Blood sampling device
First Claim
1. A lancing device comprising a plurality of lancets positioned in a planar array, said planar array defining a storage plane, wherein an active lancet selected from the plurality of lancets is transversely displaced out of the storage plane into a firing plane that is generally parallel to the storage plane.
6 Assignments
0 Petitions
Accused Products
Abstract
A lancing device for sampling blood or other body fluid of a subject includes a reusable housing and a disposable cassette. The cassette contains a plurality of lancets held in a storage plane. An active lancet is moved transversely from the storage plane into a firing plane, into engagement with a drive mechanism for actuation to lance the subject'"'"'s skin. After actuation, the used lancet is returned to the storage plane. Each lancet includes a protective endcap that is removed from the lancet just prior to use and then is replaced onto the lancet after use.
15 Citations
42 Claims
- 1. A lancing device comprising a plurality of lancets positioned in a planar array, said planar array defining a storage plane, wherein an active lancet selected from the plurality of lancets is transversely displaced out of the storage plane into a firing plane that is generally parallel to the storage plane.
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22. A lancing device comprising a plurality of lancets positioned in a planar array, said planar array defining a storage plane, wherein an active lancet selected from the plurality of lancets is transversely displaced out of the storage plane into a firing plane that is generally parallel to the storage plane, and wherein each lancet comprises a removable endcap which is separated from the active lancet before the active lancet is transversely displaced out of the storage plane into the firing plane, the active lancet being constrained against axial movement as the endcap is separated therefrom.
- 23. A lancing device comprising at least one lancet having a sharp tip and a protective endcap covering said sharp tip, said lancing device further comprising a decapping mechanism for removing the endcap from the lancet without axial displacement of the lancet.
- 26. A lancing device comprising a lancet movable between a retracted position and a lancing position, said lancet comprising a lancet body with a wing projecting outwardly therefrom, and wherein said lancing device further comprises a retraction spring separate from the lancet, said retraction spring contacting the outwardly projecting wing when the lancet is in the lancing position to bias the lancet toward the retracted position.
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27. A lancing device comprising a plurality of lancets, an advancing mechanism for advancing each of the plurality of lancets sequentially into an active position, and a drive mechanism for propelling an active lancet selected from the plurality of lancets from a retracted position to a lancing position, wherein the advancing mechanism comprises an arming lever that is rotationally actuated to advance the lancets, and linearly retracted to energize the drive mechanism.
- 29. A lancing device comprising a reusable housing and a cartridge containing a plurality of lancets, the cartridge being removably installed within the housing, said lancing device further comprising a pin extending from the cartridge and movable through a slot in the housing as the cartridge is advanced, wherein the slot has an end preventing further movement of the pin and thereby blocking further advancement of the cartridge to prevent reuse of a lancet.
- 33. A cassette for removable insertion within a lancing device, said cassette comprising a plurality of lancets positioned in a planar array, said planar array defining a storage plane, and wherein an active lancet selected from the plurality of lancets is transversely displaceable out of the storage plane into a firing plane within the cassette.
- 41. A cassette for removable insertion within a lancing device, said cassette comprising a lancet having a lancet body, a sharp tip projecting from the lancet body, and a protective endcap separably affixed over the sharp tip, said protective endcap comprising a follower in engagement with a cam track, said cam track defining a path for axially displacing the protective endcap from the lancet body as the lancet is laterally advanced within the cassette.
Specification