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ACCESS DEVICE

  • US 20080262431A1
  • Filed: 04/18/2008
  • Published: 10/23/2008
  • Est. Priority Date: 04/18/2007
  • Status: Active Grant
First Claim
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1. An access device for placing a medical article within a body space, comprising:

  • a needle having an elongated needle body with a distal end and a hub from which the needle body extends;

    a dilator disposed on the needle body, the needle and the dilator being moveable relative to each other from a first position, wherein the distal end of the needle lies distal of the dilator, and a second position wherein the distal end of the needle lies within the dilator, the dilator including a dilator hub and an elongated dilator shaft that extends from the dilator hub; and

    a locking mechanism operating between the needle and the dilator to inhibit movement of the needle relative to the dilator when in the second position, the locking mechanism being configured to allow movement of the needle from the first position toward the second position without engagement by the locking mechanism so as to lessen resistance to the movement.

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