Fluid delivery system with electrochemical sensing of analyte concentration levels
First Claim
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1. A system for delivering fluid to, and sensing concentration levels of an analyte in a body of a patient, the system comprising:
- a dispensing apparatus configured to infuse fluid into the body of the patient; and
a sensing apparatus configured to be in communication with said dispensing apparatus and further configured to detect a concentration level of the analyte in the body of the patient, with the dispensing apparatus and the sensing apparatus sharing a single fluid reservoir, a single pump and a single cannula with one single exit port;
wherein the sensing apparatus is configured to detect the concentration level of the analyte upon diffusion of the analyte in the body of the patient into the fluid to be dispensed to the body of the patient by the dispensing apparatus prior to dispensing; and
wherein the system further comprises a processor-controller apparatus configured to receive input data from the sensing apparatus and, after processing the input data, authorize the dispensing apparatus to dispense fluid based on either the detected level of the analyte in the body of the patient, or the detected level of the analyte in the body of the patient and an external input;
wherein the sensing apparatus comprises an electrochemical detection mechanism having a sensor selected from a group consisting of an enzymatic assays sensor and a non-enzymatic analyte sensor;
wherein the electrochemical detection mechanism further comprises;
a working electrode;
a counter electrode; and
a measurement cell unit configured to include an analyte-saturated fluid configured to contact the working electrode, the measurement cell unit being located in a portion of the cannula which in use is located within the body of the patient;
wherein the measurement cell unit is configured to generate a current flow between the working electrode and the counter electrode; and
wherein the electrochemical detection mechanism is configured to determine the concentration level of the analyte in the body the patient based on the current flow.
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Abstract
A system and a method for delivering fluid to and sensing analyte levels in the body of the patient are disclosed. The system includes a dispensing apparatus configured to infuse fluid into the body of the patient and a sensing apparatus configured to be in communication with the dispensing apparatus and further configured to detect a level of analyte concentration in the body of the patient.
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Citations
16 Claims
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1. A system for delivering fluid to, and sensing concentration levels of an analyte in a body of a patient, the system comprising:
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a dispensing apparatus configured to infuse fluid into the body of the patient; and a sensing apparatus configured to be in communication with said dispensing apparatus and further configured to detect a concentration level of the analyte in the body of the patient, with the dispensing apparatus and the sensing apparatus sharing a single fluid reservoir, a single pump and a single cannula with one single exit port; wherein the sensing apparatus is configured to detect the concentration level of the analyte upon diffusion of the analyte in the body of the patient into the fluid to be dispensed to the body of the patient by the dispensing apparatus prior to dispensing; and wherein the system further comprises a processor-controller apparatus configured to receive input data from the sensing apparatus and, after processing the input data, authorize the dispensing apparatus to dispense fluid based on either the detected level of the analyte in the body of the patient, or the detected level of the analyte in the body of the patient and an external input; wherein the sensing apparatus comprises an electrochemical detection mechanism having a sensor selected from a group consisting of an enzymatic assays sensor and a non-enzymatic analyte sensor; wherein the electrochemical detection mechanism further comprises; a working electrode; a counter electrode; and a measurement cell unit configured to include an analyte-saturated fluid configured to contact the working electrode, the measurement cell unit being located in a portion of the cannula which in use is located within the body of the patient; wherein the measurement cell unit is configured to generate a current flow between the working electrode and the counter electrode; and wherein the electrochemical detection mechanism is configured to determine the concentration level of the analyte in the body the patient based on the current flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical fluid-delivery and sensing system, comprising:
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a housing comprising a first housing part, and a housing second part coupleable to the first housing part; an electrical circuit comprising a first circuit part in the first housing part, and a second circuit part in the second housing part, the electronic circuit being configured and arranged to become operable only when the first housing part is coupled to the second housing part; a dispensing apparatus for delivering fluid into a body of a patient, wherein at least part of the dispensing apparatus is enclosed within the first housing part; and a sensing apparatus in communication with the dispensing apparatus, the sensing apparatus being configured to detect a concentration level of the analyte in the body of the patient; wherein the dispensing apparatus and the sensing apparatus share a single fluid reservoir, a single pump, and a single cannula with one single exit port; and wherein the system further comprises a processor-controller apparatus configured to receive input data from the sensing apparatus and, after processing the input data, control the dispensing apparatus to deliver fluid based on either the detected level of the analyte in the body of the patient, or the detected level of the analyte in the body of the patient and an external input. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification