Removable lung reduction devices, systems, and methods
First Claim
Patent Images
1. A device for insertion into a lung airway passage, the device having a proximal end and a distal end and comprising:
- a plurality of elongate frame supports configured to transition between a collapsed configuration and an expanded configuration, one or more of the frame supports having;
an anchor portion comprising a piercing portion configured to pierce an airway wall and a bent portion configured to limit a depth to which the piercing portion pierces an airway wall, the piercing portion extending from a bifurcated portion of the anchor portion; and
a membrane support portion connected to the anchor portion, the membrane support portion having a convex side and a concave side;
a flexible membrane forming a one-way valve and having an axial centerline and overlaying at least a portion of the convex side of the membrane support portion; and
a ring member, the anchor portion connected to the ring member and extending from the ring member in a distal direction away from the axial centerline when the elongate frame supports are in the expanded configuration.
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Accused Products
Abstract
An air passageway obstruction device includes a frame structure and a flexible membrane overlying the frame structure. The frame structure is collapsible upon advancement of the device into the air passageway, expandable into a rigid structure upon deploying in the air passageway and recollapsible upon removal from the air passageway. The flexible membrane obstructs inhaled air flow into a lung portion communicating with the air passageway. The device may be removed after deployment in an air passageway by recollapsing the device and pulling the device proximally through a catheter.
514 Citations
17 Claims
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1. A device for insertion into a lung airway passage, the device having a proximal end and a distal end and comprising:
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a plurality of elongate frame supports configured to transition between a collapsed configuration and an expanded configuration, one or more of the frame supports having; an anchor portion comprising a piercing portion configured to pierce an airway wall and a bent portion configured to limit a depth to which the piercing portion pierces an airway wall, the piercing portion extending from a bifurcated portion of the anchor portion; and a membrane support portion connected to the anchor portion, the membrane support portion having a convex side and a concave side; a flexible membrane forming a one-way valve and having an axial centerline and overlaying at least a portion of the convex side of the membrane support portion; and a ring member, the anchor portion connected to the ring member and extending from the ring member in a distal direction away from the axial centerline when the elongate frame supports are in the expanded configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical device for treating lung conditions, the medical device comprising:
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an occlusion portion having an open proximal end and a closed distal end, the occlusion portion comprising; a plurality of frame members having a convex side and a concave side; and a flexible membrane forming a one-way valve and overlaying at least a portion of the convex side of the frame members; and an anchor portion connected to the occlusion portion and comprising; an ring member; and a plurality of anchors extending from the ring member in a distal direction, one or more of the anchors comprising a piercing tip extending from a bifurcated portion of the anchor portion and a bent portion, the bent portion limiting a depth to which the piercing tip pierces an airway wall when the medical device is deployed in an airway passage. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification