Anti-obesity diverter structure

• US 8,465,447 B2
• Filed: 10/24/2012
• Issued: 06/18/2013
• Est. Priority Date: 05/30/2006
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Krueger, Katie, Martins, Harold M.
• Primary Examiner(s): Tyson, Melanie
• Assistant Examiner(s): DANG, PHONG SON H
• Application Number:
  US13/659,617
• Publication Number:
  US 20130053756A1
• Time in Patent Office: 237 Days
• Field of Search: None
• US Class Current: 604/8
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets
• CPC Class Codes: A61F 5/0076 preventing normal digestion, e.g. Bariatric or gastric sleeves
• CPC Class Codes: A61F 5/0079 Pyloric or esophageal obstructions
• CPC Class Codes: A61M 27/008 pre-shaped, for use in the urethral or ureteral tract

Abstract

A system for inducing weight loss in a patient, includes (a) an elongated element extending from a proximal end to a distal end, the elongated element separating a duodenum into first and second channels, wherein the elongated element is expandable; and (b) a retainer connected to the elongated element and securing the elongated element in a desired orientation within the duodenum. In the desired orientation, all chyme flowing through the duodenum enters the first channel and the second channel is open to a papilla of vater so that digestive fluids from the papilla of vater enter the second channel.

Claims

1. A method for inducing weight loss in a patient, comprising:

inserting an elongated element to a desired position within a duodenum with an outer surface of the elongated element contacting an inner surface of the duodenum to separate the duodenum into first and second longitudinal channels, the elongated element extending from a proximal end to a distal end, the elongated element being positioned so that all chyme flowing through the duodenum enters the first channel and the second channel is open to a papilla of vater so that digestive fluids from the papilla of vater enter the second channel, wherein the elongated element is expandable;

connecting the elongated element to the duodenum using a retainer.

2. The method of claim 1, further comprising:

inserting a funnel into the duodenum so a proximal end thereof is positioned proximally of a pylorus and a distal end thereof is positioned distally of the pylorus, wherein a diameter of the proximal end is greater than a diameter of the pylorus; and

inserting a funnel retainer within the duodenum proximally of the pylorus and connected to the proximal end of the funnel to retain the funnel in a desired position.

3. The method of claim 1, wherein the elongated element is formed of a semi-permeable material having a predetermined rate of permeability.

4. The method of claim 1, wherein the proximal end of the elongated structure is positioned adjacent a pylorus.

5. The method of claim 1, wherein the elongated element is positioned to bisect the duodenum so that the first and second channels have substantially the same volume.

6. A method for inducing weight loss in a patient, comprising:

inserting an elongated element to a desired position within a duodenum with an outer surface of the elongated element contacting an inner surface of the duodenum to separate the duodenum into first and second longitudinal channels, the elongated element extending from a proximal end to a distal end and being positioned so that all chyme flowing through the duodenum enters the first channel and the second channel is open to a papilla of vater so that digestive fluids from the papilla of vater enter the second channel;

inserting a funnel into the duodenum so a proximal end thereof is positioned proximally of a pylorus and a distal end thereof is open to the first longitudinal channel to guide a flow of chyme thereinto, a diameter of the proximal end of the funnel being greater than a diameter of the pylorus.

7. The method of claim 6, further comprising the step of inserting a funnel retainer within the duodenum proximally of the pylorus and connected to the proximal end of the funnel to retain the funnel in a desired position.

8. The method of claim 6, wherein the elongated element is expandable.

9. The method of claim 8, further comprising the step of moving the elongated element to an expanded state.

10. The method of claim 6, further comprising the step of treating the elongated element with an anti-thrombogenic agent.