Gastric banding device
First Claim
1. A device comprising:
- an elongate gastric band, having a radially expandable lumen, that forms a stoma opening in the stomach by encircling and partitioning a stomach into an upper stomach and a lower stomach; and
a hydrogel material positioned in the lumen that expands when hydrated to at least partially expand the lumen and reduce the size of the stoma opening.
1 Assignment
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Accused Products
Abstract
A gastric banding device contains an expandable material. The expandable material may include, for example, a hydrogel material that expands when hydrated. The hydrogel material may include a single or multiple monolithic components, and/or may include hydrogel material in particulate form, such as hydrogel beads, microspheres, or powder. The gastric banding device includes an elongate gastric band having an expandable lumen that forms a stoma opening in the stomach by encircling and partitioning the stomach into an upper stomach and a lower stomach. The hydrogel material is positioned in the lumen and expands when hydrated to at least partially expand the lumen, thus decreasing the size of the stoma opening.
49 Citations
31 Claims
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1. A device comprising:
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an elongate gastric band, having a radially expandable lumen, that forms a stoma opening in the stomach by encircling and partitioning a stomach into an upper stomach and a lower stomach; and
a hydrogel material positioned in the lumen that expands when hydrated to at least partially expand the lumen and reduce the size of the stoma opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device comprising:
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a gastric occluding device positioned to restrict ingestion of food by a patient and having at least one expandable lumen;
an expandable material positioned within the lumen that expands when hydrated to at least partially expand the lumen. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method comprising:
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implanting a gastric band having at least one expandable lumen with material that expands when hydrated positioned therein such that the gastric band forms a stoma opening in the stomach of a patient by encircling and partitioning a stomach into an upper stomach and a lower stomach; and
injecting fluid into the expandable lumen to at least partially hydrate the material and to decrease the stoma opening. - View Dependent Claims (25, 26, 27, 28)
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29. A method comprising:
implanting a gastric band having at least one expandable lumen filled with a fully hydrated hydrogel material such that the gastric band forms a stoma opening in the stomach of a patient by encircling and partitioning a stomach into an upper stomach and a lower stomach.
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30. A method comprising:
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implanting a gastric band having at least one expandable lumen such that the gastric band forms a stoma opening in the stomach of a patient by encircling and partitioning a stomach into an upper stomach and a lower stomach; and
injecting a slurry of particulate hydrogel material into the expandable lumen to at least partially expand the lumen and decrease the stoma opening.
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31. A device comprising:
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an elongate gastric band having a radially expandable lumen that forms a stoma opening in the stomach by encircling and partitioning a stomach into an upper stomach and a lower stomach; and
an injection port in fluid connection with the lumen to receive and deliver a slurry of particulate hydrogel material into the expandable lumen to at least partially expand the lumen and decrease the stoma opening.
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Specification