Pacifier Pressure Pulse Assessment for Non-Nutritive Suck Stability

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Solution Overview

Problem

Premature infants often exhibit oromotor dyscoordination, leading to an inability to suck and feed orally, which delays discharge from neonatal intensive care units and hinders the development of coordinated oromotor behavior, with current evaluations being subjective and lacking objective, quantitative measures.

Innovation Solution

A system and method using a spatiotemporal index (NNS-STI) to objectively measure non-nutritive suck stability by analyzing suck pattern structure and stability, providing a quantitative composite index of oromotor pattern stability through the NNS-STI generator, which processes suck data to generate a non-nutritive suck spatiotemporal index.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If non-nutritive sucking is evaluated by placing a gloved finger in the infant's mouth to observe rhythmicity, strength, cycle frequency, and burst duration, then clinical observations can be characterized with validated scales, but the evaluation remains subjective and lacks objective, quantitative measures

Engineering Contradiction:
Improveevaluation precisionVSAvoidevaluation complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the manual mechanical evaluation method (placing a gloved finger in the infant's mouth) with an automated sensor-based system that uses pressure sensors, accelerometers, or other transducers to objectively measure suck parameters. This substitution transforms subjective clinical observation into objective quantitative data, improving measurement precision while the integrated processing system manages the complexity of multiple measurement parameters.

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

Solution Approach 2:

The evaluation system is designed to automatically collect, process, and analyze suck data without requiring continuous manual intervention. The system self-regulates by continuously monitoring suck parameters, automatically characterizing the data using validated scales, and generating quantitative assessments, thereby reducing the complexity of manual evaluation procedures while maintaining high measurement precision.

Inventive Principle:
Principle #25Self-service

2Reliability

If objective and quantitative measures of oromotor ability are implemented, then neonatal intensive care diagnostics and treatment would be greatly benefited, but current practice lacks such measures

Engineering Contradiction:
Improvediagnostic reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism where the system continuously monitors suck parameters, compares them against established norms and developmental milestones, and provides quantitative feedback on oromotor development. This feedback loop enhances diagnostic reliability by providing objective data that can track progress over time and guide treatment decisions, while the automated nature of the feedback system prevents excessive complexity in data interpretation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system measures multiple parameters of suck behavior (pressure, duration, frequency, rhythm) and transforms these physical parameters into standardized quantitative metrics. By changing the representation of raw sensor data into meaningful clinical parameters that align with developmental milestones, the system achieves high diagnostic reliability without requiring complex analytical procedures, as the parameter transformation is based on established physiological norms.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3459448B1Method for improved non-nutritive sucking
Publication Date: 2026.04.08 UNIVERSITY OF KANSAS
  • EP3459448B1 patent drawingFigure 1
  • EP3459448B1 patent drawingFigure 2
  • EP3459448B1 patent drawingFigure 3

AI summary

Method and apparatus are provided for generating an index associated with development of non-nutritive suck skill. A method includes measuring a plurality of non-nutritive suck (NNS) pressure samples, generating a plurality of correlation values using the NNS pressure samples, and generating a measure of non-nutritive suck development using the plurality of correlation values. A therapeutic pressure pulse is generated inthe pacifier.