having an open proximal end and a closed distal end, the flexible membrane means carried by the support structure; and anchoring means to anchor the air passageway obstructing device, the anchoring means carried by the support structure, the frame means being expandable to an expanded state within an air passageway to support the membrane means and the anchoring means, the anchoring means having at least one tissue engagement means the at least one tissue engagement means configured to pierce the tissue surrounding the obstructing device to a fixed depth, the at least one tissue engagement means positioned distal to the distal end of the support structure, the anchoring means being releasable for removal of the device from the air passageway;
wherein the at least one anchoring means includes a resilient material for imparting a force against the air passageway to deform the air passageway to more positively anchor the obstructing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of reducing the size of a lung by collapsing a portion of the lung with a removable device, the method including the steps of:
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providing an intra-bronchial device comprising a support structure having a distal end and a proximal end, an obstructing means carried by the support structure which is so dimensioned when deployed in an air passageway communicating with the portion of the lung to be collapsed to preclude air from being inhaled, and at least one anchoring means carried by the support structure that anchors the obstructing means when at least one anchoring means is deployed, the anchoring means having at least one tissue engagement means the at least one tissue engagement means configured to penetrate the tissue surrounding the obstructing device to a fixed depth the tissue engagement means positioned distally to the distal end of the support structure; placing the obstructing means in the air passageway; deploying at least one anchoring means; and removing at least the obstructing means;
wherein the at least one anchoring means includes a resilient material for imparting a force against the air passageway to deform the air passageway to more positively anchor the obstructing means. - View Dependent Claims (11, 12, 13, 14)
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Specification