Nose-Mounted Physiological Sensor With Adjustable Joint

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Solution Overview

Problem

Existing patient monitoring devices often require invasive methods or cumbersome placements, such as finger clips or adhesive tapes, which can be uncomfortable and limit the range of physiological parameters that can be measured non-invasively, especially for respiratory and oxygen saturation monitoring.

Innovation Solution

A non-invasive physiological monitoring device configured to be secured to a patient's nose, featuring a rotatable and adjustable design with a joint system and biasing member, allowing for secure fitting across various nose shapes and sizes, and incorporating an emitter and diffuser for accurate measurement of physiological parameters like oxygen saturation and respiratory rates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional patient monitoring devices use finger clips or adhesive tapes, then they can measure physiological parameters, but they cause discomfort and limit the range of measurable parameters

Engineering Contradiction:
Improverange of physiological parametersVSAvoidcomfort
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The device is divided into an upper sensor body and a lower sensor body that can be positioned on different parts of the nose, allowing separate optimization of each component's function and comfort characteristics

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The joint mechanism allows dynamic adjustment of the angle between the upper and lower sensor bodies, enabling the device to adapt to different nose shapes and sizes while maintaining secure contact for accurate measurements

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a non-invasive nose-mounted device is designed to accommodate various nose shapes and sizes, then comfort and adaptability improve, but device complexity increases

Engineering Contradiction:
Improveaccommodation of nose shapesVSAvoidjoint system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The joint mechanism provides controlled dynamic adjustment capability, allowing the device to adapt to different nose geometries through angular adjustment while maintaining a relatively simple overall structure

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The biasing member integrates multiple functions: it applies contact force for secure mounting, maintains the desired angle between sensor bodies, and accommodates variations in nose shape, thereby reducing the need for additional complex adjustment mechanisms

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If the device uses a secure fitting mechanism with joints and biasing members, then measurement accuracy improves, but the device becomes more complex

Engineering Contradiction:
Improvephysiological parameter accuracyVSAvoidmounting mechanism
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The biasing member combines multiple functions into a single component: it applies contact force for secure mounting, maintains the desired angle between sensor bodies, and accommodates variations in nose shape, thereby reducing the need for additional complex adjustment mechanisms

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The biasing member automatically adjusts and maintains optimal contact force and positioning without requiring manual adjustment, allowing the device to self-adapt to different nose shapes while maintaining measurement accuracy

Inventive Principle:
Principle #25Self-service

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

The device provides comfortable and accurate non-invasive monitoring of physiological parameters, accommodating different nose shapes and sizes, enhancing user experience and measurement precision.

Implementation Method 1

one or more light sources transmitting optical radiation into or reflecting off through a portion of the body

Methodology Applied
Scientific EffectLight transmission through tissue: Absorption (EM radiation)

Implementation Method 2

one or more photodetection devices detect the attenuated light and output one or more detector signals

Methodology Applied
Scientific EffectLight detection: Photoelectric Effect

Data Source

PatentUS11272883B2Physiological sensor
Publication Date: 2022.03.15 MASIMO CORP
  • US11272883B2 patent drawing
  • US11272883B2 patent drawing
  • US11272883B2 patent drawing

AI summary

A patient monitor can noninvasively measure a physiological parameter using sensor data from a nose sensor configured to be secured to a nose of the patient. The nose sensor can include an emitter and a diffuser. The diffuser is configured to generate a signal when detecting light attenuated by the nose tissue of the patient. An output measurement of the physiological parameter can be determined based on the signals generated by the diffuser.