Removable lung reduction devices, systems, and methods
First Claim
1. A device for reducing the size of a lung comprising an obstructing structure dimensioned for insertion into an air passageway communicating with a portion of the lung to be reduced in size, the obstructing structure having an outer dimension which is so dimensioned when deployed in the air passageway to preclude air from flowing into the lung portion to collapse the portion of the lung for reducing the size of the lung, the obstructing structure being collapsible to permit removal of the obstruction device from the air passageway.
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0 Petitions
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.
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Citations
32 Claims
- 1. A device for reducing the size of a lung comprising an obstructing structure dimensioned for insertion into an air passageway communicating with a portion of the lung to be reduced in size, the obstructing structure having an outer dimension which is so dimensioned when deployed in the air passageway to preclude air from flowing into the lung portion to collapse the portion of the lung for reducing the size of the lung, the obstructing structure being collapsible to permit removal of the obstruction device from the air passageway.
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8. An assembly comprising:
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a device for reducing the size of a lung, the device being dimensioned for insertion into an air passageway communicating with a portion of the lung to be reduced in size, the device having an outer dimension which is so dimensioned when deployed in the air passageway to preclude air from flowing into the lung portion to collapse the portion of the lung for reducing the size of the lung;
a catheter having an internal lumen and being configured to be passed down a trachea, into the air passageway; and
a retractor dimensioned to be passed down the internal lumen of the catheter, seizing the device, and pulling the obstruction device proximally into the internal lumen to remove the device from the air passageway, the device being collapsible after having been deployed to permit the device to be pulled proximally into the internal lumen of the catheter by the retractor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of removing a deployed air passageway obstruction device from an air passageway in which the device is deployed, the method including the steps of:
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passing a catheter, having an internal lumen, down a trachea and into the air passageway;
advancing a retractor down the internal lumen of the catheter to the device;
seizing the device with the retractor;
collapsing the device to free the device from deployment in the air passageway; and
pulling the device with the retractor proximally into the internal lumen of the catheter. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. An air passageway obstruction device comprising:
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a frame structure; and
a flexible membrane overlying the frame structure, the frame structure being collapsible upon advancement of the device into the air passageway, expandable into a rigid structure upon deployment in the air passageway whereby the flexible membrane obstructs inhaled air flow into a lung portion communicating with the air passageway, and recollapsible upon removal from the air passageway. - View Dependent Claims (25, 26, 27, 28)
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29. An air passageway obstruction device comprising:
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frame means for forming a support structure; and
flexible membrane means overlying the support structure, the frame means being expandable to an expanded state within an air passageway to position the membrane means for obstructing air flow within the air passageway and being collapsible for removal of the device from the air passageway. - View Dependent Claims (30, 31, 32)
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Specification