Gastrointestinal Prostheses
First Claim
1. A gastrointestinal prosthesis comprisinga compressible proximal member for restraining and dampening compressive forces exerted by a gastric wall;
- a distal member connected to said proximal member, and wherein the geometrical shape of a segment of said proximal member conforms to the geometrical shape of a portion of a lumen enclosed within said gastric wall, which is the gastric lumen, and wherein a space internal to said proximal member is opened to said gastric lumen, and wherein the volume of said space is not smaller than a predefined threshold.
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Abstract
Gastrointestinal prosthesis for restraining the rate of the gastric digestion consists of a compressible proximal member connected by a string to a distal member, to be introduced into the intestine. The proximal member has an internal space, which is opened to the gastric lumen and may include passageways for the gastric content as well as open grooves or niches disposed on its external wall. The volume of a proximal member compressed by the gastric wall cannot get smaller than a lower threshold. Anchoring the gastrointestinal prosthesis at its desired location is accomplished by means of the proximal member the geometrical shape of which conforms the geometrical shape of a portion of the gastric lumen; as well as by means of the geometrical shape of the distal member which conforms the geometrical shape of a segment of the duodenum and/or a segment of the intestine.
97 Citations
17 Claims
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1. A gastrointestinal prosthesis comprising
a compressible proximal member for restraining and dampening compressive forces exerted by a gastric wall; a distal member connected to said proximal member, and wherein the geometrical shape of a segment of said proximal member conforms to the geometrical shape of a portion of a lumen enclosed within said gastric wall, which is the gastric lumen, and wherein a space internal to said proximal member is opened to said gastric lumen, and wherein the volume of said space is not smaller than a predefined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- 16. A method for restraining the rate of a gastric digestion of a human by enclosing a space internal to a portion of a gastric lumen of said human within a compressible body, wherein the volume of said space is not smaller than a predefined threshold while said body is compressed by a gastric wall of said human, and wherein said space is opened to a portion of said gastric lumen, which is external to said space, and wherein the geometrical shape of a segment of the surface of said body conforms the geometrical shape of a portion of said gastric lumen while said body is expanded.
Specification