Lancing device and multi-lancet cartridge
First Claim
Patent Images
1. A lancing device comprising a plurality of lancets;
- an advancing mechanism for sequentially advancing the lancets in a first direction and bringing an active one of the lancets into engagement with a drive mechanism; and
an anti-reverse mechanism for preventing advancement of the lancets in a second direction opposite the first direction.
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Accused Products
Abstract
A lancing device and a removable and replaceable multi-lancet cartridge for use in connection therewith are disclosed. The multi-lancet cartridge is advanced through sequential lancets, and anti-reverse features prevent reverse advancement of the cartridge. Interlocks are provided to prevent double-cocking the device, to reduce the likelihood of jamming of the mechanism. Improved trigger mechanisms and depth control mechanisms are provided.
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Citations
25 Claims
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1. A lancing device comprising a plurality of lancets;
- an advancing mechanism for sequentially advancing the lancets in a first direction and bringing an active one of the lancets into engagement with a drive mechanism; and
an anti-reverse mechanism for preventing advancement of the lancets in a second direction opposite the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- an advancing mechanism for sequentially advancing the lancets in a first direction and bringing an active one of the lancets into engagement with a drive mechanism; and
- 10. A lancing device comprising a replaceable multi-lancet cartridge, a drive mechanism for driving an active lancet of the multi-lancet cartridge between a cocked position and a lancing position, and an interlock for preventing advancement of the cartridge when the drive mechanism is cocked.
- 13. A lancing device comprising a plurality of lancets in an array, and an advancing mechanism to advance through the array of lancets and successively bring each of the plurality of lancets into an active position, wherein the advancing mechanism comprises indexing means to prevent partial advancement of the array to a position where no lancet is in the active position.
- 17. A lancing device comprising a replaceable multi-lancet cartridge having a plurality of lancets associated therewith, and lancet retaining means to prevent the lancets from being displaced from the cartridge until advanced into an active position.
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22. A replaceable multi-lancet cartridge for a lancing device, the cartridge comprising a plurality of lancets, each lancet having a removable endcap associated therewith, and at least one spring for biasing removed endcaps out of a path of travel of their associated lancets, said at least one spring being initially flat, and being flexed upon assembly into the cartridge.
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23. A lancing device comprising a drive piston, a drive spring for advancing the drive piston, and a return spring for retracting the drive piston, wherein one of the drive spring and the return spring surrounds an exterior portion of the drive piston, and the other of the drive spring and the return spring is captured within an internal recess of the drive piston.
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24. A lancing device comprising a drive piston movable between a cocked position and a fired position, the lancing device further comprising a trigger mechanism having a release member defining an aperture, wherein an expanded portion of the drive piston is releasably engageable within the aperture of the release member to retain the drive piston in its cocked position until released.
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25. A lancing device for use in combination with a multi-lancet cartridge comprising a plurality of lancets, the lancing device comprising a housing, a drive mechanism, an advancing mechanism for bringing the lancets of the multi-lancet cartridge sequentially into engagement with the drive mechanism, and a depth-control mechanism providing adjustment of a depth of penetration of an active one of the lancets.
Specification