Methods and systems for dosing control in an automated fluid delivery system
First Claim
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1. A system for dispensing a fluid, comprising:
- a syringe pump configured to force an aliquot of a medical fluid from a fluid source into a fluid delivery channel;
at least one optical sensor configured to measure a sample value of a property of the aliquot, wherein the property is selected from the group consisting of concentration, salinity, optical properties, analyte concentration and combinations thereof;
a processor in communication with the syringe pump and the at least one optical sensor; and
a non-transitory, computer-readable storage medium in operable communication with the processor, wherein the computer-readable storage medium contains one or more programming instructions that, when executed, cause the processor to;
receive the sample value of the property of the aliquot,receive a source value of the property for the fluid source,determine a sample volume of the aliquot based on a comparison of the sample value and the source value,determine a pump coefficient based on a comparison of the sample volume with an expected volume, wherein the pump coefficient is configured to indicate a volume of the medical fluid forced into the fluid delivery channel per unit, andcontrol operation of the syringe pump to dispense a predetermined dose of the medical fluid based on the comparison of the sample volume with the expected volume.
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Abstract
Methods and systems for dispensing a fluid using an automated fluid delivery system are disclosed. A pump may be configured to force an aliquot of fluid into a fluid delivery channel. A processor may receive values of a property for the aliquot and the source of the aliquot. The processor may use the values to determine the volume of the aliquot. The determined volume is compared by the processor against an expected volume to establish the amount of fluid being pumped by the pump per unit, such as time or revolutions. The processor controls operation of the pump to dispense a predetermined dose based on the amount of fluid being pumped by the pump per unit.
16 Citations
20 Claims
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1. A system for dispensing a fluid, comprising:
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a syringe pump configured to force an aliquot of a medical fluid from a fluid source into a fluid delivery channel; at least one optical sensor configured to measure a sample value of a property of the aliquot, wherein the property is selected from the group consisting of concentration, salinity, optical properties, analyte concentration and combinations thereof; a processor in communication with the syringe pump and the at least one optical sensor; and a non-transitory, computer-readable storage medium in operable communication with the processor, wherein the computer-readable storage medium contains one or more programming instructions that, when executed, cause the processor to; receive the sample value of the property of the aliquot, receive a source value of the property for the fluid source, determine a sample volume of the aliquot based on a comparison of the sample value and the source value, determine a pump coefficient based on a comparison of the sample volume with an expected volume, wherein the pump coefficient is configured to indicate a volume of the medical fluid forced into the fluid delivery channel per unit, and control operation of the syringe pump to dispense a predetermined dose of the medical fluid based on the comparison of the sample volume with the expected volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of dispensing a medical fluid, comprising:
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providing a syringe pump configured to force an aliquot of a medical fluid from a fluid source into a fluid delivery channel; receiving, by a processor, a source value of an optical property for the fluid source and a sample value of the optical property for the aliquot measured by at least one optical sensor; determining, by the processor, a sample volume of the aliquot based on a comparison of the sample value of the optical property and the source value of the optical property; determining, by the processor, a pump coefficient based on a comparison of the sample volume with an expected volume, wherein the pump coefficient is configured to indicate a volume of the medical fluid forced into the fluid delivery channel per linear distance traveled; and controlling, by the processor, operation of the syringe pump to dispense a predetermined dose of the medical fluid based on a comparison of the sample volume with the expected volume. - View Dependent Claims (18, 19, 20)
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Specification