Methods, devices, and systems for obesity treatment
First Claim
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1. A gastric balloon structure for deploying in a gastric cavity of a patient, comprising:
- at least two isolated non-concentric inflatable chambers, whereineach chamber of the at least two isolated non-concentric inflatable chambers has a respective inflated state volume such that deflation of any single chamber of the at least two isolated non-concentric inflatable chambers leaves the inflated state volume of the remaining chambers of the at least two isolated non-concentric inflatable chambers unaffected, andthe walls of each chamber are comprised of two layers of silicone bonded to one another including an inner layer and outer layer, whereinthe inner layer has a greater strength than the outer layer, andthe outer layer has a greater acid resistance than the inner layer;
a valve system for introducing a fluid into the at least two isolated non-concentric inflatable chambers and for retaining, upon inflation, the fluid in the at least two isolated non-concentric inflatable chambers; and
a flexible member spanning a gap between and fixedly attached to both a first chamber of the at least two isolated non-concentric inflatable chambers and a second chamber of the at least two isolated non-concentric inflatable chambers, said flexible member being in fluid communication with the valve system and carrying inflation tubes that are in fluid communication with the at least two isolated non-concentric inflatable chambers;
wherein the gastric balloon structure, in its inflated state, assumes a curved shape conforming to a natural three-dimensional kidney shape of the gastric cavity, such that the flexible member flexibly conforms, upon at least partially filling the at least two isolated non-concentric inflatable chambers, the gastric balloon structure to the natural three-dimensional kidney shape of the gastric cavity;
and wherein, after inflation, the gastric balloon structure is configured to float freely without tethering in the gastric cavity.
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Abstract
In one aspect, a gastric balloon structure includes multiple isolated non-concentric inflatable chambers and a valve system for introducing fluid into each chamber, where the structure assumes, upon inflating, a curved shape conforming to a natural three-dimensional kidney shape of the gastric cavity.
133 Citations
11 Claims
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1. A gastric balloon structure for deploying in a gastric cavity of a patient, comprising:
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at least two isolated non-concentric inflatable chambers, wherein each chamber of the at least two isolated non-concentric inflatable chambers has a respective inflated state volume such that deflation of any single chamber of the at least two isolated non-concentric inflatable chambers leaves the inflated state volume of the remaining chambers of the at least two isolated non-concentric inflatable chambers unaffected, and the walls of each chamber are comprised of two layers of silicone bonded to one another including an inner layer and outer layer, wherein the inner layer has a greater strength than the outer layer, and the outer layer has a greater acid resistance than the inner layer; a valve system for introducing a fluid into the at least two isolated non-concentric inflatable chambers and for retaining, upon inflation, the fluid in the at least two isolated non-concentric inflatable chambers; and a flexible member spanning a gap between and fixedly attached to both a first chamber of the at least two isolated non-concentric inflatable chambers and a second chamber of the at least two isolated non-concentric inflatable chambers, said flexible member being in fluid communication with the valve system and carrying inflation tubes that are in fluid communication with the at least two isolated non-concentric inflatable chambers; wherein the gastric balloon structure, in its inflated state, assumes a curved shape conforming to a natural three-dimensional kidney shape of the gastric cavity, such that the flexible member flexibly conforms, upon at least partially filling the at least two isolated non-concentric inflatable chambers, the gastric balloon structure to the natural three-dimensional kidney shape of the gastric cavity; and wherein, after inflation, the gastric balloon structure is configured to float freely without tethering in the gastric cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A gastric balloon structure for deploying in a gastric cavity of a patient, comprising:
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at least two isolated non-concentric inflatable chambers, wherein each chamber of the at least two isolated non-concentric inflatable chambers has a respective inflated state volume such that deflation of any single chamber of the at least two isolated non-concentric inflatable chambers leaves the inflated state volume of the remaining chambers of the at least two isolated non-concentric inflatable chambers unaffected, and the walls of each chamber comprise two layers of silicone bonded to one another including an inner layer and outer layer, wherein the inner layer has a greater strength than the outer layer, and the outer layer has a greater acid resistance than the inner layer; a valve system for introducing a fluid into the at least two isolated non-concentric inflatable chambers and for retaining, upon inflation, the fluid in the at least two isolated non-concentric inflatable chambers; and a flexible member spanning a gap between and fixedly attached to both a first chamber of the at least two isolated non-concentric inflatable chambers and a second chamber of the at least two isolated non-concentric inflatable chambers, wherein the flexible member encloses an inflation lumen for introducing the fluid into the at least two isolated non-concentric inflatable chambers via the valve system; wherein the gastric balloon structure, in its inflated state, assumes a curved shape conforming to a natural three-dimensional kidney shape of the gastric cavity, such that the flexible member flexibly conforms, upon at least partially filling the at least two isolated non-concentric inflatable chambers, the gastric balloon structure to the natural three-dimensional kidney shape of the gastric cavity; and wherein, after inflation, the gastric balloon structure is configured to float freely without tethering in the gastric cavity.
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Specification