Medication Verification Using NIR Spectra and Patient Biometrics

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Solution Overview

Problem

Existing medication adherence systems fail to verify both the medication taken and the patient identity, leading to potential incorrect medication administration and lack of objective evidence.

Innovation Solution

A medication assurance system using a handheld near-infrared (NIR) spectrometer and biometric device, such as a fingerprint scanner, for quick and accurate verification of medication and patient identity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electronic pillboxes or software-based reminder systems are used, then medication timing reminders are provided, but objective verification of both medication identity and patient identity is not achieved

Engineering Contradiction:
Improveverification accuracyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple verification functions into a single integrated system: a spectrometer for medication identification, a biometric sensor for patient identification, and a controller that correlates both identifications. This merging approach achieves reliable verification of both medication and patient identity simultaneously, rather than using separate reminder systems that cannot provide objective verification.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The controller acts as an intermediary that receives data from both the spectrometer and biometric sensor, processes this information, and determines whether the identified medication matches the identified patient's prescribed regimen. This intermediary component enables the system to provide objective verification by correlating multiple data sources.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If handheld NIR spectrometer is used for medication identification, then quick and accurate verification is achieved, but device complexity increases

Engineering Contradiction:
Improvemedication identification accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual medication verification methods with a handheld near-infrared (NIR) spectrometer that automatically identifies medication through spectral analysis. This substitution of mechanical/optical measurement for manual inspection achieves quick and accurate medication identification, despite the increased complexity of incorporating the spectrometer device.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Provides objective verification of medication and patient identity, reducing incorrect medication administration and ensuring adherence to medication schedules.

Implementation Method 1

A medication assurance system of the invention includes a portable near infrared (NIR) reflection spectrometer for obtaining a diffuse reflection spectrum of a pill

Methodology Applied
Scientific EffectNear-infrared radiation: Infrared Radiation

Implementation Method 2

a portable near infrared (NIR) reflection spectrometer for obtaining a diffuse reflection spectrum of a pill

Methodology Applied
Scientific EffectDiffuse reflection: Reflection

Implementation Method 3

a biometric device, such as a fingerprint scanner, for identifying a patient

Methodology Applied
Scientific EffectFingerprint recognition:

Data Source

PatentUS12603167B2Medication assurance system and method
Publication Date: 2026.04.14 VIAVI SOLUTIONS INC(US)
  • US12603167B2 patent drawing
  • US12603167B2 patent drawing
  • US12603167B2 patent drawing

AI summary

A medication assurance system for verification of both the medication and the patient is disclosed. A portable spectrometer is used to obtain a light spectrum of the medication. A subject identification or biometric device is used to identify the patient. A controller coupled to the portable spectrometer and the subject identification device identifies the medication by performing a chemometric analysis of the light spectrum. Based on the medication identified and the patient identified, the controller can determine if the medication is to be taken by the patient.