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Catheter systems having flow restrictors

  • US 20050245887A1
  • Filed: 04/22/2005
  • Published: 11/03/2005
  • Est. Priority Date: 04/22/2004
  • Status: Active Grant
First Claim
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1. A medical catheter comprising:

  • a lumen comprising an interior lumen surface;

    a flow restrictor located within the lumen, the flow restrictor comprising a restrictor body located within the lumen;

    a channel located between an outer surface of the restrictor body and the interior lumen surface of the lumen, wherein the channel extends from an upstream end of the restrictor body to a downstream end of the restrictor body, such that fluid passing through the lumen flows through the channel when the fluid is delivered to the flow restrictor below a selected pressure.

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