Restrictive and/or obstructive implant for inducing weight loss

• US 7,717,843 B2
• Filed: 04/26/2005
• Issued: 05/18/2010
• Est. Priority Date: 04/26/2004
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Barosense, Inc. (Boston Scientific Corporation)
• Inventors: Eubanks, William S. Jr., Lunsford, John, Athas, William L., Balbierz, Daniel J., Bladel, Kevin van
• Primary Examiner(s): Marmor, II; Charles A
• Assistant Examiner(s): MATTHEWS, CHRISTINE HOPKINS
• Application Number:
  US11/114,400
• Publication Number:
  US 20050261712A1
• Time in Patent Office: 1,848 Days
• Field of Search: 600 29- 31, 600/37, 606/153, 606/192, 623/23.64, 623/23.67
• US Class Current: 600/37
• CPC Class Codes: A61B 17/12009 Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
• CPC Class Codes: A61B 2017/12018 Elastic band ligators
• CPC Class Codes: A61F 5/003 inflatable
• CPC Class Codes: A61F 5/0036 Intragastrical devices
• CPC Class Codes: A61F 5/0086 using clamps, folding means or the like

Abstract

Described herein is a system for inducing weight loss in a patient, which comprises an extragastric space occupier positionable in contact with an exterior surface of a stomach wall to form an inward protrusion of wall into the stomach, and a retention device positionable in contact with the wall to retain the inward protrusion and to thereby capture the extragastric space occupier within the protrusion.

Claims

1. A method of assisting weight loss in a patient, comprising the steps of:

positioning an extragastric space occupier in contact with an exterior surface of a patient'"'"'s stomach wall, and expanding the space occupier to form an inward protrusion of wall into the stomach, said protrusion filling a portion of the stomach; and

placing a retention device in contact with an interior surface of the stomach wall to retain the inward protrusion and to thereby capture the extragastric space occupier within the protrusion, by drawing exterior portions of the wall into contact with one another and attaching the retention device to the wall to retain the protrusion, wherein the retention device comprises at least one suture or staple and occupies a volume within the stomach that is smaller than the volume of the expanded space occupier.

2. A method of assisting weight loss in a patient, comprising the steps of:

positioning an extragastric space occupier in contact with an exterior surface of a patient'"'"'s stomach wall, and expanding the space occupier to form an inward protrusion of wall into the stomach, said protrusion filling a portion of the stomach; and

placing a retention device in contact with an interior surface of the stomach wall to retain the inward protrusion and to thereby capture the extragastric space occupier within the protrusion, by drawing exterior portions of the wall into contact with one another and attaching the retention device to retain the protrusion, the retention device occupying a volume within the stomach that is smaller than the volume of the expanded space occupier,

causing adhesions to form between the exterior portions of the wall, and

removing the retention device from the stomach, wherein the adhesions retain the space occupier within the protrusion following removal of the retention device.

3. A method of assisting weight loss in a patient, comprising the steps of:

positioning an extragastric space occupier in contact with an exterior surface of a patient'"'"'s stomach wall, by positioning the space occupier in contact with an exterior surface of a wall of the fundus of the stomach, and expanding the space occupier to cause the protrusion to extend towards a gastroesophageal junction region of the stomach; and

placing a retention device in contact with an interior surface of the stomach wall to retain the inward protrusion and to thereby capture the extragastric space occupier within the protrusion, the retention device occupying a volume within the stomach that is smaller than the volume of the expanded space occupier.

4. A method of assisting weight loss in a patient, comprising the steps of:

positioning an extragastric space occupier in contact with an exterior surface of a patient'"'"'s stomach wall, by positioning the space occupier into contact with an exterior surface of a wall of the antrum of the stomach, and expanding the space occupier to cause the protrusion to extend into the antrum of the stomach, and

placing a retention device in contact with an interior surface of the stomach wall to retain the inward protrusion and to thereby capture the extragastric space occupier within the protrusion, the retention device occupying a volume within the stomach that is smaller than the volume of the expanded space occupier.