Analysis system and method for determining an analyte in a body fluid
First Claim
1. An analysis system for determining an analyte in a body fluid sample acquired through a prick in the skin, including:
- a multi-part magazine comprising at least a puncturing element magazine and an analysis element magazine, each having a plurality of chambers, whereinin the analysis element magazine, the plurality of chambers are analysis element chambers, which each contain one analysis element, each analysis element having a sample contact zone and a reagent system containing at least one reagent, whose reaction with the sample results in a measurable change of a measuring variable, andin the puncturing element magazine, the plurality of chambers are puncturing element chambers, which each contain one puncturing element, each puncturing element having a tip for piercing into the skin, the tip having a capillary channel which forms a fluid connection between the tip and a sample transfer zone of the puncturing element,a reusable analysis instrument havinga puncturing drive for driving a puncture movement of a puncturing element on a movement path, which comprises a propulsion phase in the puncturing direction and, after reaching a reversal point of the puncture movement, a retraction phase opposite to the puncturing direction,a mounting for receiving the multi-part magazine in such a manner that one puncturing element chamber of the puncturing element magazine at a time is located in a functional position, in which a puncturing element in the puncturing element chamber can be moved by the puncturing drive, anda measuring and evaluation apparatus for measuring the measurable change of the measuring variable and for determining a desired analysis result,whereinin the functional position of the multi-part magazine, both the puncturing element magazine and the analysis element magazine can be brought into a relative position, in which a puncturing element exit opening of a puncturing element chamber and a puncturing element entry opening of an analysis element chamber are adjacent to one another aligned in such a manner that a puncturing element can be moved from the puncturing element chamber through the puncturing element exit opening of the puncturing element chamber and through the puncturing element entry opening of the adjacent analysis element chamber into the analysis element chamber,the puncturing element entry opening of the analysis element chamber is sealed by means of a sealing film which is opened before or during the puncture movement of the puncturing element from the puncturing element chamber into the analysis element chamber, andthe movement path of the puncturing element includes a transfer position in which the sample transfer zone of the puncturing element is positioned adjacent to the sample contact zone of the analysis element, to thereby produce a fluid connection by a relative movement, transverse to the puncturing direction, between the puncturing element and the analysis element to transfer the sample from the puncturing element to the analysis element.
3 Assignments
0 Petitions
Accused Products
Abstract
A system for determining an analyte in a body fluid includes a magazine comprising two partial magazines, one including chambers containing analysis elements having a sample contact zone and a reagent system containing a reagent, whose reaction with the body fluid results in a change of a variable, and another including chambers containing puncturing elements having a tip having a capillary channel, which forms a fluid connection between the tip and a sample transfer zone of the puncturing element. The system may also include an analysis instrument having a puncturing drive for driving a puncturing element on a movement path, a mounting for receiving the magazine such that one chamber of the magazine at a time is located in a functional position, in which a puncturing element in the chamber can be moved by the puncturing drive, and a measuring and evaluation apparatus for measuring the change of the variable.
25 Citations
35 Claims
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1. An analysis system for determining an analyte in a body fluid sample acquired through a prick in the skin, including:
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a multi-part magazine comprising at least a puncturing element magazine and an analysis element magazine, each having a plurality of chambers, wherein in the analysis element magazine, the plurality of chambers are analysis element chambers, which each contain one analysis element, each analysis element having a sample contact zone and a reagent system containing at least one reagent, whose reaction with the sample results in a measurable change of a measuring variable, and in the puncturing element magazine, the plurality of chambers are puncturing element chambers, which each contain one puncturing element, each puncturing element having a tip for piercing into the skin, the tip having a capillary channel which forms a fluid connection between the tip and a sample transfer zone of the puncturing element, a reusable analysis instrument having a puncturing drive for driving a puncture movement of a puncturing element on a movement path, which comprises a propulsion phase in the puncturing direction and, after reaching a reversal point of the puncture movement, a retraction phase opposite to the puncturing direction, a mounting for receiving the multi-part magazine in such a manner that one puncturing element chamber of the puncturing element magazine at a time is located in a functional position, in which a puncturing element in the puncturing element chamber can be moved by the puncturing drive, and a measuring and evaluation apparatus for measuring the measurable change of the measuring variable and for determining a desired analysis result, wherein in the functional position of the multi-part magazine, both the puncturing element magazine and the analysis element magazine can be brought into a relative position, in which a puncturing element exit opening of a puncturing element chamber and a puncturing element entry opening of an analysis element chamber are adjacent to one another aligned in such a manner that a puncturing element can be moved from the puncturing element chamber through the puncturing element exit opening of the puncturing element chamber and through the puncturing element entry opening of the adjacent analysis element chamber into the analysis element chamber, the puncturing element entry opening of the analysis element chamber is sealed by means of a sealing film which is opened before or during the puncture movement of the puncturing element from the puncturing element chamber into the analysis element chamber, and the movement path of the puncturing element includes a transfer position in which the sample transfer zone of the puncturing element is positioned adjacent to the sample contact zone of the analysis element, to thereby produce a fluid connection by a relative movement, transverse to the puncturing direction, between the puncturing element and the analysis element to transfer the sample from the puncturing element to the analysis element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A multi-part magazine for an analysis instrument, including:
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a puncturing element magazine having a plurality of puncturing element chambers, each containing a puncturing element, an analysis element magazine having a plurality of analysis element chambers, each containing an analysis element, wherein each analysis element has a sample contact zone and a reagent system containing at least one reagent, whose reaction with a body fluid results in a measurable change of a measuring variable, and each puncturing element has a tip for piercing into the skin having a capillary channel which forms a fluid connection between the tip and a sample transfer zone of the puncturing element, wherein the multi-part magazine is configured to be received in a mounting of an analysis instrument such that one puncturing element at a time in one of the puncturing element chambers of the multi-part magazine can be moved by a puncturing drive of the analysis instrument on a movement path, which comprises a propulsion phase in the puncturing direction, in order to execute a puncture movement and which comprises a transfer position in which the sample transfer zone of the puncturing element is positioned adjacent to the sample contact zone of the analysis element, to thereby produce a fluid connection by a relative movement, transverse to the puncturing direction, between the puncturing element and the analysis element to transfer the sample from the puncturing element to the analysis element, and wherein the puncturing element magazine and the analysis element magazine are movable relative to one another so that a puncturing element exit opening of a puncturing element chamber and a puncturing element entry opening of an analysis element chamber are adjacent and aligned, the analysis element magazine further including a transparent area, the analysis element being positioned in the analysis element magazine relative to the transparent area in such a manner that a change of a measuring variable in the analysis element can be measured by means of a photoelectric measuring unit, which is positioned outside the multi-part magazine. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A multi-part magazine for an analysis instrument, including:
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a puncturing element magazine having a plurality of puncturing element chambers, each containing a puncturing element, an analysis element magazine having a plurality of analysis element chambers, each containing an analysis element, wherein each analysis element has a sample contact zone and a reagent system containing at least one reagent, whose reaction with a body fluid results in a measurable change of a measuring variable, and each puncturing element has a tip for piercing into the skin having a capillary channel which forms a fluid connection between the tip and a sample transfer zone of the puncturing element, wherein the multi-part magazine is implemented for being received in a mounting of an analysis instrument in such a manner that one puncturing element at a time in one of the puncturing element chambers of the multi-part magazine can be moved by a puncturing drive of the analysis instrument on a movement path, which comprises a propulsion phase in the puncturing direction, in order to execute a puncture movement, wherein the puncturing element magazine and the analysis element magazine are movable relative to one another so that a puncturing element exit opening of a puncturing element chamber and a puncturing element entry opening of an analysis element chamber are adjacent to one another aligned in such a manner that one puncturing element can be moved from the puncturing element chamber through its puncturing element exit opening and through the puncturing element entry opening of the adjacent analysis element chamber into the analysis element chamber and into a transfer position in which the sample transfer zone of the puncturing element is positioned adjacent to the sample contact zone of the analysis element, to thereby produce a fluid connection by a relative movement, transverse to the puncturing direction, between the puncturing element and the analysis element to transfer the sample from the puncturing element to the analysis element, and the puncturing element entry opening of the analysis element chamber is sealed by means of a sealing film, which is positioned and implemented to be opened before or during the puncture movement of the puncturing element from the puncturing element chamber into the analysis element chamber. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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Specification