LANCET HAVING ADJUSTABLE PENETRATION DEPTH

  • US 20080045992A1
  • Filed: 10/30/2007
  • Published: 02/21/2008
  • Est. Priority Date: 06/11/1998
  • Status: Active Grant
First Claim
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1. A lancet device comprising:

  • a first housing comprising a proximal end and a distal end;

    a first guide wall disposed within the first housing;

    the first guide wall comprising an opening;

    a cap removably mounted to the proximal end of the first housing and for positioning the lancet device relative to a skin surface;

    a needle holding member for holding a lancet, the needle holding member being at least partially contained within the first housing;

    at least a portion of the needle holding member being able to move within the opening of the first guide wall;

    a first spring for biasing the needle holding member toward an extended position;

    the first spring surrounding a portion of the needle holding member and being disposed between the first guide wall and a shoulder of the needle holding member;

    a movable trigger arranged on a side of the first housing;

    the trigger having a first position and a second position, wherein when the trigger is moved to the second position, the needle holding member is allowed to move from a retracted position to an extended position;

    a movable second housing comprising a proximal end, a distal end and a second guide wall arranged at the proximal end of the second housing;

    the second guide wall comprising an opening;

    at least a portion of the needle holding member being able to move within the opening of the second guide wall;

    the second housing being configured to move the needle holding member to the retracted position when the second housing is moved away from the first housing;

    the proximal end of the second housing being configured to move axially within the distal end of the first housing;

    a second spring for biasing the second housing towards the first housing; and

    the second spring surrounding a portion of the needle holding member and being disposed between the second guide wall and another shoulder of the needle holding member, wherein at least a portion of the needle holding member is always retained within the first housing.

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