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Satiation devices and methods

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Satiation devices and methods


A device for inducing weight loss in a patient includes a tubular prosthesis self-expandable from a collapsed position in which the prosthesis has a first diameter to an expanded position in which the prosthesis has a second, larger, diameter. In a method for inducing weight loss, the prosthesis is placed in the collapsed position and inserted into a stomach of a patient. The prosthesis is allowed to self-expand from the collapsed position to the expanded position and into contact with the walls of the stomach, where it induces feelings of satiety and/or inhibits modulation of satiety-controlling factors such as Ghrelin.

Browse recent Barosense, Inc. patents - Redwood City, CA, US
Inventors: Richard S. Stack, Richard A. Glenn, Trevor J. Moody, Fred E. Silverstein, Nathan Every, William S. Eubanks, JR.
USPTO Applicaton #: #20120271217 - Class: 604 8 (USPTO) - 10/25/12 - Class 604 
Surgery > Devices Transferring Fluids From Within One Area Of Body To Another (e.g., Shunts, Etc.)

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The Patent Description & Claims data below is from USPTO Patent Application 20120271217, Satiation devices and methods.

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CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. patent application Ser. No. 13/247,377, filed Sep. 28, 2011, now, which is a continuation of U.S. patent application Ser. No. 12/538,741, filed Aug. 10, 2009, now, which is a continuation of U.S. patent application Ser. No. 10/457,144, filed Jun. 9, 2003, now abandoned, which is a divisional of U.S. patent application Ser. No. 09/940,110, filed Aug. 27, 2001, now U.S. Pat. No. 6,675,809.

FIELD OF THE INVENTION

The present invention relates generally to the field of devices and methods for achieving weight loss in humans, and, specifically to the use of devices implantable within the human stomach for controlling feelings of hunger.

BACKGROUND OF THE INVENTION

Various medical approaches are used for controlling obesity. These approaches include diet, medication, and surgical procedures. One of the more successful surgical procedures is the vertical banded gastroplexy or the proximal gastric pouch with a Roux-en-Y anastomosis. However, known complications are present with each of these procedures and more successful options are desired.

Other alternatives include implantation of gastric balloons that prevent overeating by occupying volume within the stomach. Unfortunately, gastric balloons can migrate down the GI tract, causing obstruction and thus necessitating removal.

It is therefore desirable to provide a successful and minimally-invasive alternative to existing approaches for controlling obesity.

SUMMARY

OF THE INVENTION

A satiation device utilizing principles of the present invention includes a tube having a collapsed position proportioned to permit introduction of the tube into a portion of the stomach. Once positioned within the body, the tube self-expands into contact with the interior of the stomach. During use, food ingested into the stomach passes through the tube. In an alternate embodiment, the tube may be formed of a material that prevents food within the tube from contacting the surrounding walls of the stomach. In one embodiment, the tube may be positionable within the antrum of the stomach. In other alternative embodiments, the device may include a fundal basket which mayor may not be attached to a proximal end of an antral tube, and/or a bowel tube which mayor may not be attached to a distal end of an antral tube.

In other alternative embodiments, a small pouch is attached to a cage structure such as a fundal basket and positioned at the proximal end of the stomach. In other alternative embodiments, this pouch may he provided without a cage structure and is independently secured against the proximal stomach wall by endoscopy guided sutures or other means.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic illustration of a human stomach and a portion of the small intestine.

FIG. 2 is a plan view of a satiation device utilizing principles of the present invention.

FIG. 3 is a plan view of a satiation device similar to that of FIG. 2, but including a drug delivery reservoir.

FIG. 4A is a schematic illustration of a stomach, pylorus, and bowel, showing introduction of the device of FIG. 2 or 3 into the antrum.

FIG. 4B is a schematic illustration similar to FIG. 4A, showing the device in position.

FIG. 4C is a schematic illustration similar to FIG. 4B, showing withdrawal of the device into a sheath for subsequent removal from the body.

FIG. 5 is a schematic illustration similar to the illustration of FIG. 4B, showing the position of an alternative device having an antral tube and a bowel tube.

FIG. 6 is a schematic illustration similar to the illustration of FIG. 4B, showing the position of an alternative device having an antral tube that does not cross the pyloric sphincter.

FIG. 7 is a plan view of an antral tube similar to the antral tube of FIG. 6, with retaining structures formed into the external surface.

FIG. 8 is a plan view of an antral tube similar to the antral tube of FIG. 6, with retaining structures formed at the proximal and distal ends.

FIGS. 9A and 9B are plan views of antral tubes similar to the antral tube of FIG. 6, with variations of retaining ridges formed on their external surfaces.



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stats Patent Info
Application #
US 20120271217 A1
Publish Date
10/25/2012
Document #
13535254
File Date
06/27/2012
USPTO Class
604/8
Other USPTO Classes
International Class
61F2/04
Drawings
19



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