DISPOSABLE, PRE-CALIBRATED, PRE-VALIDATED SENSORS FOR USE IN BIO-PROCESSING APPLICATIONS
4 Assignments
0 Petitions
Accused Products
Abstract
Disposable, pre-sterilized, and pre-calibrated, pre-validated conductivity sensors are provided. These sensors are designed to store sensor-specific information, such as calibration and production information, in a non-volatile memory chip on the sensor. The sensors are calibrated using 0.100 molar potassium chloride (KCl) solutions at 25 degrees Celsius. These sensors may be utilize with in-line systems, closed fluid circuits, bioprocessing systems, or systems which require an aseptic environment while avoiding or reducing cleaning procedures and quality assurance variances.
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Citations
24 Claims
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1-5. -5. (canceled)
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6. A method of measuring the conductivity of a bio-processing fluid, comprising:
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providing a disposable sensor assembly having a sensor component, a memory component and a conduit for directing a bio-processing fluid for electrical interaction with the bio-processing fluid flowing through the conduit; running a bio-processing fluid through the conduit of the sensor assembly; passing a current through the sensor component during said running of the bio-processing fluid through the conduit and measuring a resulting change in an electrical value across the sensor component, said change in electrical value being a conductivity value that is indicative of a measured conductivity of the bio-processing fluid; retrieving a constant stored on the memory component of the sensor assembly; and calculating the actual conductivity of the bio-processing fluid, said calculating comprising mathematically combining the measured conductivity value with said constant. - View Dependent Claims (7, 8, 9, 10, 23, 24)
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11. A disposable sensor for measuring the conductivity of a bio-processing fluid, comprising:
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a conduit for directing a bio-processing fluid; a sensing portion having a memory component, said sensing portion being arranged for sensing conductivity of bio-processing fluid passing through said conduit, said sensing portion having a structure for measuring the temperature; and said apparatus is made of inexpensive disposable material suitable for single use of the apparatus. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification