摘要:
The invention concerns a device and method for monitoring the integrity of filtering installations consisting of a filter housing (1) designed to perform integrity tests and for filtration, equipped with a plurality of filter elements (2, 3) and an electronic testing and monitoring unit (4) designed for monitoring and performing integrity tests, said filter elements (2, 3) having each a storage element and a communicating part (7) being connected to the monitoring and testing unit arranged in the filtering housing, whereon data of said electronic storage elements can be read. The invention also concerns a method for monitoring the integrity of filter installations by means of a plurality of filter elements (2, 3) in a filter housing (1) and of an electronic testing and monitoting unit designed to monitor and perform integrity tests, data stored by electronic storage elements (6) arranged on the filter elements (6) capable of being exchanged with the monitoring and testing unit, identification data and other data concerning the filter elements derived from the electronic storage elements (6) capable of being selected and of constituting the basis for integrity monitoring and testing.
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.
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:
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:
Device for fastening a sensor on containers with a flexible container wall, in particular mixing bags, comprising a sensor support which is fitted with a sensor, bears against an inner wall of the container wall at least with a rear subsurface averted from the sensor, and is guided with a central piece through an opening in the container wall in which the sensor support is fixed on the container wall by a clamping part which can be connected to the central piece, in which the container wall is clamped between the rear subsurface of the sensor support and on a bearing surface, facing an outer wall of the container, of the clamping part, and in which the rear subsurface bears sealingly against the inner wall of the container wall. The sensor support can also have an electronic or optical transmit unit which is connected to the sensor, in which case the transmit unit communicates in a wireless fashion with a receive unit arranged outside the container.
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:
The invention relates to a device for carrying out integrity tests on filter elements by means of test gases, comprising a device housing (3), with an electronic controller (4), arranged therein for regulation and control of the progress of a test programme for filter elements, a filter housing (6), for housing a filter element (2) under test, a pneumatic unit (5), connected to the controller (4) and the filter housing (6), in particular for the generation and measurement of gas pressures, an electronic memory unit (10), which may be connected to the filter element (2) under test and a communication unit (13′), connected to the controller (4), for the exchange of data between the controller (4) and the electronic memory element (10). The communication unit (13′) is preferably embodied as an antenna (14′) and the electronic memory element (10) as a transponder (11). In addition to the device a method for carrying out integrity tests and a computer programme product are also disclosed.
摘要:
The invention relates to a sensor for measuring an oxygen content in a liquid or gaseous sample, comprising a first sensor section (14a) that can be brought into contact with the sample and has a luminescent indicator dye embedded in an oxygen-permeable, first polymer matrix, light guiding means (10) for guiding luminescence excitation light from a light source (31, 32) to the first sensor section (14a), and light guiding means (10) for guiding luminescence emission light from the first sensor section (14a) to a detector (39). The invention is distinguished in that arranged adjacent to the first sensor section (14a) is a second sensor section (14b) that includes the same dye, embedded in an oxygen-impermeable, second polymer matrix.
摘要:
A test device (10) for filter systems, including a pneumatic unit (12), a control unit (14) for controlling the pneumatic unit (12), and a data processing unit (16), in which the pneumatic unit (12) is separated from the data processing unit (16) and the control unit (14) by a separating device (18) which substantially shields the pneumatic unit (12) against heat generated in the data processing unit (16) and the control unit (14).