LANCING DEVICE AND MULTI-LANCET CARTRIDGE
First Claim
1. A cartridge assembly for a lancing device having a lancet-indexing ratchet mechanism with a pawl, the cartridge assembly comprising:
- a housing;
a carrier rotationally mounted within the housing;
an array of lancets carried by the carrier, the lancets each having a detachable protective cap, the lancets each moveable along a lancing stroke path; and
a plurality of ratchet teeth extending from the carrier and configured to be sequentially engaged by the pawl to advance the array of lancets within the housing.
4 Assignments
0 Petitions
Accused Products
Abstract
A medical lancing device including a replaceable multi-lancet cartridge. The lancing device includes a drive mechanism, an activation mechanism, and an advancing mechanism. The advancing mechanism includes a linear-pull slide that is moved in and out to operate an indexing ratchet mechanism, a cam-guided charger mechanism, and a cam-guided lancet cap displacement mechanism. The indexing ratchet mechanism sequentially advances the lancets in the cartridge to an active position. The cam-guided charger mechanism charges the drive mechanism and separates the cap from the active lancet. And the cam-guided cap displacement mechanism moves the separated cap from the lancing stroke path of the active lancet. The activation mechanism then releases the charged active lancet to traverse the unobstructed lancing stroke path to pierce the subject'"'"'s skin at a desired lancing site.
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Citations
22 Claims
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1. A cartridge assembly for a lancing device having a lancet-indexing ratchet mechanism with a pawl, the cartridge assembly comprising:
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a housing; a carrier rotationally mounted within the housing; an array of lancets carried by the carrier, the lancets each having a detachable protective cap, the lancets each moveable along a lancing stroke path; and a plurality of ratchet teeth extending from the carrier and configured to be sequentially engaged by the pawl to advance the array of lancets within the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A multi-lancet cartridge assembly for a lancing device comprising:
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a generally circular housing comprising a base and a cover with a central opening defining an annular shell having an outer circumferential rim with a lancet opening formed therein; a carrier disk rotationally mounted within the housing, the carrier disk defining a plurality of radially-oriented guide channels; and a plurality of lancets, each lancet positioned for translational motion within a corresponding one of the plurality of radially-oriented guide channels. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A cartridge for use in connection with a lancing device, comprising:
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a housing comprising a shell having an outer periphery with a lancet opening therein and an interior chamber within the shell; a carrier rotationally mounted within the interior chamber of the housing and defining a plurality of lancet guide paths; an array of lancets, each lancet mounted for translation along a corresponding one of the plurality of lancet guide paths; and a ratchet mechanism for allowing rotation of the carrier within the housing in a first direction of rotation, but restricting rotation of the carrier within the housing in a second direction of rotation opposite the first direction of rotation. - View Dependent Claims (19, 20, 21, 22)
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Specification