Methods and systems for medication monitoring

Inventors

Jenkins, Barry L.

Assignees

Continuous Precision Medicine

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Publication Number

US-10285638-B2

Patent

Publication Date

2019-05-14

Expiration Date


Abstract

A method of determining whether a patient has taken a dose of medication. The method includes including a first-pass tracer substance with at least one dose of the medication. The first-pass tracer substance is detectable in a body of the patient using a sensor. In addition, the first-pass tracer substance has a short half-life at the site of detection in the body. Further, processing circuitry determines that the patient has taken the dose of medication when the first-pass tracer substance is detected using the sensor at a time after a scheduled medication administration.

Core Innovation

The invention relates to systems and methods for medication monitoring and dosing management that determine whether a patient has taken a dose of medication. A first-pass tracer substance is included with at least one dose of the medication, where the first-pass tracer substance is detectable in a body of the patient using a sensor and has a short half-life at the site of detection in the body. Processing circuitry determines that the patient has taken the dose when the first-pass tracer substance is detected using the sensor at a time after a scheduled medication administration.

The method increases confidence in dose-taking determination by correlating sensor detection with visual evidence. The processing circuitry records at least one image of the patient taking the dose of the medication at the scheduled medication administration, and an increased probability that the patient has taken the dose is determined when the first-pass tracer substance is detected by the sensor and the detection correlates with the at least one image.

Additional embodiments expand the determination by using multiple tracer strategies and multi-sensor detection. A second first-pass tracer substance can be included with at least one second dose of the medication, a unique indicator of the dose is recorded, sensor detection results are matched to the unique indicator, and a negative result is output when the detection result and the unique indicator do not match. Further embodiments include a long half-life tracer substance detectable using a second sensor, detecting both short and long half-life tracers at a plurality of times, and determining an increased probability of adherence when the number of short-half-life detections corresponds to the number of scheduled doses during a detection period while the long half-life tracer is detected at least a predetermined number of times.

Claims Coverage

The partial content includes three independent claims. Across the independent claims, inventive features center on short half-life tracer substances at a detection site, sensor detection at times after scheduled administration, and probability-of-adherence determination with additional correlation or matching logic.

Detecting short half-life first-pass tracer after scheduled administration with image correlation

Including a first-pass tracer substance with at least one dose of the medication, the first-pass tracer substance being detectable in a body of the patient using a sensor and having a short half-life at the site of detection; determining with processing circuitry that the patient has taken the dose when the first-pass tracer substance is detected using the sensor at a time after a scheduled medication administration; recording at the scheduled medication administration at least one image of the patient taking the dose; and determining with processing circuitry an increased probability that the patient has taken the dose when the first-pass tracer substance detection correlates with the at least one image.

Using unique indicator matching with multiple first-pass tracer substances to output negative results on mismatch

Including a first-pass tracer substance with at least one dose and having a short half-life at the site of detection; determining with processing circuitry that the patient has taken the dose when the first-pass tracer substance is detected using the sensor at a time after a scheduled medication administration; including a second first-pass tracer substance with at least one second dose and having a short half-life at the site of detection; recording a unique indicator of the dose indicating that the dose contains the first-pass tracer substance or the second first-pass tracer substance; matching a result of sensor detection to the unique indicator; and outputting a negative result when the result of detection and the unique indicator do not match.

Combining short and long half-life tracer detection across first and second sensors for increased adherence probability

Including a first-pass tracer substance with at least one dose with a short half-life at the site of detection; detecting the first-pass tracer substance at a first plurality of times after the medication containing the first-pass tracer substance has been taken; including a long half-life tracer substance with at least one dose detectable in the body using a second sensor and having a long half-life at the site of detection; detecting the long half-life tracer substance at a second plurality of times; and determining with processing circuitry an increased probability that the patient is adhering to a prescribed medication regimen when the number of times the first-pass tracer substance was detected corresponds to the number of scheduled doses during a detection period and the long half-life tracer is detected at least a predetermined number of times during the detection period.

Across the independent claims, inventive coverage focuses on determining dose-taking and adherence using tracer substances detectable by sensors at times tied to scheduled administration. Confidence is increased either by correlating tracer detection with recorded images, by recording and matching a unique indicator for multiple tracer-containing doses with negative-result mismatch output, or by combining plurality-time detection of a short half-life tracer with plurality-time detection of a long half-life tracer across first and second sensors to evaluate adherence probability based on detection counts.

Stated Advantages

Increased probability that the patient has taken the dose of medication when tracer detection correlates with recorded images.

Negative result is output when sensor detection results do not match the unique indicator, indicating the patient did not take the dose.

Increased probability that the patient is adhering to a prescribed medication regimen based on detection counts corresponding to scheduled doses and additional long half-life tracer detection.

Documented Applications

Medication monitoring and dosing management to determine whether a patient has taken a dose of medication and to support adherence probability determination as part of a prescribed medication regimen.

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