Methods and devices for maintaining patency of surgically created channels in a body organ
First Claim
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1. An implant to maintain an opening in the airway wall of a lung comprising:
- a support member;
a non-bioabsorbable polymer comprising a plurality of diffusion paths having at least one additive, where the additive is water soluble; and
an antiproliferative agent, where on implantation of the implant into the airway wall and upon dissolving of the additive, the plurality of diffusion paths allow for improved passage of the antiproliferative agent into the airway wall.
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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.
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Citations
18 Claims
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1. An implant to maintain an opening in the airway wall of a lung comprising:
- a support member;
a non-bioabsorbable polymer comprising a plurality of diffusion paths having at least one additive, where the additive is water soluble; and
an antiproliferative agent, where on implantation of the implant into the airway wall and upon dissolving of the additive, the plurality of diffusion paths allow for improved passage of the antiproliferative agent into the airway wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a support member;
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16. An implant to maintain an opening in the airway wall of a lung comprising:
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a support member; and
a multi-polymer comprising a plurality of drugs. - View Dependent Claims (17, 18)
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Specification