摘要:
The invention relates to a method for determining the viability of cells in cell cultures, said method comprising the steps of: colouring the sample with a dye which can penetrate into individual cells depending on the viability of the latter, determining the proportions of cells which are coloured to differing extents. The invention is distinguished by virtue of the fact that a cell suspension of the coloured cells is centrifuged as a sample in a sample vessel (10) until the solid content present in the sample has settled as a compressed cell cake (13), and, in order to determine the proportions, the volumes of differently coloured sections (131, 132, 133) of the compressed cell cake (13) are determined as a measure of the proportions of cells of different viability.
摘要:
The invention relates to a device for detecting a sample in a longitudinal sample container (10), comprising a sample container holder (30) for holding the sample container in a housing. Said sample container holder comprises a side viewing window in the region of at least one longitudinal side of the sample container, and a front viewing window (35) in the region at least one front side of the sample container. Said device also comprises a first illumination arrangement for illuminating the sample container through the front viewing window, a second illumination arrangement for illuminating the sample container through the side viewing window, and an imaging photodetector for detecting a first image of the sample illuminated by means of the first illumination arrangement, and a second image of the sample illuminated by means of the second illumination arrangement. Said detection takes place through the side viewing window. Said device further comprises a digital data processing unit for overlaying the first and second images and for representing the resulting overlay image on a display device connected to the data processing unit.
摘要:
The invention relates to a device for detecting a sample in a longitudinal sample container (10), comprising a sample container holder (30) for holding the sample container in a housing. Said sample container holder comprises a side viewing window in the region of at least one longitudinal side of the sample container, and a front viewing window (35) in the region at least one front side of the sample container. Said device also comprises a first illumination arrangement for illuminating the sample container through the front viewing window, a second illumination arrangement for illuminating the sample container through the side viewing window, and an imaging photodetector for detecting a first image of the sample illuminated by means of the first illumination arrangement, and a second image of the sample illuminated by means of the second illumination arrangement. Said detection takes place through the side viewing window. Said device further comprises a digital data processing unit for overlaying the first and second images and for representing the resulting overlay image on a display device connected to the data processing unit.
摘要:
The invention relates to a method for determining the viability of cells in cell cultures, said method comprising the steps of: coloring the sample with a dye which can penetrate into individual cells depending on the viability of the latter, determining the proportions of cells which are colored to differing extents. The invention is distinguished by virtue of the fact that a cell suspension of the colored cells is centrifuged as a sample in a sample vessel (10) until the solid content present in the sample has settled as a compressed cell cake (13), and, in order to determine the proportions, the volumes of differently colored sections (131, 132, 133) of the compressed cell cake (13) are determined as a measure of the proportions of cells of different viability.
摘要:
Container and method for the mixing of media, in particular as a disposable container, which has at least one closable opening for the introduction and/or removal of the media and has a first sensor for measurement of at least one parameter of the mixture, in which at least one second sensor for measurement of the same parameter is arranged at a distance from the first sensor.
摘要:
A disposable container is provided for mixing media. The container has at least one closable opening for introducing and/or removing media and has sensor mounts at spaced apart locations on the wall of the container. Each sensor mount has a front surface facing into the container and a rear surface sealed against the wall of the container. Sensors are embedded in the respective sensor mounts at positions adjacent the front surfaces. The sensors measure at least one specified parameter of the media at spaced apart locations in the container. The seals between the rear surfaces of the sensor mounts and the wall of the container ensure sterility for the media in the container.
摘要:
A method is provided for mixing media in a container. The method includes introducing a first media into the container and then introducing a second media into the container while mixing the media to form a mixture. The method continues by measuring the values of two parameters of the mixture at spaced apart locations in the container. The introduction of the second media into the container may be interrupted based on a comparison of the measured values to a preselected intended value.
摘要:
Container and method for the mixing of media, in particular as a disposable container, which has at least one closable opening for the introduction and/or removal of the media and has a first sensor for measurement of at least one parameter of the mixture, in which at least one second sensor for measurement of the same parameter is arranged at a distance from the first sensor.
摘要:
Container system with one container (1) with a flexible partition, in particular a disposable container, that can be inserted into a carrying container that supports its lateral container partition (10) and in which liquid medium (8) that has been poured in can be mixed, with the carrying container (4) featuring at least one baffle (15, 15′, 15″, 15′″) on the internal support partition (11) that forms the lateral container partition.
摘要:
The invention relates to a disposable bioreactor comprising a reversible, externally attachable sensor arrangement for measuring a physical variable of a contained medium. A sensor adapter (28) for receiving an electronic sensor arrangement (34, 38; 42; 44a, 44b, 46, 48) interacting with the medium cross-flowing the peripheral lines (14, 16, 18), by means of an inner delimiting surface (32a, 32b; 42; 44a, 44b, 46, 48) of the sensor adapter, is integrated into at least one of the peripheral lines (14, 16, 18) of the bioreactor which is used to supply or discharge the medium. Said sensor adapter (28) is mounted on the peripheral line (14, 16, 18) as an insert extending the peripheral line (14, 16, 18) and which can be cross-flown by the contained medium.