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Balloon connection and inflation lumen for atherectomy catheter

  • US 5,470,415 A
  • Filed: 04/08/1993
  • Issued: 11/28/1995
  • Est. Priority Date: 02/28/1990
  • Status: Expired due to Term
First Claim
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1. A method for joining an inflatable balloon to a cylindrical housing having an interior surface and an axial lumen, said method comprising:

  • inserting an end of a thermoplastic tube through an aperture in the housing;

    positioning a rod through the thermoplastic tube so that an end of the rod is disposed in an interior of the housing;

    inserting a heated mandrel axially into the housing through an open end of the housing;

    contacting the heated mandrel against the end of the thermoplastic tube to form a saddle flange which conforms to the interior surface of the housing;

    wherein the rod maintains an open passage from the interior of the housing to the interior of the tube; and

    forming the tube into a balloon.

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