Systems and methods for detecting leaks
First Claim
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1. A bodily fluid sample analysis system comprising:
- an analyte measurement system configured to determine concentration of an analyte in a bodily fluid;
a fluid handling network comprising a plurality of tubes and at least one junction between the plurality of tubes, wherein the fluid handling network comprises a patient end configured to receive bodily fluid drawn from a patient, wherein the fluid handling network is configured to provide at least a portion of the drawn bodily fluid to the analyte measurement system;
an arrival sensor configured to detect the arrival of the bodily fluid at a location in the fluid handling network;
one or more valves having a closed position and an open position;
one or more pumps configured to apply pressure to the fluid handling network;
at least one pressure sensor configured to measure pressure in the fluid handling network; and
a controller configured to;
actuate at least one of the one or more pumps to draw bodily fluid from a patient through the patient end into the fluid handling network and to transport the bodily fluid to the location in the fluid handling network associated with the arrival sensor;
receive data from the arrival sensor indicating the arrival of the bodily fluid at the location;
determine whether the fluid handling network is leaking based at least in part on the time that the bodily fluid arrived at the location associated with the arrival sensor;
close at least one of the one or more valves to block fluid flow through a tube between the patient end and the at least one junction;
apply pressure to the fluid handling network using the one or more pumps;
receive data from the at least one pressure sensor regarding a pressure in the fluid handling network;
confirm whether the fluid handling network is leaking based at least in part on the data received from the at least one pressure sensor;
actuate the one or more valves to isolate a first portion of the fluid handling network;
apply pressure to the isolated first portion of the fluid handling network using the one or more pumps;
receive data from the at least one pressure sensor to measure a pressure in the isolated first portion of the fluid handling network;
determine whether the isolated portion of the fluid handling network is leaking based at least in part on the data received from the at least one pressure sensor;
isolate a second portion of the fluid handling network;
apply pressure to the isolated second portion of the fluid handling network;
measure a pressure in the isolated second portion of the fluid handling network; and
determine a location of a leak based at least in part on the measured pressure of the first isolated portion of the fluid handling network and the measured pressure of the second isolated portion of the fluid handling network.
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Abstract
Various embodiments disclosed herein relate to detecting leaks in a patient monitoring system. The system can include a fluid handling network configured to receive a fluid sample drawn from a patient and to deliver at least a portion of the fluid sample to an analyte measurement system. The system can isolate at least a portion of the fluid handling network, can apply pressure to the at least a portion of the fluid handling network, can measure the pressure in the at least a portion of the fluid handling network, and can determine whether a leak is present in the at least a portion of the fluid handling network based at least in part on the measured pressure.
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Citations
38 Claims
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1. A bodily fluid sample analysis system comprising:
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an analyte measurement system configured to determine concentration of an analyte in a bodily fluid; a fluid handling network comprising a plurality of tubes and at least one junction between the plurality of tubes, wherein the fluid handling network comprises a patient end configured to receive bodily fluid drawn from a patient, wherein the fluid handling network is configured to provide at least a portion of the drawn bodily fluid to the analyte measurement system; an arrival sensor configured to detect the arrival of the bodily fluid at a location in the fluid handling network; one or more valves having a closed position and an open position; one or more pumps configured to apply pressure to the fluid handling network; at least one pressure sensor configured to measure pressure in the fluid handling network; and a controller configured to; actuate at least one of the one or more pumps to draw bodily fluid from a patient through the patient end into the fluid handling network and to transport the bodily fluid to the location in the fluid handling network associated with the arrival sensor; receive data from the arrival sensor indicating the arrival of the bodily fluid at the location; determine whether the fluid handling network is leaking based at least in part on the time that the bodily fluid arrived at the location associated with the arrival sensor; close at least one of the one or more valves to block fluid flow through a tube between the patient end and the at least one junction; apply pressure to the fluid handling network using the one or more pumps; receive data from the at least one pressure sensor regarding a pressure in the fluid handling network; confirm whether the fluid handling network is leaking based at least in part on the data received from the at least one pressure sensor; actuate the one or more valves to isolate a first portion of the fluid handling network; apply pressure to the isolated first portion of the fluid handling network using the one or more pumps; receive data from the at least one pressure sensor to measure a pressure in the isolated first portion of the fluid handling network; determine whether the isolated portion of the fluid handling network is leaking based at least in part on the data received from the at least one pressure sensor; isolate a second portion of the fluid handling network; apply pressure to the isolated second portion of the fluid handling network; measure a pressure in the isolated second portion of the fluid handling network; and determine a location of a leak based at least in part on the measured pressure of the first isolated portion of the fluid handling network and the measured pressure of the second isolated portion of the fluid handling network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A patient monitoring system comprising:
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an analyte measurement system configured to determine concentration of an analyte in a bodily fluid; a fluid handling network comprising a plurality of tubes and at least one junction between the plurality of tubes, wherein the fluid handling network comprises a patient end configured to receive bodily fluid drawn from a patient, and wherein the fluid handling network is configured to provide at least a portion of the drawn bodily fluid to the analyte measurement system; a valve having a closed position and an open position, wherein the closed position blocks fluid flow through a tube between the patient end and the at least one junction, and wherein the open position permits fluid flow through the tube between the patient end and the at least one junction; at least one pump configured to apply pressure to the fluid handling network; at least one pressure sensor configured to measure pressure in the fluid handling network; and a controller configured to; close the valve to block fluid flow through a tube between the patient end and the at least one junction; apply pressure to fluid handling network using the at least one pump; receive data from the at least one pressure sensor regarding a pressure in the fluid handling network; determine whether the fluid handling network is leaking based at least in part on the data received from the at least one pressure sensor; actuate one or more valves to isolate a first portion of the fluid handling network; apply pressure to the first portion of the fluid handling network using the at least one pump; measure a pressure in the first portion of the fluid handling network using the at least one pressure sensor; actuate the one or more valves to isolate a second portion of the fluid handling network; apply pressure to the second portion of the fluid handling network using the at least one pump; measure a pressure in the second portion of the fluid handling network using the at least one pressure sensor; and determine a location of a leak based at least in part on the measured pressure of the first portion of the fluid handling network and the measured pressure of the second portion of the fluid handling network. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A fluid sample analysis system comprising:
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an analyte measurement system configured to determine concentration of an analyte in a fluid sample; a fluid handling network configured to receive a fluid sample and to provide at least a portion of the fluid sample to the analyte measurement system; one or more valves having a closed position and an open position; at least one pump configured to apply pressure to the fluid handling network; at least one pressure sensor configured to measure pressure in the fluid handling network; and a controller configured to; actuate the one or more valves to isolate a first portion of the fluid handling network; apply pressure to the isolated first portion of the fluid handling network using the at least one pump; receive data from the at least one pressure sensor to measure a pressure in the isolated first portion of the fluid handling network; determine whether the isolated first portion of the fluid handling network is leaking based at least in part on the data received from the at least one pressure sensor; isolate a second portion of the fluid handling network; apply pressure to the second isolated portion of the fluid handling network; measure a pressure in the second isolated portion of the fluid handling network; and determine a location of a leak based at least in part on the measured pressure of the first isolated portion of the fluid handling network and the measured pressure of the second isolated portion of the fluid handling network. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification