Drug releasing elastic band and method
AssigneeBoston Scientific Scimed, Inc.
InventorsMarcia L. O'Conner, Michael S. Banik, Kathleen M. Miller
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Abstract
A ligating band according to the present invention comprises an elastomeric layer and an inner drug releasing layer. The inner drug releasing layer includes a therapeutic agent, for example a chemotherapeutic agent for treating a mucosa, polyp or other growth. A ligating band according to the present invention also may include an inner diffusion barrier disposed between the elastomeric layer and the inner drug releasing layer, with the elastomeric layer and the inner drug releasing layer each contacting the inner diffusion barrier.
Claims20
A ligating band comprising:
- an elastomeric layer;
- an inner drug releasing layer, the inner drug releasing layer including a therapeutic agent;
- and
- an inner diffusion barrier disposed between the elastomeric layer and the inner drug releasing layer, each of the elastomeric layer and the inner drug releasing layer contacting the inner diffusion barrier;
- wherein the ligating band forms a continuous elastic perimeter about an open center area for ligating tissue.
A method of ligating tissue using a ligating band dispenser, the ligating band dispenser including a tip having a recess, comprising:
- drawing the tissue into the recess of the tip of the ligating band dispenser;
- and
- deploying a ligating band around a base of the tissue, wherein the ligating band forms a continuous elastic perimeter about an open center area for ligating tissue and includes an inner drug releasing layer in contact with an elastomeric layer, the inner drug releasing layer including a therapeutic agent, and an inner diffusion barrier disposed between the elastomeric layer and the inner drug releasing layer, each of the elastomeric layer and the inner drug releasing layer contacting the inner diffusion barrier.
Dependencies are inferred from the claim text.