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Device for taking a sample from a body

  • US 20040068231A1
  • Filed: 09/25/2003
  • Published: 04/08/2004
  • Est. Priority Date: 10/03/2002
  • Status: Active Grant
First Claim
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1. A device for taking samples from a body, of the type comprising:

  • a needle (4) whose distal end forms a recess able to receive said sample;

    a cannula (5) coaxially surrounding said needle, said needle and cannula being able to slide relative to one another;

    slides (11, 12) connected respectively to said needle and cannula;

    springs (14, 15) connected respectively to said slides;

    a grippable housing (2) of elongate shape, defining an inner seat (10) inside which are arranged in series, on a longitudinal axis of said housing, said slides (11, 12) which are able to slide between a forward position in the housing, for which said needle (4) and cannula (5) are in a rest position and ready to be primed for taking a sample, and a rearward position for which said needle and cannula are in a primed, retracted position ready for said sampling;

    a control button (6) for bringing said slides to the rearward position counter to said respective springs;

    means for blocking said slides (11, 12) in the rearward position; and

    a trigger mechanism (8, 9) for canceling said blocking means and, under the action of said springs, causing the forward displacement of said slides and firing of said needle and cannula, wherein said slides (11, 12) comprise limit stops (16, 17) which are transversely offset with respect to one another, and said control button (6) comprises a lug (18) which can be moved transversely under the action of displacement means and acts sequentially on said offset limit stops in order to bring said slides one after the other to the rearward position.

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