Analytical test element
First Claim
1. A test element for analysis of a liquid sample, the test element comprising:
- a channel which is suitable for capillary transport of the liquid sample and which is provided with an inlet opening for the liquid sample and with an air outlet opening,a free space inside the test element, the inlet opening and the air outlet opening each being contiguous with the free space,at least one test field being arranged inside the channel at a distance from the inlet opening,the test element comprises a sample application site which is closed with a seal, and which is configured such that, when the seal is opened, the sample application site, the inlet opening of the channel, the air outlet opening of the channel, and the free space are simultaneously opened toward an outside environment of the test element, the sample application site being accessible for direct application of the liquid sample from outside the test element to be received inside the channel via flow of the liquid sample through the sample application site, the free space, and then through the inlet opening, for analysis in the at least one test field, wherein the seal is opened by one of being pierced and being cut.
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Accused Products
Abstract
The invention relates to an analytical test element for analysis of a liquid sample. The analytical test element may contain a channel which is suitable for capillary transport of the liquid sample and which is provided with an inlet opening for the liquid sample and with an air outlet opening. At least one test field may be arranged in the channel, spaced apart from the inlet opening. The test element comprises a sample application site which is closed with a seal and which is designed in such a way that, when the seal is opened, the sample application site and the inlet opening of the channel are simultaneously open to the outside environment of the test element. The test element can then receive the liquid sample inside the channel via the sample application site and inlet opening, for analysis in the test field. The invention also relates to a test element magazine and to a system for analysis of liquid samples with at least one test element.
53 Citations
37 Claims
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1. A test element for analysis of a liquid sample, the test element comprising:
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a channel which is suitable for capillary transport of the liquid sample and which is provided with an inlet opening for the liquid sample and with an air outlet opening, a free space inside the test element, the inlet opening and the air outlet opening each being contiguous with the free space, at least one test field being arranged inside the channel at a distance from the inlet opening, the test element comprises a sample application site which is closed with a seal, and which is configured such that, when the seal is opened, the sample application site, the inlet opening of the channel, the air outlet opening of the channel, and the free space are simultaneously opened toward an outside environment of the test element, the sample application site being accessible for direct application of the liquid sample from outside the test element to be received inside the channel via flow of the liquid sample through the sample application site, the free space, and then through the inlet opening, for analysis in the at least one test field, wherein the seal is opened by one of being pierced and being cut. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A test element for analysis of a liquid sample, the test element comprising:
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a channel which is suitable for capillary transport of the liquid sample and which is provided with an inlet opening for the liquid sample and with an air outlet opening, a free space inside the test element, the inlet opening and the air outlet opening each being interfaced with the free space, at least one test field being arranged inside the channel at a distance from the inlet opening, and a sample application site which is closed with a seal, the test element being configured such that, when the seal is opened by one of being pierced and being cut, the sample application site, the inlet opening of the channel, the air outlet opening of the channel, and the free space are simultaneously opened toward an outside environment of the test element, and the free space is in flow communication with the channel through the inlet opening, and the channel is in flow communication with the free space through the air outlet opening.
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34. A test element for analysis of a liquid sample, the test element comprising:
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a channel which is suitable for capillary transport of the liquid sample and which is provided with an inlet opening for the liquid sample, a free space inside the test element, at least one test field being arranged inside the channel at a distance from the inlet opening, and a sample application site which is closed with a seal, the test element being configured such that, when the seal is opened by one of being pierced and being cut, the sample application site, the inlet opening of the channel, and the free space are simultaneously opened toward an outside environment of the test element, the channel further including an air outlet opening positioned such that during the capillary transport of the liquid sample inside the channel to the at least one test field, the air outlet opening ensures release of air from the channel to the free space, the inlet opening and the air outlet opening being contiguous with the free space.
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35. A test element for analysis of a liquid sample, the test element comprising:
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a free space inside the test element; a channel which is suitable for capillary transport of the liquid sample and which is provided with an inlet opening for the liquid sample at an interface with the free space and with an air outlet opening at another interface with the free space, at least one test field being arranged inside the channel at a distance from the inlet opening, and a sample application site which is closed with a seal, the test element being configured such that, when the seal is opened, the channel is opened toward an outside environment of the test element, and the test element can receive the liquid sample inside the channel via the sample application site and then through the inlet opening, for analysis in the at least one test field, wherein the channel includes a first portion that extends from the inlet opening, away from the free space, toward the test field, and a second portion that extends away from the test field, toward the free space, to the air outlet opening.
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36. A test element for analysis of a liquid sample, the test element comprising:
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a channel which is suitable for capillary transport of the liquid sample and which is provided with an inlet opening for the liquid sample and with an air outlet opening, a free space separate from the channel, the inlet opening and the air outlet opening each being disposed between the channel and the free space, and each being contiguous with the free space, at least one test field being arranged inside the channel at a distance from the inlet opening, and a sample application site which is closed with a seal, the test element being configured such that, when the seal is opened by one of being pierced and being cut, the sample application site, the inlet opening of the channel, the air outlet opening of the channel, and the free space are simultaneously opened toward an outside environment of the test element, and the test element can receive the liquid sample inside the channel via the sample application site and then through the inlet opening, for analysis in the at least one test field.
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37. A test element for analysis of a liquid sample, the test element comprising:
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a channel which is suitable for capillary transport of the liquid sample and which is provided with an inlet opening for the liquid sample and with an air outlet opening, a free space inside the test element, the inlet opening and the air outlet opening being interfaced with the free space, at least one test field being arranged inside the channel at a distance from the inlet opening, and a sample application site which is closed with a seal, the test element being configured such that, when the seal is opened by one of being pierced and being cut, the sample application site, the inlet opening of the channel, the air outlet opening of the channel, and the free space are simultaneously opened toward an outside environment of the test element, and the liquid sample, once applied, passes through the sample application site, then through the free space, and is drawn by capillary force through the inlet opening, into the channel and onto the test field for analysis.
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Specification