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Method and apparatus for intravenous access

  • US 3,991,756 A
  • Filed: 08/18/1975
  • Issued: 11/16/1976
  • Est. Priority Date: 08/18/1975
  • Status: Expired due to Term
First Claim
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1. A single needle access portal to provide intravenous communication comprising,a cannula:

  • means for attaching said cannula attached to a selected artery or vein with one portion of said cannula exiting from the skin,needle means having a tip and adapted for insertion in said cannula, andmeans to selectively locate said needle tip along the interior of said cannula whereby driving said needle tip through said cannula and into the selected vein or artery achieves percutaneous access to the vascular system without repeated percutaneous needling of the skin.

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