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Automatic safe disposable blood sampling device of casing self-locking type

  • US 20050234487A1
  • Filed: 12/21/2004
  • Published: 10/20/2005
  • Est. Priority Date: 04/16/2004
  • Status: Active Grant
First Claim
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1. A casing self-locking type of automatic safe blood sampling device, comprising:

  • a casing formed with a launching chamber therein, the launching chamber being provided with a lancet needle-exiting hole at a front end thereof;

    a lancet needle arranged inside the launching chamber;

    a spring;

    a launching mechanism composed of the spring and a catch-launching mechanism;

    a press-launching mechanism provided on the casing; and

    a self-locking mechanism composed of barbs provided on the press-launching mechanism and self-locking hooks or self-locking notches provided on the casing corresponding to the barbs, the self-locking hooks or self-locking notches being located on paths along which the barbs are advanced, respectively.

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