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Catheter having a multilayered shaft section with a reinforcing mandrel

  • US 6,837,870 B2
  • Filed: 07/23/2002
  • Issued: 01/04/2005
  • Est. Priority Date: 07/23/2002
  • Status: Expired due to Term
First Claim
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1. A balloon catheter, comprising:

  • a) an elongated shaft having a proximal end, a distal end, an outer tubular member defining an inflation lumen and having at least a section which is multilayered with a first polymeric layer and a second polymeric layer secured to the first polymeric layer, and an inner tubular member extending within at least a distal section of the inflation lumen and defining a guidewire receiving lumen;

    b) a mandrel having at least a section between the first and second polymeric layers of the multilayered section of the outer tubular member; and

    c) an inflatable balloon on a distal shaft section having an interior in fluid communication with the inflation lumen.

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