摘要:
The invention relates to an analysis apparatus for body fluids, having the following characteristics: a) a housing (10) provided receiving element (12) for engaging a part of the body (66); b) an abutment (14) for the part of the body (66), which can be moved from a release position to an active position relative to the receiving element (12; c) a piercing unit (16) having a piercing element (18) that can pierce the part of the body (66) placed against the abutment (14) in a linear piercing stroke; d) a test strip unit (20) having a test strip (22) that is applied to the body fluids coming out of the part of the body (66) and e) a detecting unit (24) for examining the body fluid applied on one segment of the test strip (22).
摘要:
A method for detecting an analyte in a body fluid is disclosed. The method has the following steps: a) applying a sample (122) of the body fluid to a test element (120), said test element (120) comprising at least (i) a test field (128) comprising at least one test material (130) adapted to change at least one measurable property in the presence of the analyte, (ii) a capillary element (126) adapted to guide the sample (122) across said test field (128) in a flow direction (146), (iii) a first and a second measurement location (158, 160) within said test field (128), wherein the second measurement location (160) is offset from the first measurement location (158) in the flow direction (146); b) measuring the measurable property in said at least one first measurement location (158), thereby generating at least one first measurement value; c) measuring the measurable property in said at least one second measurement location (160), thereby generating at least one second measurement value; d) detecting the analyte by using an evaluation algorithm having at least two input variables, wherein (i) at least one first input variable of the at least two input variables includes an information on a difference between the first measurement value and the second measurement value, and (ii) at least one second input variable of the at least two input variables includes a measurement information on an analyte-induced change of the measurable property of the test material (130) in at least part of the test field (128).
摘要:
The invention relates to a measuring system, in particular for determining blood glucose, having a photometric measuring unit (16), which comprises a light source (22) and a detector (24), and an analytical test element (14) to which a sample can be applied, in particular a body fluid, and which can be moved in a beam path (18) between the light source (22) and the detector (24) for an optical detection of an analyte. For an improved multiwave length measurement, the light source (22) comprises a first emitter (26) that can be actuated in a first wavelength range for sending out pulsating alternating light (28) and a second emitter (30) that can be excited in a second wavelength range for emitting fluorescence light (32).
摘要:
The present invention relates to a method for evaluating the quality of an analysis element which is useful for determining the concentration of an analyte in a liquid sample, and to an analysis system which implements such a method. A reaction of the sample with a reagent system includes a complex formation of at least an enzyme and a co-enzyme, wherein a chemically modified form of the co-enzyme is a fluorophore. The quantity and/or the luminescence properties of said fluorophore relate to the concentration of the analyte. The quality of the analysis element is evaluated using an evaluation algorithm, wherein the evaluation algorithm comprises obtaining information relating to a measured enzyme activity AEnz(measured), wherein said information is at least partly derived from a measurement of the fluorescence lifetime of the fluorophore.
摘要:
The invention relates to a portable diagnostic measurement device for determining at least one analysis parameter of a bodily fluid, in particular for determining an analyte concentration in a bodily fluid and particularly preferably for blood glucose determinations, and to an analysis system which comprises the measurement device and at least one disposable (to be used one time) testing element. The testing element, designed as a carrier strip, contacts a receiving surface of the diagnostic measurement device at least partially in a flat manner, wherein the receiving surface is arranged on a narrow side of the housing of the measurement device.
摘要:
The invention relates to the field of analysis systems, in which a sample analysis is carried out using test strips. According to the invention, the analysis system comprises a transport unit (1), which is driven by piezo-active elements (2). The transport unit (1) permits the direct or indirect transport of test strips in such a way that analysis methods can be wholly or partly automated. The invention also relates to a transport unit for transporting a test strip (15), said unit being controlled by an optical detector that detects the test element (15) in the system.
摘要:
The invention relates to a test element (3) for producing a puncture wound in a body part, for obtaining a body fluid specimen from the body part and for analyzing, by way of a reagent system, the reaction of which has an analyte present in the body fluid leading to a change of a measured value, said change being characteristic for the desired analytical result and able to be optically measured on the test element (3), which comprises a puncturing element (4) and a test field (5). The puncturing element (4) comprises a capillary structure (13) and a sharp tip (19) at one end of the puncturing element (4) for producing a wound in the body part. The capillary structure (13) extends from the sharp tip (19) to the test field (5), and is fluidly connected to the sharp tip (19) such that after the skin is punctured by the sharp tip (19) of the puncturing element (4), body fluid penetrates the capillary structure (13), and that the test field (5) contains at least part of the reagent system, and that the test field (3) is arranged adjacent to a segment of the capillary structure (13) of the puncturing element (4) such that the body fluid having penetrated the capillary structure (13), makes contact with a fluid inlet side (104) of the test field (5). The test field (5) comprises a transparent base layer (45, 100) and a test layer (101) applied to the base layer (45, 100) by a coating process, wherein the side of the base layer (45, 100) facing away from the test field (5) forms the fluid inlet side (104) thereof, which faces the capillary structure (13).