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Intragastric balloon

  • US 5,129,915 A
  • Filed: 02/26/1990
  • Issued: 07/14/1992
  • Est. Priority Date: 07/05/1988
  • Status: Expired due to Term
First Claim
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1. Intragastric balloon intended to occupy a certain volume in a person'"'"'s stomach comprising, an envelope which is substantially fluid-tight enclosing at least one substance and water, the at least one substance comprising means for chemically reacting with the water to form a gas which inflates the envelope within the person'"'"'s stomach, and coating means enveloping the chemically reacting means, the coating means having a melting temperature in the range of between about 25°

  • C. to about 35°

    C. so that the chemically reacting means and the water are maintained separate of each other while the temperature of the coating means is below said range, and the coating melts, permitting the mixing of the chemically reacting means and the water after a person has swallowed the envelope and the temperature of the coating means has reached said range inside the person'"'"'s stomach so that said chemical reaction occurs thereafter and the gas formed by the reaction inflates the envelope inside the person'"'"'s stomach.

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