GASTRIC BANDING DEVICE AND METHOD

• US 20020198548A1
• Filed: 06/22/2001
• Published: 12/26/2002
• Est. Priority Date: 06/22/2001
• Status: Active Grant

• Current Assignee: Robert, Antoine Jean Henri
• Original Assignee: Robert, Antoine Jean Henri
• Inventors: Robert, Antoine Jean Henri
• Granted Patent: US 6,511,490 B2
• Time in Patent Office: Days
• US Class Current: 606/157
• CPC Class Codes: A61B 17/135 inflatable for measuring blood pressure A61B5/022; inflatable pressure pads A61F5/34
• CPC Class Codes: A61F 5/0056 using injection ports
• CPC Class Codes: A61F 5/0066 Closing devices for gastric bands
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276

Abstract

A gastric banding device for implantation within a person for the treatment of morbid obesity. The gastric banding device includes an inflatable band portion dimensioned to encircle the stomach and an inflation conduit operable for conducting a percutaneously injected inflation fluid into the band portion. The band portion is a toroidal member having a head end with first fastening means thereon and a tail end having second fastening means thereon and an inflatable shell therebetween. The outer surface of the toroidal shell in reinforced with a non-extensible, biocompatible material which serves to limit outward expansion of the shell when an inflation fluid is injected thereinto. The inner, stomach-contacting surface of the shell has a layer of an open-cell elastomeric foam affixed thereto and integral therewith. In operation, when the band is placed in an encircling relationship with the stomach, the first and second fastening means on the ends of the shell are engaged in locking relationship. An inflation fluid is injected into the shell by means of a subcutaneously implanted injection port that is in fluid communication with the inflation conduit. As the shell expands inwardly, it constricts and compartmentalizes the stomach. The rough textured, open-cell, stomach-contacting layer on the interior surface of the shell prevents post-implantation migration of the shell. The open-cell layer obviates the need for suturing the stomach to prevent slippage of the banding device.

Claims

1. A gastric banding device operable for placement in an encircling position around a stomach, thereafter to be adjusted to constrict a portion of the stomach encircled by the gastric banding device, said gastric banding device comprising a rough-textured foam layer on an inner stomach-contacting surface thereof.

2. The gastric banding device of claim 1 wherein said rough-textured foam layer comprises an open cell elastomer.

3. The gastric banding device of claim 2 wherein said elastomer is polyurethane.

4. The gastric banding device of claim 2 wherein said elastomer is silicone.

5. The gastric banding device of claim 1 wherein said gaid gastric banding device includes a body portion adapted to be placed in an encircling relationship around a portion of the stomach, an injection port adapted to be implanted beneath the skin and a fill tube providing fluid communication between said injection port and an inflatable balloon comprising said body portion.