Stomach prosthesis
First Claim
1. An implantable prosthetic digestive organ for moving materials through a portion of the digestive tract comprising:
- a prosthetic pyloric valve configured to structurally replace at least a portion of a pyloric valve comprising;
an outer support structure;
at least one expandable member located within the outer support structure;
a flexible inner member forming a conduit for the movement of material therethrough, the flexible inner member located within the outer support structure, wherein the at least one expandable member is located between the inner member and the outer support structure.
1 Assignment
0 Petitions
Accused Products
Abstract
An implantable stomach prosthesis is provided for surgically replacing or augmenting all or part of the antrum and/or pylorus of a stomach. The prosthesis controls the passage of food from the stomach to the small intestine. The prosthesis may be configured to churn ingested material and release it from the stomach through a prosthetic pyloric valve. At least one expandable member is arranged to be expanded to control the passage of food and/or to mimic the churning action of a patient'"'"'s stomach. The prosthesis includes an outer support structure, a flexible inner member forming a conduit for the movement of material, and at least one expandable member located between the outer support structure and inner member. An implantable pump system is provided for inflating and deflating the expandable member(s).
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Citations
33 Claims
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1. An implantable prosthetic digestive organ for moving materials through a portion of the digestive tract comprising:
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a prosthetic pyloric valve configured to structurally replace at least a portion of a pyloric valve comprising; an outer support structure; at least one expandable member located within the outer support structure; a flexible inner member forming a conduit for the movement of material therethrough, the flexible inner member located within the outer support structure, wherein the at least one expandable member is located between the inner member and the outer support structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An implantable prosthetic stomach comprising:
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an outer support structure; at least one expandable member located within the outer support structure; a flexible inner member forming a cavity for the churning of material therein, the flexible inner member located within the outer support structure, wherein the at least one expandable member is located between the inner member and the outer support structure. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An implantable prosthetic digestive organ for moving materials through a portion of the digestive tract comprising:
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a prosthetic pyloric valve means for controlling the passage of material between a stomach and small intestine of a recipient; an outer support means for supporting the prosthetic organ; expandable means for controlling the tightening and relaxing of the valve means; and a flexible inner member means for providing a conduit for the movement of material therethrough, the flexible inner member means located within the outer support means, wherein the expandable means is located between the inner member means and the outer support means. - View Dependent Claims (19, 20, 21, 22, 23)
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24. An implantable prosthetic stomach comprising:
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antrum means for churning and moving material within the prosthetic stomach, the antrum means comprising; outer support means for supporting the prosthetic stomach; expandable means for expanding and contracting to churn and move food inner means for providing a cavity for the churning of material therein, inner means located within the outer support means, wherein the expandable means is located between the inner means and the outer support means. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A method for treating obesity comprising the steps of:
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providing a prosthetic pyloric valve; attaching the prosthetic pyloric valve between a stomach and a location in the small intestine; tightening the prosthetic pyloric valve to retain material in the stomach for a desired duration; and relaxing the prosthetic valve according to a desired protocol to permit the movement of material from the stomach to the small intestine. - View Dependent Claims (32)
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33. A method for controlling the movement of material from a stomach to a small intestine comprising the steps of:
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providing a prosthetic pyloric valve comprising; an outer support structure; at least one expandable member located within the outer support structure; and a flexible inner member forming a conduit for the movement of material therethrough, the flexible inner member located within the outer support structure, wherein the at least one expandable member is located between the inner member and the outer support structure, attaching the prosthetic pyloric valve between the stomach and a location in the small intestine; controlling movement of material from a stomach to a small intestine with the valve by inflating at least in part, the at least one expandable member or deflating at least in part, the at least one expandable member.
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Specification