Devices, systems and methods for treatment of eating disorders

• US 20110112383A1
• Filed: 01/04/2011
• Published: 05/12/2011
• Est. Priority Date: 11/08/2005
• Status: Abandoned Application

• Current Assignee: PlenSat, Inc.
• Original Assignee: PlenSat, Inc.
• Inventors: Voss, Houston Fredrick, Sterling, Bernhard B.
• Application Number:
  US12/930,377
• Publication Number:
  US 20110112383A1
• Time in Patent Office: Days
• US Class Current: 600/302
• CPC Class Codes: A61B 5/073 Intestinal transmitters
• CPC Class Codes: A61B 5/4238 stomach
• CPC Class Codes: A61F 5/003 inflatable

Abstract

An ingestible gastric device comprising a formed body that is adapted to expand upon exposure to a hydration medium and then degrade after a first residence time in the stomach cavity, allowing the device to be passed by the patient'"'"'s normal digestive process, and monitoring means for monitoring the gastric device. In some embodiments, the monitoring means comprises a biocompatible RFID tag.

Claims

1. An ingestible gastric device, comprising:

a formed body, said body being adapted to expand upon exposure to a hydration medium; and

monitoring means for monitoring the gastric device.

2. The gastric device of claim 1, wherein said body includes an outer layer adapted to receive a core material therein.

3. The gastric device of claim 1, wherein said monitoring means comprises a passive RFID tag.

4. The gastric device of claim 3, wherein said RFID tag is encapsulated in a material selected from the group consisting of poly(urethanes), poly(siloxanes), poly(methyl methacrylate), poly(vinyl alcohol) for hydrophilicity and strength, poly(ethylene), poly(vinyl pyrrolidone, poly(2-hydroxy ethyl methacrylate), poly(N-vinyl pyrrolidone), poly(methyl methacrylate), poly(vinyl alcohol), poly(acrylic acid), polyacrylamide, poly(ethylene-co-vinyl acetate), poly(ethylene glycol), poly(methacrylic acid), polylactides (PLA), polyglycolides (PGA), poly(lactide-co-glycolides) (PLGA), polyanhydrides, polyorthoesters, and mixtures and combinations thereof.

5. A food grade ingestible gastric device, comprising:

a flexible pouch formed from a food grade biodegradable film, said pouch having a first volume that allows normal ingestion of said gastric device into a subject'"'"'s stomach, said pouch enclosing a sealed cavity having a core material disposed therein,

said biodegradable film comprising a first gel-forming material selected from the group consisting of acacia (gum Arabic), agar, agarose, alginate gels, alginic acid, alginate gums, amylopectin, arabinogalactan, carob bean gum, carrageenan, chondroitin sulfate, eucheuma, fucoidan, furcellaran, gelatin, gellan, guar gum, gum ghatti, gum karaya, hypnea, laminaran, locust bean gum, natural gum, pectins, starches, polypeptides, polyamino acids, tragacanth, xanthan, psyllium, maltodextrin, and mixtures and combinations thereof,

said core material comprising a hydratable material that is adapted to effectuate expansion of said sealed cavity upon hydration of said hydratable material by a gastric fluid, whereby upon a first hydration of said degradable film and, thereby, said hydratable material, by a first gastric fluid, said gastric device expands to a second volume greater than said first volume, said second volume being sufficient to preclude passage of said gastric device into said subject'"'"'s duodenum while still allowing food to pass therethrough,

said gastric device being adapted to commence said first hydration after contact with said first gastric fluid for a period of time in the range of approximately 5-30 min,

said gastric device being adapted to sufficiently degrade in said subject'"'"'s stomach after a first period of time to allow passage of said gastric device into said subject'"'"'s duodenum;

said gastric device further including monitoring means for non-invasively monitoring the gastric device while disposed in a subject'"'"'s gastrointestinal tract.

6. The gastric device of claim 5, wherein said monitoring means comprises a passive RFID tag.

7. The gastric device of claim 6, wherein said RFID tag is encapsulated in a material selected from the group consisting of poly(urethanes), poly(siloxanes), poly(methyl methacrylate), poly(vinyl alcohol) for hydrophilicity and strength, poly(ethylene), poly(vinyl pyrrolidone, poly(2-hydroxy ethyl methacrylate), poly(N-vinyl pyrrolidone), poly(methyl methacrylate), poly(vinyl alcohol), poly(acrylic acid), polyacrylamide, poly(ethylene-co-vinyl acetate), poly(ethylene glycol), poly(methacrylic acid), polylactides (PLA), polyglycolides (PGA), poly(lactide-co-glycolides) (PLGA), polyanhydrides, polyorthoesters, and mixtures and combinations thereof.

8. The gastric device of claim 5, wherein said hydratable material comprises a second gel-forming material selected from the group consisting of acacia (gum Arabic), agar, agarose, alginate gels, alginic acid, alginate gums, amylopectin, arabinogalactan, carob bean gum, carrageenan, chondroitin sulfate, eucheuma, fucoidan, furcellaran, gelatin, gellan, guar gum, gum ghatti, gum karaya, hypnea, laminaran, locust bean gum, natural gum, pectins, starches, polypeptides, polyamino acids, tragacanth, xanthan, psyllium, maltodextrin, and mixtures and combinations thereof.

9. The gastric device of claim 8, wherein said first and second gel-forming materials are selected from the group consisting of acacia (gum Arabic), agar, agarose, alginate gels, alginic acid, alginate gums, amylopectin, arbinoglactan, carob bean gum, carrageenan, chondroitin sulfate, eucheuma, fucoidan, furcellaran, gelatin, gellan, guar gum, gum ghatti, gum karaya, hypnea, karaya, laminaran, locust bean gum, natural gum, pectins, starches, polypeptides, polyamino acids, tragacanth, xanthan, psyllium, maltodextrin, Carbopol®

acidic carboxy polymer, hydrophilic poly urethanes, hydroxypropyl methyl cellulose. HYPOL®

hydrophilic polyurethane polymers, polycarbophil, polymethylvinylether co-maleic anhydride, polyvinylpyrrolidone, polyethylene oxide, poly(hydroxyalkyl methacrylate), polymethacrylic acid, poly(electrolyte complexes), poly(vinyl acetate) cross-linked with hydrolysable bonds, polyvinyl alcohol, water-swellable N-vinyl lactams polysaccharides, hydroxypropyl cellulose, carboxylmethyl celluloses, hydroxyethyl cellulose, methyl cellulose, polyvinyl alcohol, hydroxymethyl methacrylate, Cyanmer®

polyacrylamides, Good-rite®

polyacrylic acid, starch graft copolymers, Aqua-Keeps®

acrylate polymer, ester cross linked polyglucan, polycellulosic acid, polyurea, polyether, poly(acrylic acid), polyacrylamide, or poly(2-hydroxyethyl methacrylate, hydroxymethyl methacrylate, methocel, alpha-polyhydroxy acids, polyglycolide (PGA), poly(L-lactide), poly(D,L-lactide), poly(.epsilon.-caprolactone), poly(trimethylene carbonate), poly(ethylene oxide) (PEO), poly(.beta.-hydroxybutyrate) (PHB), poly(.beta.-hydroxyvalerate) (PHVA), poly(p-dioxanone) (PDS), poly(ortho esters), tyrosine-derived polycarbonates, and mixtures and combinations thereof.

10. The gastric device of claim 9, wherein said second gel-forming material comprises a gas producing material.

11. The gastric device of claim 9, wherein said second gel-forming material comprises a foam.

12. The gastric device of claim 5, wherein said core material comprises a polymeric foam, said polymeric foam comprising synthetic polymers and copolymers selected from the group consisting of Carbopol®

acidic carboxy polymer, hydrophilic poly urethane, hydroxypropyl methyl cellulose, HYPOL®

hydrophilic polyurethane polymers, polycarbophil, polyethylene oxide, poly(hydroxyalkyl methacrylate), poly(electrolyte complexes), poly(vinyl acetate) cross-linked with hydrolysable bonds, water-swellable N-vinyl lactams polysaccharides, carboxylmethyl celluloses, Cyanmer®

polyacrylamides, Good-rite®

polyacrylic acid, starch graft copolymers, Aqua-Keeps®

acrylate polymer, ester cross linked polyglucan, polycellulosic acid, polyurea, polyether, poly(acrylic acid), polyacrylamide, and mixtures and combinations thereof.

13. The gastric device of claim 12, wherein said polymeric foam comprises a polymer selected from the group consisting of alpha-polyhydroxy acids, polyglycolide (PGA), poly(L-lactide), poly(D,L-lactide), poly(.epsilon.-caprolactone), poly(trimethylene carbonate), poly(ethylene oxide) (PEO), poly(.beta.-hydroxybutyrate) (PHB), poly(.beta.-hydroxyvalerate) (PHVA), poly(p-dioxanone) (PDS), poly(ortho esters), tyrosine-derived polycarbonates, and mixtures and combinations thereof.

14. The gastric device of claim 5, wherein said biodegradable film further includes reinforcing fibers.

15. The gastric device of claim 14, wherein said reinforcing fibers comprise soluble reinforcing fibers selected from the group consisting of polysaccharide gums, including, without limitation, carboxymethyl cellulose, methocel, carrageenan, guar gum, algimate gels, pectins, xanthan, gum Arabic (acacia), gum tragacanth, karaya, agar, gellan, alpha-polyhydroxy acids, polyglycolide (PGA), poly(L-lactide), poly(D,L-lactide), poly(.epsilon.-caprolactone), poly(trimethylene carbonate), poly(ethylene oxide) (PEO), poly(.beta.hydroxybutyrate) (PHB), poly(.beta.-hydroxyvalerate) (PHVA), poly(p-dioxanone) (PDS), poly(ortho esters), tyrosine-derived polycarbonates, and mixtures and combinations thereof.

16. The gastric device of claim 14, wherein said reinforcing fibers comprise insoluble reinforcing fibers selected from the group consisting of insoluble polysaccharides, cellulose, phenyl propane molecules polymers, lignin, bast fibers, Kozo, Gampi, grasses, kenaf, bagasse, jute, hemp, flax, and mixtures and combinations thereof.

17. A method for monitoring a gastric device, comprising the steps of:

providing a gastric device having a formed body, said body being adapted to expand upon exposure to a hydration medium, and monitoring means for monitoring the gastric device;

administering said gastric device to a subject; and

externally interrogating said monitoring means to ascertain first data associated with the gastric device.

18. The method of claim 17, wherein said monitoring means comprises a passive RFID tag.

19. The method of claim 18, wherein said RFID tag is encapsulated in a material selected from the group consisting of poly(urethanes), poly(siloxanes), poly(methyl methacrylate), poly(vinyl alcohol) for hydrophilicity and strength, poly(ethylene), poly(vinyl pyrrolidone, poly(2-hydroxy ethyl methacrylate), poly(N-vinyl pyrrolidone), poly(methyl methacrylate), poly(vinyl alcohol), poly(acrylic acid), polyacrylamide, poly(ethylene-co-vinyl acetate), poly(ethylene glycol), poly(methacrylic acid), polylactides (PLA), polyglycolides (PGA), poly(lactide-co-glycolides) (PLGA), polyanhydrides, polyorthoesters, and mixtures and combinations thereof.

20. The method of claim 17, wherein said body includes an outer layer adapted to receive a core material therein.

21. The method of claim 20, wherein said outer layer encases a cavity having a core material disposed therein.

22. The method of claim 21, wherein said outer layer and core material comprise a gel-forming material selected from the group consisting of acacia (gum Arabic), agar, agarose, alginate gels, alginic acid, alginate gums, amylopectin, arbinoglactan, carob bean gum, carrageenan, chondroitin sulfate, eucheuma, fucoidan, furcellaran, gelatin, gellan, guar gum, gum ghatti, gum karaya, hypnea, karaya, laminaran, locust bean gum, natural gum, pectins, starches, polypeptides, polyamino acids, tragacanth, xanthan, psyllium, maltodextrin, Carbopol®

acidic carboxy polymer, hydrophilic poly urethanes, hydroxypropyl methyl cellulose, HYPOL®

hydrophilic polyurethane polymers, polycarbophil, polymethylvinylether co-maleic anhydride, polyvinylpyrrolidone, polyethylene oxide, poly(hydroxyalkyl methacrylate), polymethacrylic acid, poly(electrolyte complexes), poly(vinyl acetate) cross-linked with hydrolysable bonds, polyvinyl alcohol, water-swellable N-vinyl lactams polysaccharides, hydroxypropyl cellulose, carboxylmethyl celluloses, hydroxyethyl cellulose, methyl cellulose, polyvinyl alcohol, hydroxymethyl methacrylate, Cyanmer®

polyacrylamides, Good-rite®

polyacrylic acid, starch graft copolymers, Aqua-Keeps®

acrylate polymer, ester cross linked polyglucan, polycellulosic acid, polyurea, polyether, poly(acrylic acid), polyacrylamide, or poly(2-hydroxyethyl methacrylate, hydroxymethyl methacrylate, methocel, alpha-polyhydroxy acids, polyglycolide (PGA), poly(L-lactide), poly(D,L-lactide), poly(.epsilon.-caprolactone), poly(trimethylene carbonate), poly(ethylene oxide) (PEO), poly(.beta.-hydroxybutyrate) (PHB), poly(.beta.-hydroxyvalerate) (PHVA), poly(p-dioxanone) (PDS), poly(ortho esters), tyrosine-derived polycarbonates, and mixtures and combinations thereof.