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Gastric ring made of variable hardness elastomeric material

  • US 20050119672A1
  • Filed: 11/15/2002
  • Published: 06/02/2005
  • Est. Priority Date: 01/15/2002
  • Status: Abandoned Application
First Claim
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1. A gastroplasty band (1) comprising:

  • a flexible strip (2) designed to be closed around the stomach of a patient by closure means (5, 6) towards the two ends (3, 4) of the flexible strip in order to reduce the diameter of the opening of the stoma, said flexible strip including an annular compression chamber (7) of adjustable volume connected by a catheter (9) to a device for adjusting the diameter of said annular compression chamber by injecting or withdrawing fluid, said annular compression chamber being defined by walls comprising a dorsal reinforcement (12) extended by lateral walls (13);

    wherein the dorsal reinforcement (12) is made out of a first elastomer material having predetermined hardness d1 on the Shore A scale; and

    wherein the lateral walls (13) are made out of a second elastomer material of the same kind as the first elastomer material but of predetermined hardness d2 on the Shore A scale such that d2<

    d1, thereby obtaining the annular compression chamber (7) of hardness on the Shore A scale that varies across its thickness.

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