Bioerodible self-deployable intragastric implants
First Claim
Patent Images
1. A swallowable, self-expanding, temporary gastric implant comprising:
- a.) at least one expandable envelope, comprising at least one bioerodible material, that is generally toric-shaped upon expansion, the envelope having an interior and an exterior, having a selected diameter that, upon such expansion, contacts the walls of the stomach sufficiently to produce a sensation of fullness in that stomach, and the envelope being further operable to maintain such expansion for a selected period of time,b.) a gas-producing composition operable to produce carbon dioxide gas for the expansion of the at least one expandable envelope and further operable to produce the carbon dioxide after being swallowed by a human and the expansion being effected by the implant being present in the stomach, andc.) an enclosure comprising a bioerodible material, enclosing the envelope and gas-producing composition prior to such expansion, having a size suitable for swallowing by a human being.
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Abstract
Described herein are bioerodible, biodegradable, or digestible self-deploying intragastric implants that may be swallowed. Once swallowed, the implants undergo self-expansion in the stomach and apply a suitable pressure against the stomach wall to provide a feeling of satiety to the individual. The implants then dissolve or are disassembled perhaps using gastric liquids and pass out of the stomach. Methods of using the devices, perhaps for an individual participating in a dietary control regimen, are described.
191 Citations
16 Claims
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1. A swallowable, self-expanding, temporary gastric implant comprising:
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a.) at least one expandable envelope, comprising at least one bioerodible material, that is generally toric-shaped upon expansion, the envelope having an interior and an exterior, having a selected diameter that, upon such expansion, contacts the walls of the stomach sufficiently to produce a sensation of fullness in that stomach, and the envelope being further operable to maintain such expansion for a selected period of time, b.) a gas-producing composition operable to produce carbon dioxide gas for the expansion of the at least one expandable envelope and further operable to produce the carbon dioxide after being swallowed by a human and the expansion being effected by the implant being present in the stomach, and c.) an enclosure comprising a bioerodible material, enclosing the envelope and gas-producing composition prior to such expansion, having a size suitable for swallowing by a human being. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification