摘要:
The invention provides for a medical system (700) for determining a quantity of an analyte (602, 602') in a blood sample (600) using a cartridge (100). The medical instrument comprises the cartridge. The cartridge is operable for being spun around a rotational axis (102), wherein the cartridge comprises: an inlet (108) for receiving the blood sample; a blood separation chamber (118) for separating blood plasma from the blood sample, wherein the blood separation chamber is fluidically connected to the inlet; a processing chamber (124) containing at least one reagent comprising at least one specific binding partner (611) which is operable to bind to the analyte to form at least one analyte specific binding partner complex; a first valve structure (122) connecting the blood separation chamber to the processing chamber; a measurement structure (130) for enabling measurement of the quantity of the analyte, wherein the measurement structure comprises a chromatographic membrane (134), wherein the chromatographic membrane comprises an immobilized binding partner (620) for direct or indirect binding of the analyte or the at least one analyte specific binding partner complex, wherein the measurement structure further comprises an absorbent structure (132), wherein the absorbent structure is nearer to the rotational axis than the membrane; a second valve structure (128) connecting the processing chamber to the measurement structure; and a fluid chamber (136, 136') filled with a washing buffer (1202), wherein the fluid chamber is fluidically connected to the measurement structure, wherein a seal keeps the washing buffer with the fluid chamber.
摘要:
The invention provides for a cartridge (100) for determining an amount of at least two analytes in a biological sample. The cartridge comprises a cartridge inlet (104) for receiving the biological sample. The cartridge further comprises a sample holding chamber (106) fluidically connected to the cartridge inlet. The cartridge further comprises two or more metering chambers (116, 118, 120) for the biological sample for receiving a predetermine volume of the biological sample. Each of the two or more metering chambers comprises a sample inlet (122), a sample outlet (124), and a metered outlet (126) for dispensing a predetermined volume. The cartridge further comprises a connecting tube (128) for each of the two or more metering chambers that fluidically connects the sample inlet with the sample holding chamber. The cartridge further comprises at least one sample distribution channel (132) that is connected between the sample outlet of a first selected metering chamber with a sample inlet of a second selected metering chamber. The cartridge further comprises a microfluidic structure (800) for each of the two or more metering chambers. The microfluidic structure is connected to the sample outlet. The microfluidic structure is configured for processing sample into a processed sample. The cartridge further comprises a measurement structure (804) for each of the two or more metering chambers for enabling measurement of the processed sample to determine the amount of the analyte in the processed sample. The measurement structure is fluidically connected to the microfluidic structure.
摘要:
An automatic analyzer cartridge, spinnable around a rotational axis, has aliquoting and metering chambers, a connecting duct there between, and a vent connected to the metering chamber and nearer to the rotational axis than the metering chamber. The metering chamber has side walls that taper away from a central region. Capillary action next to the side walls is greater than in the central region. A circular arc about the rotational axis passes through a duct entrance in the aliquoting chamber and a duct exit in the metering chamber. The cartridge has a downstream fluidic element which is part of a fluidic structure for processing a biological sample into the processed biological sample. A valve connects the metering chamber to the fluidic element, which is fluidically connected to the fluidic structure. The fluidic structure receives the biological sample and has a measurement structure for enabling measurement of the processed biological sample.
摘要:
The invention provides for a cartridge (300) for an automatic analyzer (1100), wherein the cartridge is operable for being spun around a rotational axis (102). The cartridge comprises: a fluid chamber (104) for receiving a fluid (307), an aliquoting chamber (108), a first duct (106) connecting the fluid chamber and the aliquoting chamber, a metering chamber (112) operable for causing fluid to fill the metering chamber using capillary action, and a second duct (110) connecting the metering chamber with the aliquoting chamber, wherein the second duct comprises a duct entrance (114) in the aliquoting chamber. The second duct further comprises a duct exit (116) in the metering chamber wherein the duct exit is closer to the rotational axis than the duct entrance. The second duct is operable for causing fluid to flow to the metering chamber using capillary action. The cartridge further comprises a downstream fluidic element (122) connected to the metering chamber via a valve (121) and a fluidic structure (336) for processing a biological sample into the processed biological sample. The fluidic structure comprises a measurement structure (344, 1110) for enabling measurement of the processed biological sample, wherein the fluidic structure is configured for receiving the biological sample.
摘要:
The invention provides for a cartridge (100, 200, 2100) for an automatic analyzer (2200). The cartridge is operable for being spun around a rotational axis (102) and has at least one container (106) with at least one fluid reservoir (108, 202) containing at least one fluid (110, 204). Each container is configured to rotate about the rotational axis of within a cavity (104, 104') and relative to the cartridge. Each fluid reservoir comprises a pierceable seal (112) and cavity comprises at a piercing structure (114) for each fluid reservoir. The piercing structure is configured to open the seal when the container is rotated relative to the cartridge. Each container has a first frictional element (412) and each cavity has a second frictional element (414) that mate and cause friction. Each container comprises a first engaging surface (406) operable for mating with a second engaging surface (408) of a rotational actuator operable for applying torque to the container. The cartridge comprises a fluidic structure (120, 2116, 2117, 2118, 2120, 2121, 2122, 2123, 2124, 2125, 2130, 2131, 2132, 2133, 2134, 2135) for processing a biological sample into the processed biological sample. There is a duct (116) between the cavity and the fluidic structure. The fluidic structure comprises a measurement structure (2219, 2210) for enabling the measurement of the processed biological sample.
摘要:
Die Erfindung betrifft ein Testelement, das im Wesentlichen scheibenförmig und eben ist und um eine Achse, die senkrecht zur scheibenförmigen Testelementebene liegt, rotierbar ist, enthaltend eine Probenaufgabeöffnung zur Aufgabe einer flüssigen Probe, eine kapillaraktive Zone, insbesondere eine poröse, saugfähige Matrix, mit einem achsenfernen ersten Ende und einem achsennahen zweiten Ende, und einen Probenkanal, der von einem achsennahen Bereich zum achsenfernen ersten Ende der kapillaraktiven Zone reicht. Weiterhin betrifft die Erfindung ein Verfahren zur Bestimmung eines Analyten mit Hilfe des Testelements.