Blood sampling device with lancet damping system
First Claim
1. A blood sampling device, comprising:
- a housing;
a lancet assembly;
a lancet holder disposed in said housing, said lancet holder being adapted to support said lancet assembly, said lancet holder being movable in a lancing direction between a cocked position and a puncture position;
a drive spring for forcing said lancet holder from said cocked position to said puncture position; and
means for damping movement of said lancet holder during travel of said lancet holder from said puncture position to an intermediate position between said puncture position and said cocked position, said damping means comprising;
a corrugated surface disposed on said lancet holder; and
a damping member which makes contact with said corrugated surface during movement of said lancet holder.
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Accused Products
Abstract
A blood sampling device is provided with a housing, a lancet assembly, a lancet holder disposed in the housing for supporting the lancet assembly, the lancet holder being movable in a lancing direction between a cocked position and a puncture position, a drive spring for forcing the lancet holder from the cocked position to the puncture position, and a mechanism for damping movement of the lancet holder during travel of the lancet holder from the puncture position to an intermediate position between the puncture position and the cocked position. The damping mechanism may be provided in the form of a non-planar surface, such as a corrugated surface, disposed on the lancet holder and a damping member which makes contact with the non-planar surface during movement of the lancet holder.
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Citations
20 Claims
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1. A blood sampling device, comprising:
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a housing; a lancet assembly; a lancet holder disposed in said housing, said lancet holder being adapted to support said lancet assembly, said lancet holder being movable in a lancing direction between a cocked position and a puncture position; a drive spring for forcing said lancet holder from said cocked position to said puncture position; and means for damping movement of said lancet holder during travel of said lancet holder from said puncture position to an intermediate position between said puncture position and said cocked position, said damping means comprising; a corrugated surface disposed on said lancet holder; and a damping member which makes contact with said corrugated surface during movement of said lancet holder. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A blood sampling device, comprising:
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a housing; a lancet assembly; a lancet holder disposed in said housing, said lancet holder being adapted to support said lancet assembly, said lancet holder being movable in a lancing direction between a cocked position and a puncture position; a drive spring for forcing said lancet holder from said cocked position to said puncture position; and means for damping movement of said lancet holder during travel of said lancet holder from said puncture position to an intermediate position between said puncture position and said cocked position. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A blood sampling device, comprising:
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a housing; a lancet assembly; a lancet holder disposed in said housing, said lancet holder having a corrugated surface disposed thereon and being adapted to support said lancet assembly, said lancet holder being movable in a lancing direction between a cocked position and a puncture position; spring means for moving said lancet holder through a range of positions including said cocked and puncture positions and an intermediate position disposed between said cocked and puncture positions; means for maintaining said lancet holder in said cocked position; means for releasing said lancet holder from said cocked position to cause said spring means to force said lancet holder from said cocked position to said puncture position; and a damping member which makes contact with said corrugated surface disposed on said lancet holder during movement of said lancet holder. - View Dependent Claims (17, 18, 19, 20)
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Specification