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Re-armable single-user safety finger stick device having reset for multiple use by a single patient

  • US 5,741,288 A
  • Filed: 06/27/1996
  • Issued: 04/21/1998
  • Est. Priority Date: 06/27/1996
  • Status: Expired due to Fees
First Claim
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1. A finger stick device for producing a plunge incision into the skin of a patient;

  • said device comprising;

    a housing having a first aperture;

    a sharp lancet tip initially disposed within said housing;

    a lancet support body disposed within said housing and connected to said lancet tip for supporting said lancet tip;

    resettable force means coupled to said support body for storing energy and for releasing said stored energy to linearly move said lancet tip from a location inside said housing through said first aperture to a predetermined location outside of said housing;

    resettable latch means for latching said force means in an energy storing state; and

    resettable release means for releasing said latch means to allow said force means to release said stored energy to drive said lancet tip outwardly from said housingwherein said resettable force means and resettable release means make up an autologous re-use feature, such that the finger stick device can be reset for use on the same patient in the event of an accidental release of stored energy producing linear movement of the lancet tip outwardly from the housing or in the event that a supplemental plunge incision is desired on the same patient,and a disabling means adapted to permanently disable the finger stick device comprising a plunger connected to said support body by a frangible neck section, said frangible neck adapted to be broken by rotation of said plunger relative to said support body,wherein said rotation of the plunger is not automatic or coincident with the movement of the lancet through the aperture the retraction of the lancet and can be voluntarily and manually performed.

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