Methods and devices for maintaining surgically created channels in a body organ
First Claim
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1. An implant for maintaining an opening in a wall of a body organ, the implant comprising:
- a plurality of members forming plurality of cells, each individual cell having a proximal and distal ends forming a proximal and distal end of the implant, the plurality of cells each arranged adjacently to another cell in a circumferential manner about an axis of the implant to form a support member, each cell being joined to another cell at a mid portion of the cell, where the distal and proximal ends are unconnected to any adjacent cell;
at least one control member having a serpentine configuration within at least one cell, where upon expansion of the cell, the control member straightens to limit expansion of the cell; and
a composition located on at least an outer surface of the support member comprising an antiproliferative agent.
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Abstract
This is directed to methods and devices suited for maintaining an opening in a wall of a body organ for an extended period. More particularly devices and methods are directed maintaining patency of channels that alter gaseous flow within a lung to improve the expiration cycle of, for instance, an individual having chronic obstructive pulmonary disease.
254 Citations
33 Claims
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1. An implant for maintaining an opening in a wall of a body organ, the implant comprising:
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a plurality of members forming plurality of cells, each individual cell having a proximal and distal ends forming a proximal and distal end of the implant, the plurality of cells each arranged adjacently to another cell in a circumferential manner about an axis of the implant to form a support member, each cell being joined to another cell at a mid portion of the cell, where the distal and proximal ends are unconnected to any adjacent cell;
at least one control member having a serpentine configuration within at least one cell, where upon expansion of the cell, the control member straightens to limit expansion of the cell; and
a composition located on at least an outer surface of the support member comprising an antiproliferative agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification