Point-of-care in-vitro blood analysis system
DC CAFCFirst Claim
1. A point-of-care blood measurement system for performing in-vitro diagnostic chemical analysis of a sample, comprisinga diagnostic card reader for receiving a raw sensory signal from a diagnostic card exposed to the sample and for providing an analog sensory signal directly related to the raw sensory signal, the raw sensory signal being dependant on a concentration of a chemical species in the sample, a data acquisition circuit for converting the analog sensory signal into a digital sensory signal;
- and a general-purpose computer separate and distinct from the diagnostic card reader for receiving and analyzing the digital sensory signal and producing an analysis result output representative of the chemical species concentration in the sample.
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Abstract
Devices for cost-effectively performing in-vitro diagnostic chemical analyses at multiple distributed locations within a medical institution are disclosed. One object of this invention is to provide a network of distributed sensory devices that acquire sensor signals from blood specimens and deliver those signals through a connect on to a central location for analysis by a general-purpose computer and generation of an analysis result. The analysis result is then sent to numerous locations on a network for display, including also possibly back to the location of signal acquisition. Cost-effective mobile sensing devices are also disclosed. The present system includes blood-sensor signal acquisition devices distributed throughout the hospital. The sensory signal-acquisition devices are card readers that acquire raw sensory signals from diagnostic cards inserted therein. These diagnostic cards are smart card-like devices modified for blood collection that contain sensory elements such as electrodes adapted to provide a raw sensory signal. The signal acquisition devices are modified smart card readers, which acquire the raw sensory data from an inserted smart card through a standardized contact arrangement and provide the raw data to data processing devices such as data acquisition cards. The system includes multiple remote ports for acquiring blood sensor signals. One or more card reader, when connected to a mobile general-purpose computer, can be converted into a complete mobile blood analyzer.
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Citations
31 Claims
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1. A point-of-care blood measurement system for performing in-vitro diagnostic chemical analysis of a sample, comprising
a diagnostic card reader for receiving a raw sensory signal from a diagnostic card exposed to the sample and for providing an analog sensory signal directly related to the raw sensory signal, the raw sensory signal being dependant on a concentration of a chemical species in the sample, a data acquisition circuit for converting the analog sensory signal into a digital sensory signal; - and
a general-purpose computer separate and distinct from the diagnostic card reader for receiving and analyzing the digital sensory signal and producing an analysis result output representative of the chemical species concentration in the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A point-of-care blood measurement system for performing in-vitro diagnostic chemical analysis of a sample, comprising
a diagnostic card reader for receiving a raw analog sensory signal from a single use blood diagnostic card exposed to the sample and for providing an analog output signal directly related to the raw sensory signal, the raw sensory signal being dependent on a concentration of a chemical species in the sample, sensor multiplexing means for generating a secondary output signal in addition to the analog sensory signal; -
a data acquisition circuit for converting the amplified analog sensory signal into a serial digital sensory signal; and
a general-purpose computer separate and distinct from the diagnostic card reader for receiving and analyzing the digital sensory signal and the secondary output signal and for producing an analysis result output representative of the chemical species concentration in the sample, the computer having an input port for connection to at least one data acquisition circuit.
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20. A point-of-care blood measurement system for performing in-vitro diagnostic chemical analysis of a sample, comprising
a diagnostic card reader for receiving a raw analog sensory signal from a single use blood diagnostic card and for providing an analog sensory output signal directly related to the raw sensory signal, the raw sensory signal being dependent on a concentration of a chemical species in the sample, the diagnostic card and the card reader further including fluidics for control and/or supply of the sample fluid and other reagents or calibrants or other fluids required for the sensory analysis of the sample; -
amplification means for amplifying the analog sensory output signal and sensor multiplexing means for generating an output including signals in addition to the analog sensory output signal;
a data acquisition circuit for converting the analog sensory output signal into a serial digital sensory signal, and a signal conversion circuit for converting the digital sensory signal of the data acquisition circuit to a radio frequency digital signal; and
a general-purpose computer for receiving and analyzing the radio frequency digital signal and producing an analysis result output representative of the chemical species concentration in the sample, the computer having a radio frequency receiver module for receiver module for receiving the radio frequency digital signal produced by the signal conversion means. - View Dependent Claims (21)
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22. A card reader for use in a point-of-care blood measurement system for performing in-vitro diagnostic chemical analysis of a sample including a diagnostic card reader, a data acquisition circuit for converting an amplified analog sensory signal output by he card reader into a digital sensory signal, and a general-purpose computer separate and distinct from the diagnostic card reader for receiving and analyzing the digital sensory signal and producing an analysis result output, the card reader comprising:
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a housing;
a connector for engaging a diagnostic card exposed to a sample and for receiving a raw sensory signal from the diagnostic card for providing an analog sensory signal directly related to the raw sensory signal, the raw sensory signal being dependent on a concentration of a chemical species in the sample;
a signal conversion circuit for converting the analog sensory signal into a digital sensory signal directly related to the raw sensory signal; and
a transmitter for wireless digital communication with the general-purpose computer for receiving the digital sensory signal from signal conversion circuit and transmitting the digital sensory signal to the computer. - View Dependent Claims (23, 24, 25, 26)
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27. A card for use in a point-of-care blood measurement system for performing in-vitro diagnostic chemical analysis of a sample including a diagnostic card reader;
- and a general-purpose computer separate and distinct from the diagnostic card reader for receiving and analyzing the digital sensory and producing an analysis result output, the car reader comprising;
a housing;
a connector for engaging a diagnostic card exposed to a sample and receiving a raw sensory signal from the diagnostic card for providing a analog sensory signal directly related to the raw sensory signal, the raw sensory signal being dependent on a concentration of a chemical species in the sample;
a signal conversion circuit for converting the analog sensory signal into a digital sensory signal directly related to the raw sensory signal;
and a transmitter for communication with the general-purpose computer, the transmitter being constructed for receiving the digital signal from the signal conversion circuit and producing a transmittable digital output signal for transmission to the computer through one of a wired connection and a wireless connection. - View Dependent Claims (28, 29, 30, 31)
- and a general-purpose computer separate and distinct from the diagnostic card reader for receiving and analyzing the digital sensory and producing an analysis result output, the car reader comprising;
Specification