Intragastric device
Devices and methods for treating obesity are provided. More particularly, intragastric devices and methods of fabricating, deploying, inflating, monitoring, and retrieving the same are provided.
1. An intragastric balloon system comprising:
an intragastric balloon comprising:
a polymeric wall with an inner surface defining a balloon lumen;
a self-sealing valve system attached to the polymeric wall's inner surface,
an erodible seam directly or indirectly coupled to the polymeric wall that is configured to degrade based on an internal environment of the intragastric balloon inside the balloon lumen instead of an external environment outside the intragastric balloon;
an outer container releasably containing the intragastric balloon in a folded and compacted state, the outer container comprising:
an outer container wall formed of a material that is erodible in an in vivo gastric environment;
an outer container interior; and
an opening in the outer container wall, the opening in the outer container wall providing fluid communication between the outer container interior and the in vivo gastric environment; wherein
the outer container is sized and shaped so as to be swallowable by normal peristaltic motion;
a swallowable inflation catheter comprising:
catheter tubing with an open proximal end and open distal end joined by a catheter lumen;
a needle assembly attached to the catheter tubing distal end
a catheter connector attached to the catheter tubing proximal end; and
a tensile cord extending through the catheter lumen and attached to each of the needle assembly and the catheter connector.
2. The system of claim 1 , further comprising:
an inflation source container comprising:
a volume of an inflation fluid, wherein the inflation fluid comprises at least water;
an inflation valve in fluid communication with the volume of the inflation fluid; wherein
the inflation valve is sized and shaped to reversibly connect to the catheter connector; and wherein
the inflation valve includes opened and closed configurations and an actuation handle.
3. The system of claim 1 , wherein the polymeric wall comprises one or more layers.
4. The system of claim 3 , wherein the polymeric wall comprises a barrier material comprising nylon and polyethylene.
5. The system of claim 3 , wherein the polymeric wall comprises a barrier material comprising nylon, polyvinylidene chloride and polyethylene.
6. The system of claim 1 , wherein the inflation catheter is of a variable stiffness.
7. The system of claim 1 , wherein the inflation catheter tubing is from 1 French to 6 French in diameter.
8. The system of claim 1 , wherein the erodible seam is configured to degrade based on a pH or a humidity condition in the internal environment of the intragastric balloon inside the balloon lumen.
9. The system of claim 1 , wherein the balloon lumen is configured to be filled with water.
10. The system of claim 9 , wherein the erodible seam is configured to degrade based on the water in the internal environment of the intragastric balloon inside the balloon lumen.