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Tapered intravenous cannula

  • US 6,685,680 B2
  • Filed: 07/16/2001
  • Issued: 02/03/2004
  • Est. Priority Date: 04/20/1999
  • Status: Expired due to Fees
First Claim
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1. A generally rigid cannula for communication through the skin with a body lumen of a patient including an entrance conduit, said cannula having a proximal end connected with a flow tube, said cannula having an inward taper of its outer wall extending at least most of the length between said proximal end and a distal end, whereby said distal end is of less diameter than said proximal end and said distal end being blunt wherein said tapered and blunt distal end is effectively incapable of cutting through living tissue and the tapered distal end adapted to be received by the entrance conduit that includes a generally corresponding shape to the tapered distal end forming a readily removable seal and locking connection with the entrance conduit.

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