Blood sampling device
First Claim
Patent Images
1. A lancing device comprising:
- a housing;
a cassette removably mounted within said housing, said cassette comprising at least one lancet having a lancet body and a protective cap;
a piston for propelling the lancet along a path of travel, said piston releasably engaging the lancet and causing separation of the lancet body and the protective cap along at least a portion of the path of travel of the lancet.
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Accused Products
Abstract
A device (302) for sampling and/or analyzing blood or other body fluid of a subject. A housing (306) contains a plurality of lancets (308) and optionally includes test elements (324) to take up a sample of blood, an evaluation system and a display. A complete system that can be handled as a single device, for example in the form of a wristwatch, includes a multiplicity of test elements (324) and lancets (308), which can be brought successively to a working position to perform multiple measurements. A cassette or carrier (320) includes multiple lancets (308) and/or test elements (324), for insertion into the device.
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Citations
68 Claims
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1. A lancing device comprising:
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a housing;
a cassette removably mounted within said housing, said cassette comprising at least one lancet having a lancet body and a protective cap;
a piston for propelling the lancet along a path of travel, said piston releasably engaging the lancet and causing separation of the lancet body and the protective cap along at least a portion of the path of travel of the lancet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A lancing device comprising:
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at least one lancet having a sharp tip and a protective cap covering said sharp tip;
a spring for driving the at least one lancet from a first position to a second position;
a cocking mechanism for loading said spring and removing the protective cap from said at least one lancet in a single continuous cocking motion.
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22. A lancing device comprising:
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at least one lancet having a protective cap;
a piston for engaging said at least one lancet and separating said protective cap from said lancet; and
a biasing element for moving said protective cap out of a path of travel of said lancet.
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23. A lancing device comprising:
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a plurality of lancets;
a biasing element for driving each of said plurality of lancets along a path of travel; and
a cocking mechanism for sequentially engaging successive lancets and arming said biasing element.
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24. A lancing device comprising:
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at least one lancet movable along a path of travel;
means for removing a protective cap from said at least one lancet; and
biasing means for moving the removed protective cap out of the path of travel of said lancet;
wherein said path of travel extends through said biasing means.
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- 25. A lancing device comprising multiple lancets, each lancet having a body with an elongated lancing tip mounted therein, each lancet body having at least one grip flange for cooperation with a cocking mechanism, configured and positioned to apply a tensile force generally coaxial with the axis of the lancing tip.
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28. A lancing device comprising a plurality of lancets and a drive mechanism for sequentially engaging each of said plurality of lancets and driving said lancet between a first position and a second position along an axis of translation, wherein the drive mechanism comprises a piston movable along an axis that is coaxial with the axis of translation of the lancet.
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29. A lancing cassette comprising:
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a plurality of lancets, each lancet comprising a lancet body, a lancet tip extending from one end of the lancet body, and a protective cap covering the sharp lancet tip;
a carrier defining a path of travel for each of said plurality of lancets; and
a retainer for retaining each of said plurality of lancets on its defined path of travel. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A lancing cassette comprising:
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at least one lancet having a protective cap mounted thereon;
a spring for moving the protective cap away from each said lancet; and
at least one guide constraining the protective cap along a path of travel under the influence of said spring. - View Dependent Claims (47)
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48. A lancing cassette comprising:
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a carrier;
a retainer mounted to said carrier; and
at least one lancet retained between said carrier and said retainer. - View Dependent Claims (49, 50, 51)
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52. A lancing cassette for removable insertion within a lancing device, said cassette comprising:
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a plurality of lancets; and
a series of engagement teeth for cooperative engagement with an advancing mechanism of the lancing device. - View Dependent Claims (53, 54, 55, 56, 57)
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58. A lancing cassette comprising a plurality of lancets mounted to a carrier, each of said plurality of lancets movable along said carrier between a retracted position and an extended position, at least one of said carrier and said lancets comprising a stop for limiting motion of said lancets beyond at least one of said retracted position and said extended position.
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59. A micro-lancet comprising:
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a lancet body;
a sharp lancet tip extending from a first end of said lancet body; and
a protective cap overlying the sharp lancet tip, and defining at least one recess for engagement with an external guide. - View Dependent Claims (60, 61, 62)
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63. A micro-lancet comprising:
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a polymeric lancet body having a first end and a second end; and
a needle extending through the lancet body and having a sharp tip projecting from the first end of said lancet body, wherein the end of said needle opposite the sharp tip is cut substantially flush with the second end of the lancet body.
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64. A micro-lancet comprising:
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a lancet body having a first end and a second end;
a needle having a sharp lancing tip projecting from the first end of said lancet body; and
a protective cap covering the sharp lancing tip, said protective cap being integrally formed with the lancet body and connected to the lancet body by two webs of material spaced on either side of said needle. - View Dependent Claims (65)
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- 66. A micro-lancet comprising a lancet body having a first end and a second end, a sharp lancing tip projecting from the first end of said lancet body, and a flange projecting transversely outward from the second end of said lancet body.
Specification