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Gastric Simulation Anchor and Method

a gastric simulation and anchoring technology, applied in the field of gastric nerve stimulation, can solve the problems of relatively invasive current gastric electrical stimulation procedures, reduce the potential for tissue damage or device dislocation, and avoid stomach wall folding.

Inactive Publication Date: 2010-12-02
INTRAPACE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The device provides effective gastric electrical stimulation with reduced tissue damage and improved anchoring, facilitating food breakdown, movement, and delayed gastric emptying while minimizing device dislodgement and tissue stress.

Problems solved by technology

In general, the currently proposed gastric electrical stimulation procedures are relatively invasive and require accessing the stomach through the abdomen, e.g., in an open or a laparoscopic procedure.

Method used

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  • Gastric Simulation Anchor and Method
  • Gastric Simulation Anchor and Method
  • Gastric Simulation Anchor and Method

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0063]Referring to FIGS. 10-14 and 18-22, a stimulator 10 of a first embodiment is illustrated. The stimulator 10 comprises an anchor 123 and a main body portion 20. The anchor 123 comprises an elongate member 124 having and expandable distal end 125 and a stimulating electrode 126 in the form of a ring of a corrosion resistant metal conductor such as Platinum, Gold, Tantalum, Titanium or suitable alloys thereof, extending around the elongate member 124 just proximal of the expandable end 125. The anchor 123 may be constructed of a radiopaque material. Alternatively, the anchor 123 may include radiopaque markers located on the device so that the location and orientation of the device may be identified, particularly after it has been placed. At least a portion of the anchor 123 is preferably coated with an antibiotic material, such as gentamicin sulphate or a silver / silver salts coating, particularly in locations that it will extend through or come in contact with the stomach wall. A...

second embodiment

[0081]FIGS. 23 and 24 illustrate the stimulator of the present invention. Stimulator 210 comprises a main body portion 220 and an anchor 223. The anchor 223 comprises an elongate proximal member 225. The elongate proximal member 225 includes a tether opening 235 in the proximal end, electrical contacts 228, 238, and a notch 227 for connecting the main body portion 220 to the anchor 223. The distal portion 240 of the anchor 223 comprises two prongs 241, 242. Prongs 241, 242 have expandable distal ends 243, 244 respectively that are constructed in a similar manner as the expandable distal end 125 described above with respect to the first preferred embodiment. A stimulating electrode 245 is located on prong 241 and an electrically opposite second stimulating electrode 246 is located on prong 242. Stimulating electrode 245 and second stimulating electrode 246 are coupled to electrical contacts 228 and 238 respectively by conductors 229 and 239 extending through prongs 241, 242 respectiv...

third embodiment

[0093]FIGS. 27A and 27B illustrate the present invention showing an anchor device for use with a stimulator or other functional device of the present invention. The anchor 263 comprises an elongate body 264, an expandable distal portion 265 having a sharp tip 270, a bipolar electrode pair 266, 267, and a bumper 275 located on a proximal portion of the elongate body 264. The expandable distal portion 265 comprises a flexible disk 271 for engaging the outer stomach wall. The disk 271 has an inner surface 271a that interfaces with the outer surface 100a of stomach wall 100 and may, for example be coated with an antibiotic material, such as gentamicin sulphate or a silver / silver salts coating such as a powder. The bipolar stimulating electrode pair comprises electrode 266 located on the elongate body 264 and a plurality of electrodes 267 electrically opposite from electrode 266, located at the end of the expandable distal portion 265. The electrodes may be separately coupled to electric...

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PUM

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Abstract

A device, system and method for electrically stimulating the stomach is provided. A device system and method for attaching a stimulating device to the stomach wall is also provided.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application is a Divisional of U.S. Ser. No. 11 / 256,264 filed Oct. 21, 2005 (Allowed); which application is a continuation-in-part of U.S. Ser. No. 10 / 290,788 filed Nov. 7, 2002 (now U.S. Pat. No. 7,016,735); which is a divisional of U.S. Ser. No. 09 / 847,884 filed May 1, 2001 (now U.S. Pat. No. 6,535,764) and claims priority of U.S. Provisional Application No. 60 / 621,177 filed Oct. 22, 2004; the full disclosures, all of which are incorporated herein by reference in their entirety.FIELD OF THE INVENTION[0002]This invention relates to an implantable device, system and method for electrically stimulating the stomach.BACKGROUND OF THE INVENTION[0003]Various organs of the gastrointestinal tract such as the stomach, small intestine and colon contain cells that are believed to govern the organs' periodic contractile behavior. In healthy humans, in certain regions of the organs, these cells generate and propagate rhythmic electrical signals...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61N1/05A61N1/36
CPCA61B5/4238A61B5/6882A61B17/3421A61B17/3478A61B2017/00004A61B2017/00017A61B2017/00026A61B2017/00084A61B2017/00477A61B2017/306A61B2017/3488A61F5/0003A61M25/02A61M2025/0233A61M2025/028A61N1/0509A61N1/0517A61N1/36007A61N1/372G01N27/126
Inventor IMRAN, MIR A.COLLIOU, OLIVIER K.LAYMAN, TED W.
Owner INTRAPACE
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