US2016317744A1PendingUtilityA1
Fluid component analysis system and method for glucose monitoring and control
Est. expirySep 12, 2028(~2.2 yrs left)· nominal 20-yr term from priority
Inventors:Peter Rule
A61B 5/14532A61M 5/1415A61B 5/1427A61B 5/14546A61M 2230/201A61M 2205/12A61M 2005/14208A61M 5/16827A61M 2005/1726A61B 5/150862A61B 5/150755A61M 2205/52A61B 5/14557A61M 2205/3569A61B 5/155A61B 5/412A61M 5/142A61B 5/150229A61B 5/4839A61B 5/7475A61M 2005/1404A61M 5/1723A61B 5/14535A61M 2205/3313A61M 2205/18A61M 2205/502A61B 5/15003A61B 5/150786A61B 5/150305A61M 2230/005A61B 5/150221A61B 5/157A61B 5/150503A61B 5/150389G16H 20/17G16H 20/00G16H 20/10A61B 5/7275
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Claims
Abstract
Disclosed are methods and apparatuses for determining analyte concentration in a sample such as bodily fluid. Systems and methods disclosed herein can also include a treatment dosing system to infuse or inject a treatment dose (e.g. insulin, dextrose, etc.) and provide glycemic control. The dose of the treatment drug may be based on the patient's calculated sensitivity to treatment dosing, for example. The dose of the treatment drug may be based on the concentration of the analyte or the average value for the concentration of the analyte and/or the rate of change of the value of the concentration of the analyte. Delivery of the treatment drug can be cut off if the determined analyte concentration indicates that continued delivery would be harmful to the patient.
Claims
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26 . An infusion control system, comprising:
an external infusion pump configured to infuse an infusion fluid into a patient, the external infusion pump comprising a memory containing an identity of the infusion fluid; and a patient monitoring device configured to measure the concentration of an analyte in a sample of bodily fluid drawn from the patient, the patient monitoring device comprising a communication interface providing a communication link to the external infusion pump, the communication interface configured to query the external infusion pump and to receive the identity of the infusion fluid, and the patient monitoring system is configured to determine whether the infusion fluid affects the concentration of the analyte.
27 . The infusion control system of claim 26 , wherein the memory also contains the identity of the patient connected to the external infusion pump and the communication interface is configured to query the external infusion pump, to receive the identity of the patient connected to the external infusion pump, and to determine whether the external infusion pump is connected to the same patient as the patient monitoring device.
28 . The infusion control system of claim 26 , wherein the communication interface is configured to query the external infusion pump and receive an infusion rate at which the infusion fluid is being infused into the patient.
29 . The infusion control system of claim 26 , wherein the communication interface is configured to send a command to the external infusion pump.
30 . The infusion control system of claim 29 , wherein the command is to change the infusion rate at which the infusion fluid is infused into the patient.
31 . The infusion control system of claim 29 , wherein the command is to stop infusion of the infusion fluid.
32 . The infusion control system of claim 29 , wherein the external infusion pump is configured to query the patient monitoring system in response to receiving the command, to receive an identity of the analyte, to determine whether the infusion fluid affects the concentration of the analyte, and to refuse the command if the infusion fluid does not affect the concentration of the analyte.
33 . The infusion control system of claim 30 , wherein the external infusion pump is configured to query the patient monitoring system in response to receiving the command, to receive an identity of the patient associated with the monitoring device, to determine whether the external infusion pump is connected to the same patient, and to refuse the command if the external infusion pump is not connected to the same patient.
34 . The infusion control system of claim 26 , wherein the communication link is a wireless communication link.
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101 . A method of controlling a concentration of glucose in a body fluid of a patient, the method comprising:
infusing insulin into the patient using an infusion pump; accessing the body fluid of the patient using an analyte detection system that is separate from and spaced apart from the infusion pump; measuring a concentration of glucose in the body fluid of the patient using the analyte detection system; communicating information related to the concentration of glucose from the analyte detection system to the infusion pump using a wireless communication interface; automatically stopping the infusion of insulin by the infusion pump in response to a determination that the concentration of glucose in the body fluid is below a threshold; permitting the patient's glucose concentration to coast for a time uninfluenced by further infusion of insulin; and automatically restarting the infusion of insulin using the infusion pump.
102 . The method of claim 101 , comprising measuring the concentration of glucose in the body fluid of the patient at least once every 15 minutes.
103 . The method of claim 101 , comprising measuring the concentration of glucose in the body fluid substantially continuously.
104 . The method of claim 101 , further comprising triggering an alarm in response to the determination that the concentration of glucose in the body fluid is below a threshold.
105 . The method of claim 101 , further comprising determining a recommended dosage of insulin based at least in part on the patient's insulin sensitivity.
106 . A patient treatment and analysis system, comprising:
An external infusion pump configured to infuse an infusion fluid into the patient; an analyte detection system separate from and spaced apart from the external infusion pump, the analyte detection system comprising:
a body fluid analyzer configured to access a body fluid of the patient and measure an analyte in the body fluid of the patient; and
a wireless communication interface configured to communicate with the external infusion pump; and
a controller configured to:
automatically stop the infusion of insulin by the external infusion pump in response to a determination that a concentration of the analyte in the body fluid is below a threshold;
permit the concentration of the analyte in the body fluid to coast for a time uninfluenced by further infusion of the infusion fluid; and
automatically restarting the infusion of the infusion fluid using the external infusion pump.
107 . The system of claim 106 , wherein the body fluid analyzer is configured to measure the analyte in the body fluid of the patient at least once every 15 minutes.
108 . The system of claim 106 , wherein the body fluid analyzer is configured to measure the analyte in the body fluid of the patient substantially continuously.
109 . The system of claim 106 , wherein the controller is configured the trigger an alarm in response to the determination that the concentration of the analyte in the body fluid is below a threshold.
110 . The system of claim 106 , wherein the controller is configured to determine a recommended dosage of the infusion fluid based at least in part on the concentration of the analyte and the patient's sensitivity to the infusion fluid.
111 . The system of claim 110 , further comprising a user interface configured to display the recommended dosage and to receive input from a user, wherein the controller is configured to change the dosage of the infusion fluid based on the input from the user.
112 . The system of claim 106 , wherein the analyte is glucose, the infusion fluid is insulin.
113 . The system of claim 106 , wherein the body fluid is blood.
114 . The system of claim 106 , wherein the analyte detection system comprises the controller.
115 . A patient treatment and analysis system, comprising:
An infusion pump configured to infuse an infusion fluid into the patient; an analyte detection system separate from the infusion pump, the analyte detection system comprising:
a body fluid analyzer configured to access a body fluid of the patient and measure an analyte in the body fluid of the patient; and
a communication interface configured to communicate with the infusion pump; and
a controller configured to automatically stop the infusion of insulin by the external infusion pump in response to a determination based at least in part on the measurement of the analyte.
116 . The system of claim 115 , wherein the controller is configured to permit the concentration of the analyte in the body fluid to coast for a time uninfluenced by infusion of the infusion fluid.
117 . The system of claim 115 , wherein the controller is configured to automatically restarting the infusion of the infusion fluid using the external infusion pump.
118 . The system of claim 115 , wherein the body fluid analyzer is configured to measure the analyte in the body fluid of the patient at least once every 15 minutes.
119 . The system of claim 115 , wherein the body fluid analyzer is configured to measure the analyte in the body fluid of the patient substantially continuously.
120 . The system of claim 115 , wherein the controller is configured the trigger an alarm in response to the determination.
121 . The system of claim 115 , wherein the controller is configured to determine a recommended dosage of the infusion fluid based at least in part on the patient's sensitivity to the infusion fluid.
122 . The system of claim 121 , further comprising a user interface configured to display the recommended dosage and to receive input from a user, wherein the controller is configured to change the dosage of the infusion fluid based on the input from the user.
123 . The system of claim 115 , wherein the analyte detection system comprises the controller.Cited by (0)
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