Sleeve for removable lancet of lancing device
First Claim
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1. A lancet cartridge assembly for a lancing device, comprising:
- a cartridge adapted to be removably received by the lancing device;
a lancet removably received by said cartridge, said lancet being movable between a first position in which a penetrating member connected to said lancet is not exposed outside of the lancing device, and a second position in which said penetrating member is exposed outside of the lancing device to lance a site;
a sleeve surrounding said lancet and positioned between said lancet and said cartridge such that said sleeve moves with said lancet between said first position and second position, said sleeve having a first end and a second end, said second end configured for being struck by a firing mechanism; and
a spring for returning said lancet and sleeve to said first position after the site is lanced, where said spring is connected between said cartridge and said lancet to bias said lancet and sleeve to the first position.
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Accused Products
Abstract
A lancing device (121) substantially reduces wobble in a lancet (151) used to lance a site. The lancet (151) is removably received by a cartridge (161), which is movably received by the lancing device (121). The lancet (151) is movable between a first position in which a penetrating member (153) connected to the lancet (151) is unexposed and a second position in which the penetrating member is exposed outside of the lancing device (121) for lancing a site. A spring (171) is connected to the cartridge (161) to return the lancet (151) to the first position after the site is lanced.
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Citations
19 Claims
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1. A lancet cartridge assembly for a lancing device, comprising:
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a cartridge adapted to be removably received by the lancing device; a lancet removably received by said cartridge, said lancet being movable between a first position in which a penetrating member connected to said lancet is not exposed outside of the lancing device, and a second position in which said penetrating member is exposed outside of the lancing device to lance a site; a sleeve surrounding said lancet and positioned between said lancet and said cartridge such that said sleeve moves with said lancet between said first position and second position, said sleeve having a first end and a second end, said second end configured for being struck by a firing mechanism; and a spring for returning said lancet and sleeve to said first position after the site is lanced, where said spring is connected between said cartridge and said lancet to bias said lancet and sleeve to the first position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A lancet cartridge assembly for a lancing device comprising:
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a cartridge adapted to be removably received by the lancing device; a lancet received by said cartridge, said lancet being movable between a first position in which a penetrating member connected to said lancet is not exposed outside the lancing device and a second position in which said penetrating member is exposed outside the lancing device to lance a site on a patient; a sleeve surrounding said lancet and positioned between said lancet and said cartridge such that said sleeve moves with said lancet between said first position and said second position; said cartridge having a bore through which said lancet and said sleeve travel, said bore having an accommodating portion having a diameter larger than that of said bore; and said sleeve having a flange disposed within said accommodating portion of said bore, a length of said accommodating portion controlling a distance traveled by said lancet and sleeve when said sleeve is struck by a firing mechanism of the lancing device; and a spring for returning said lancet and sleeve to said first position after the site is lanced.
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10. A lancing device, comprising:
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a housing; a cartridge removably connected to said housing; a lancet removably received by said cartridge, said lancet being movable between a first position in which a penetrating member connected to said lancet is not exposed outside of said housing, and a second position in which said penetrating member is exposed outside of said housing to lance a site; a sleeve surrounding said lancet and positioned between said lancet and said cartridge such that said sleeve moves with said lancet between said first and second position; and a spring directly contacting said lancet for returning said lancet and sleeve to said first position after the site is lanced. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of lancing a site using a lancing device, comprising the steps of:
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installing a cartridge having a removable lancet in the lancing device, a sleeve surrounding said lancet and said cartridge such that said sleeve moves with said lancet between said first position and said second position, said sleeve having a first end and a second end, said second end configured for being struck by a firing mechanism, and a spring directly engaging said lancet for returning said lancet and sleeve to said first position after the site is lanced; using the lancet to lance the site; removing the cartridge from the lancing device; and removing the used lancet from the cartridge and installing a new lancet. - View Dependent Claims (17, 18, 19)
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Specification