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US 7,211,114 B2Granted
Endoscopic gastric bypass
AssigneeThe Trustees of Columbia University in the City of New York
InventorsMarc Bessler, John D. Allendorf
Life of this patent
Estimating the term…
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.
Claims31
A device for insertion into a patient for bypassing a stomach of the patient, the device comprising:
- a tubular member having a proximal end, a distal end, and an outer wall, the tubular member defining a lumen extending therethrough;
- a first stent member positioned at the tubular member proximal end;
- and
- a second stent member positioned at the tubular member distal end,
- wherein the first stent member and the second stent member are configured such that, upon insertion of the device into patient, the first stent member can be disposed adjacent to and engage the gastro-esophageal junction of the patient and the second stent member can be disposed adjacent to and engage the duodenum of the patient;
- and
- further wherein the tubular member, the first stent member, and the second stent member are configured such that, after insertion and during operation of the device, liquids and solids entering the device via the first stent member can flow through the lumen and exit from the device via the second stent member without the outer wall of the tubular member contacting a wall of the patient's stomach, thereby bypassing the stomach.
4 more elements
A device for insertion into a patient for bypassing the stomach of the patient, the device comprising:
- a tubular member having a proximal end, a distal end, and an outer wall and defining a lumen extending therethrough;
- a first stent member positioned at the tubular member proximal end;
- and
- a second stent member positioned at the tubular member distal end,
- wherein the tubular member, the first stent member, and the second stent member are configured such that, after insertion of the device into a patient and during operation of the device, the first stent member can engage the gastro-esophageal junction of the patent, the second stent member can engage the duodenum of the patient, and liquids and solids entering the device via the first stent member can flow through the lumen and exit from the device via the second stent member without the outer wall of the tubular member functionally engaging a wall of the patient's stomach, thereby bypassing the patient's stomach.
2 more elements
A device for insertion into a patient for bypassing the stomach of the patient, the device comprising:
- a tubular member having a proximal end, a distal end, and an outer wall, the tubular member defining a lumen extending therethrough;
- a first stent member positioned at the tubular member proximal end;
- and
- a second stent member positioned at the tubular member distal end,
- wherein the tubular member, the first stent member, and the second stent member are configured such that, after insertion of the device into a stomach of a patient and during operation of the device, the tubular member can extend from adjacent the gastro-esophageal junction of the patient to at least adjacent the duodenum of the patient without the outer wall of the tubular member contacting a wall of the patient's stomach, and such that liquids and solids entering the device via the first stent member can flow through the lumen and exit from the device via the second stent member, thereby bypassing the patient's stomach.
2 more elements
A device for insertion into a patient for bypassing the stomach of the patient, the device comprising:
- a tubular member having a proximal end, and an outer wall and defining a lumen extending therethrough, the tubular member comprising a substantially liquid impervious coating or covering;
- a first stent member positioned at the tubular member proximal end;
- and
- a second stem member positioned at the tubular member distal end,
- wherein me tubular member, the first stent member, and the second stent member are configured such that, after insertion of the device into a patient, the first stent member can engage the gastro-esophageal junction of the patient, the second stent member can engage the duodenum of the patient, and wherein liquids and solids entering the device via the first stem member can flow through the lumen and exit from the device via the second stent member without the outer wall of the tubular member functionally engaging a wall of the patient's stomach, thereby bypassing Patient's the stomach.
2 more elements
Dependencies are inferred from the claim text.