Intragastric device for treating obesity
First Claim
1. A stomach occupying device comprising:
- a porous mesh structure configured to reside in a stomach and having a pre-deployment shape with a first volume and a post-deployment shape with a second volume, wherein said first volume is less than said second volume, said porous mesh structure further comprising (1) an upper portion having a plurality of first openings, (2) a middle portion having a second plurality of openings, and (3) a lower portion having a plurality of third openings, and wherein in said post-deployment state said porous mesh structure has a spherical or ovular shape; and
a sleeve having a length, an enclosed body along said length, an open top end, and an open bottom end, wherein said top end of said sleeve is physically attached to said lower portion;
wherein said second plurality of openings are larger than either of said first plurality of openings and said third plurality of openings, andwherein the second plurality of openings have valves configured to direct ingested food into the porous mesh structure, and the first and third plurality of openings are configured to direct the ingested food out of the porous mesh structure.
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Accused Products
Abstract
The present invention is directed toward an intragastric device used to treat obesity that includes a wire mesh structure capable of changing from a compressed pre-deployment shape to an expanded post-deployment shape with a greatly increased volume. The post-deployment shape contains a light weight at the top and a heavier weight at the bottom to ensure proper positioning within the stomach. In the post-deployment shape, the device contains larger spaces in the upper portion and smaller spaces in the lower portion to sequester food and delay gastric emptying. Alternatively, the device can be enveloped by a membrane containing larger holes at the top and smaller holes at the bottom to sequester food and delay gastric emptying. The device has a dynamic weight where the weight of the device in the pre-feeding stage is less than the weight of the device in feeding or post-feeding stage.
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Citations
9 Claims
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1. A stomach occupying device comprising:
a porous mesh structure configured to reside in a stomach and having a pre-deployment shape with a first volume and a post-deployment shape with a second volume, wherein said first volume is less than said second volume, said porous mesh structure further comprising (1) an upper portion having a plurality of first openings, (2) a middle portion having a second plurality of openings, and (3) a lower portion having a plurality of third openings, and wherein in said post-deployment state said porous mesh structure has a spherical or ovular shape; and a sleeve having a length, an enclosed body along said length, an open top end, and an open bottom end, wherein said top end of said sleeve is physically attached to said lower portion; wherein said second plurality of openings are larger than either of said first plurality of openings and said third plurality of openings, and wherein the second plurality of openings have valves configured to direct ingested food into the porous mesh structure, and the first and third plurality of openings are configured to direct the ingested food out of the porous mesh structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
Specification