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System and method for establishing vascular access

  • US 6,692,462 B2
  • Filed: 12/11/2000
  • Issued: 02/17/2004
  • Est. Priority Date: 05/19/1999
  • Status: Expired due to Fees
First Claim
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1. A method for establishing vascular access, said method comprising the steps of:

  • inserting an access needle and a plastically deformable, radially expandable sleeve substantially simultaneously through a percutaneous tissue tract leading to a target blood vessel so that a distal end of the sleeve lies within the blood vessel and a proximal end of the sleeve lies outside the tissue tract, wherein the radially expandable sleeve has a compliant or elastic structure so that its cross-section will collapse after expansion;

    expanding the expandable sleeve to a larger diameter configuration to provide an access lumen to the blood vessel; and

    locking said radially expandable sleeve to retain said larger diameter configuration.

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