Intragastric Device for Treating Obesity
First Claim
1. An intragastric device having a top and a bottom comprising:
- a structure 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;
wherein, in said post-deployment shape, said device comprises at least one first opening proximate to the top of said device, each first opening defined by an area where a sum of the areas of the first openings is equal to a first area;
wherein, in said post-deployment shape, said device comprises at least one second opening proximate to the bottom of said device, each second opening defined by an area where a sum of the areas of the second openings is equal to a second area; and
wherein said first area is equal or larger than said second area.
1 Assignment
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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
20 Claims
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1. An intragastric device having a top and a bottom comprising:
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a structure 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; wherein, in said post-deployment shape, said device comprises at least one first opening proximate to the top of said device, each first opening defined by an area where a sum of the areas of the first openings is equal to a first area; wherein, in said post-deployment shape, said device comprises at least one second opening proximate to the bottom of said device, each second opening defined by an area where a sum of the areas of the second openings is equal to a second area; and wherein said first area is equal or larger than said second area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An intragastric device having a top and a bottom comprising:
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a structure 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; wherein, in said post-deployment shape, said device comprises a plurality of first openings, each of said plurality of first openings defined by an area where a sum of the areas of the plurality of first openings is equal to a first area; wherein, in said post-deployment shape, said device comprises a plurality of second openings, each of said plurality of second openings defined by an area where a sum of the areas of the plurality of second openings is equal to a second area; wherein said first area is equal to larger than said second area; wherein said first area is closer to the top of device relative to the second area; and wherein said structure is enveloped by a membrane that does not cover said first area or said second area.
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18. An intragastric device having a top and a bottom comprising:
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a structure 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; wherein, in said post-deployment shape, said device comprises at least one first opening to allow for entry of food into the device and at least one second opening to allow for exit of food from the device, wherein the device has a first weight when a patient is in a pre-feeding stage and a second weight when a patient is in a feeding or a post-feeding stage, and wherein the second weight is greater than the first weight. - View Dependent Claims (19, 20)
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Specification