Model-based infusion site monitor
First Claim
1. A device, comprising:
- a vascular access device (VAD) configured to deliver a medication to an infusion site region of a patient;
a user interface configured to receive input information;
a sensor that measures a plurality of fluid state parameters of a fluid delivery channel through which the medication is delivered by the VAD to the infusion site region of a patient; and
a processor that (i) creates a model of a state of the infusion site region, comprising fluid state parameters of an interstitial tissue at the infusion site region, based on the fluid state parameters and the input information, wherein the model comprises a determination of a hydrostatic pressure component of a fluid flow and an osmotic gradient component of the fluid flow, the osmotic gradient component being indicative of a difference in a protein concentration across a membrane of the fluid delivery channel, and (ii) provides a communication to an output device if the fluid state parameters at the infusion site region are not within expected infusion site region parameters.
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Accused Products
Abstract
A medication delivery monitoring device is disclosed. The device includes a user interface configured to receive input information, and a sensor configured to measure a plurality of fluid state parameters of a fluid delivery channel through which the medication is delivered by a vascular access device (VAD) to an infusion site region of the patient. The device also includes a processor configured to determine a state of the infusion site region based on the plurality of measured fluid state parameters and the input information, and an output device configured to provide a communication regarding the state of the infusion site region. Methods and computer-readable mediums for monitoring medication delivery are also disclosed.
33 Citations
21 Claims
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1. A device, comprising:
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a vascular access device (VAD) configured to deliver a medication to an infusion site region of a patient; a user interface configured to receive input information; a sensor that measures a plurality of fluid state parameters of a fluid delivery channel through which the medication is delivered by the VAD to the infusion site region of a patient; and a processor that (i) creates a model of a state of the infusion site region, comprising fluid state parameters of an interstitial tissue at the infusion site region, based on the fluid state parameters and the input information, wherein the model comprises a determination of a hydrostatic pressure component of a fluid flow and an osmotic gradient component of the fluid flow, the osmotic gradient component being indicative of a difference in a protein concentration across a membrane of the fluid delivery channel, and (ii) provides a communication to an output device if the fluid state parameters at the infusion site region are not within expected infusion site region parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device, comprising:
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a vascular access device (VAD) configured to deliver a medication to an infusion site region of a patient; a user interface configured to receive input information, wherein the input information includes patient information; a sensor that measures a plurality of fluid state parameters of a fluid delivery channel through which the medication is delivered by the VAD to the infusion site region of a patient, wherein the fluid state parameters comprise pressure and resistance; an output device; and a processor that (i) creates a model of a state of the infusion site region, comprising fluid state parameters of an interstitial tissue at the infusion site region, based on the fluid state parameters and the input information, wherein the model comprises a determination of a hydrostatic pressure component of a fluid flow and an osmotic gradient component of the fluid flow, the osmotic gradient component being indicative of a difference in a protein concentration across a membrane of the fluid delivery channel, and (ii) provides a communication to the output device if the fluid state parameters at the infusion site region are not within the model of a state of the infusion site region. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification