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Cannula and method of manufacture and use

  • US 6,533,770 B1
  • Filed: 01/21/1998
  • Issued: 03/18/2003
  • Est. Priority Date: 01/21/1998
  • Status: Expired due to Term
First Claim
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1. A cannula for delivering fluid to or withdrawing fluid from a patient, the cannula comprising:

  • a tubular body having a proximal end, a distal end, and at least one lumen;

    wherein the tubular body has at least two reinforced sections having an elongate reinforcing member, the tubular body having at least two unreinforced sections which are substantially free of any reinforcing member and include at least one opening through which fluid passes.

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