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Balloon assembly with separately inflatable sections

  • US 5,415,635 A
  • Filed: 07/21/1992
  • Issued: 05/16/1995
  • Est. Priority Date: 07/21/1992
  • Status: Expired due to Term
First Claim
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1. An inflatable tubular member formed of polymeric material having:

  • a first inflatable working section which has an interior adapted to receive inflation fluid, which upon inflation to a first internal pressure within a first pressure range expands substantially to a first inflated diameter and which is significantly less compliant at pressures above the first pressure range than pressures within the first pressure range; and

    a second inflatable working section longitudinally disposed from the first inflatable working section which has an interior adapted to receive inflation fluid and in fluid communication with the interior of the first inflatable working section, which does not expand significantly upon inflation to the first internal pressure and upon inflation to a second internal pressure within a second pressure range, higher than the first internal pressure, expands to a second inflated diameter.

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