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Needle placement detection and security device and method

  • US 8,808,218 B2
  • Filed: 01/29/2010
  • Issued: 08/19/2014
  • Est. Priority Date: 01/29/2010
  • Status: Active Grant
First Claim
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1. A blood access device comprising:

  • a conductive needle in electrical communication with a first lead and configured to pierce a patient'"'"'s skin and gain access to a blood vessel;

    an insulative housing supporting a fluid communication junction between the needle and a flexible tube; and

    a conductor in electrical communication with a second lead and having a first end connected to the insulative housing and a second end extending from the insulative housing in a direction coextensive with the needle such that (i) when the needle has gained access to the blood vessel, the conductor is electrically insulated from the conductive needle and (ii) if the needle is pulled so as to interrupt access with the blood vessel, the conductive needle and the conductor come into contact with each other, and wherein the conductive needle is radially offset from the longitudinal axis of the conductor for both (i) and (ii).

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