Wristwatch Integrated Pulse Oximeter Optoelectronic Module

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Solution Overview

Problem

Conventional pulse oximeters can be cumbersome and cause discomfort when worn, limiting their convenience for monitoring physiological data such as oxygen saturation and pulse rate.

Innovation Solution

Integrating a pulse oximeter module with light emitting and sensing elements into a wristwatch, allowing for non-invasive physiological data monitoring without the need for additional devices, by using optoelectronic modules within the watch case or strap, enabling efficient and easy tracking of heart-rate and other sensory indicators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a pulse oximeter is used as a separate device, then it can provide accurate physiological data monitoring, but it causes discomfort and is cumbersome to wear

Engineering Contradiction:
Improvephysiological data monitoring accuracyVSAvoidwearing comfort
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines the pulse oximeter functionality with a wristwatch device, integrating the light emitting element, light sensing element, and processing components into a single wearable unit. This merging eliminates the need for separate pulse oximeter devices while maintaining monitoring accuracy and improving wearing comfort through unified design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The wristwatch is designed to perform multiple functions including timekeeping and physiological data monitoring. The device incorporates both the pulse oximeter functionality and standard watch features, allowing it to serve as both a timepiece and a health monitoring device, thereby improving ease of operation by eliminating the need for multiple separate devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple separate devices are used for physiological monitoring, then comprehensive data can be obtained, but device complexity and user burden increase

Engineering Contradiction:
Improvephysiological data monitoring capabilityVSAvoidnumber of devices required
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent integrates pulse oximeter functionality into a wristwatch, combining multiple monitoring capabilities into a single device. This reduces the number of separate devices users need to wear and manage while maintaining comprehensive physiological data collection capabilities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The wristwatch is designed as a multi-functional device that performs both timekeeping and physiological monitoring. This universality allows the device to replace multiple specialized devices, reducing overall system complexity and user burden while maintaining adaptability for various monitoring needs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 integrated pulse oximeter in a wristwatch provides a more convenient and comfortable means of monitoring physiological data, reducing the need for multiple devices and allowing for accurate measurements by being in close contact with wrist blood vessels.

Implementation Method 1

emitting a light signal from the optoelectronic module toward the human body and sensing, in the optoelectronic module, a light signal reflected by the human body

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 2

The amount of light absorbed by blood and soft tissues depends on the concentration of hemoglobin, and the amount of light absorption at each frequency depends on the degree of oxygenation of the hemoglobin within the tissues

Methodology Applied
Scientific EffectLight absorption by hemoglobin: Absorption (EM radiation)

Data Source

PatentUS10299724B2Wristwatch including an integrated pulse oximeter or other modules that sense physiological data
Publication Date: 2019.05.28 AMS OSRAM ASIA PACIFIC PTE LTD
  • US10299724B2 patent drawing
  • US10299724B2 patent drawing
  • US10299724B2 patent drawing

AI summary

A wristwatch includes a case containing electronic components of the wristwatch. An optoelectronic module including at least one light emitting element and at least one light sensing element is disposed within the case or within a fastener for the wristwatch. The optoelectronic module is operable to obtain physiological data of a person wearing the wristwatch by using the light emitting element and the light sensing element.