Endoscopic gastric bypass
First Claim
Patent Images
1. A gastrointestinal implant for insertion into a patient for bypassing a stomach of the patient, the implant comprising:
- a tube with a tube wall adapted to be anchored within the gastrointestinal tract and extending through the stomach; and
one or more one-way lateral valves in the tube for permitting gastric fluid to flow into a lumen of the tube,wherein the one-way lateral valves have valve walls and are configured and oriented at non-zero angles to the tube wall, the valve walls and tube wall having separate non-overlapping annular cross-sections.
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Accused Products
Abstract
An endoscopic device separates ingested food from gastric fluids or gastric fluids and digestive enzymes, to treat obesity. In a particular embodiment a gastric bypass stent comprises a tubular member and two or more stent members defining a lumen. The tubular member has a substantially liquid impervious coating or covering and one or more lateral openings to permit one-way liquid flow.
134 Citations
22 Claims
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1. A gastrointestinal implant for insertion into a patient for bypassing a stomach of the patient, the implant comprising:
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a tube with a tube wall adapted to be anchored within the gastrointestinal tract and extending through the stomach; and one or more one-way lateral valves in the tube for permitting gastric fluid to flow into a lumen of the tube, wherein the one-way lateral valves have valve walls and are configured and oriented at non-zero angles to the tube wall, the valve walls and tube wall having separate non-overlapping annular cross-sections. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A gastrointestinal implant for insertion into a patient for bypassing a stomach of the patient, the implant comprising:
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a tube adapted to be anchored within the gastrointestinal tract and extending through the stomach; and one or more lateral valves in the tube for permitting-gastric fluid to flow into a lumen of the tube; wherein the lateral valves of the tube have tubes extending distally to a point at or distal to a distal end of the tube. - View Dependent Claims (8)
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9. A gastrointestinal implant for insertion into a patient for bypassing a stomach of the patient, the device comprising:
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a tube defining a lumen, the tube having a proximal end and a distal end; a first stent member positioned at the proximal end of the tube, the first stent member adapted to engage the patient'"'"'s gastroesophageal region; and a second stent member positioned at the distal end of the tube, the second stent member adapted to engage the duodenum of the patient, wherein the tube includes a first tubular portion and a valve with a second tubular portion having a full annular section lying within an annular cross section of the first tubular portion and extending along an axis of the first tubular portion, the axis extending between the proximal and distal tube ends, and wherein the first tubular portion has one or more lateral valves. - View Dependent Claims (10, 11, 12, 13)
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14. A gastrointestinal implant for insertion into a patient, the implant comprising:
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a tube having a continuous wall defining a lumen, the tube having a first end and a second end; a first stent member disposed at the first end of the tube; a second stent member disposed at the second end of the tube; and one or more lateral valves in the continuous wall of the tube configured to permit gastric fluid to flow into the lumen of the tube; wherein the first stent member is adapted to engage the patient'"'"'s gastroesophageal region; wherein the second stent member is adapted to engage the patient'"'"'s duodenum; and wherein the first end of the tube has a one-way valve that extends through the first stent member forming a separate annular structure lying within the tube. - View Dependent Claims (15, 16, 17, 18)
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19. A gastrointestinal implant for insertion into a patient, the implant comprising:
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a tube with first and second ends and an annular surface and a lumen defined therewithin; the tube having a one-way valve at the first end thereof to permit entry of food and/or liquids into the lumen; the annular surface having openings, separate from the one-way valve, to permit gastric fluid to enter the lumen; the one-way valve having a portion of progressively decreasing internal diameter and a tubular extension that extends lengthwise along the lumen. - View Dependent Claims (20, 21, 22)
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Specification