Gastrointestinal anchor with optimal surface area
First Claim
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1. An anchor for attaching to a gastrointestinal tract wall comprising:
- a first portion configured to interface with the gastrointestinal tract wall; and
a second portion coupled to the first portion wherein the first portion has a surface area interfacing with the gastrointestinal tract wall and wherein the second portion has a weight creating a load borne by the first portion interfacing the gastrointestinal tract wall wherein the ratio of the weight to surface area is less than about 5g/mm2.
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Abstract
A device, system and method for anchoring a device to a stomach is provided. The device may be, among other things, a sensor for sensing various parameters of the stomach or stomach environment, or may be a therapeutic delivery device. The anchor of the device is constructed to resist pull out forces. An anchor has an optimal weight to surface area ratio.
203 Citations
23 Claims
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1. An anchor for attaching to a gastrointestinal tract wall comprising:
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a first portion configured to interface with the gastrointestinal tract wall; and
a second portion coupled to the first portion wherein the first portion has a surface area interfacing with the gastrointestinal tract wall and wherein the second portion has a weight creating a load borne by the first portion interfacing the gastrointestinal tract wall wherein the ratio of the weight to surface area is less than about 5g/mm2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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- 15. A anchor for attaching to a stomach wall comprising a first means for interfacing with the stomach wall to bear a load from a second means and a second means for treating or diagnosing a portion of a gastrointestinal tract wherein the first means has a surface area and the second means has a weight, and wherein the weight has a ratio to the surface area of less than about 5 g/mm2.
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18. A method for attaching a device to a gastrointestinal tract wall comprising:
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providing an anchor comprising a first expandable portion, an elongate portion and a device portion;
positioning the elongate portion through a gastrointestinal tract wall wherein the first portion is expanded to interface and engage a gastrointestinal tract wall on a first side of the gastrointestinal tract wall and so that the device portion is positioned on an opposite side of the gastrointestinal tract wall from the first portion; and
wherein the expandable portion has an interfacing portion with a surface area interfacing the gastrointestinal tract wall and the device portion and elongate member have a weight creating a load between the stomach wall and the interfacing portion wherein the weight has a ratio to the surface area of less than about 5 g/mm2. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification