Sensor Stylus Touchscreen Assessment for Precise Movement Scoring

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Solution Overview

Problem

Traditional assessment methods for movement disorders are subjective and lack the precision and data-driven insights provided by modern technology, hindering effective clinical and research evaluations.

Innovation Solution

A handheld stylus equipped with sensors such as accelerometers, gyroscopes, and force sensors that interact with a touchscreen device to record and analyze movement data, allowing for the calculation of performance scores and determination of treatment plans.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional subjective tests and analog equipment are used for movement assessment, then the assessment process is simple and equipment is readily available, but the precision and objectivity of measurement are insufficient

Engineering Contradiction:
Improvemovement assessment precisionVSAvoidassessment system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The handheld stylus device integrates multiple functions including motion sensing, force sensing, touchscreen interaction, and wireless communication into a single universal tool. This multi-functional design enables precise movement assessment without requiring multiple separate devices, thereby improving measurement precision while keeping the system relatively simple and accessible

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

Solution Approach 2:

The patent replaces traditional mechanical analog assessment equipment with electronic sensors (accelerometers, gyroscopes, force sensors) that provide digital, objective measurements. This substitution enables precise quantification of movement parameters while maintaining ease of use through familiar touchscreen interfaces

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

2Loss of information

If handheld device with multiple sensors is used, then measurement precision and data detail are improved, but device complexity and cost increase

Engineering Contradiction:
Improvemovement data detailVSAvoidhandheld device complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent combines multiple sensor types (accelerometers for linear acceleration, gyroscopes for rotational movement, force sensors for contact pressure) into a single integrated handheld stylus. This merging of sensing capabilities captures comprehensive movement data without requiring multiple separate devices, reducing overall system complexity while maximizing information capture

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The stylus serves multiple functions: it interacts with touchscreen displays for task administration, captures motion data through inertial sensors, measures force through contact sensors, and wirelessly transmits data. This multi-functionality maximizes the information captured from a single device rather than requiring specialized equipment for each measurement type

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 system provides objective and detailed movement assessments, enabling more accurate diagnosis and treatment of movement disorders, as well as other conditions like autism and heart diseases, by capturing precise motion and position data.

Implementation Method 1

the one or more sensors are configured to detect motion and position of the stylus

Methodology Applied
Scientific EffectAccelerometer: Accelerometer

Implementation Method 2

the one or more sensors are configured to detect motion and position of the stylus

Methodology Applied
Scientific EffectGyroscope: Gyroscope

Implementation Method 3

the one or more sensors include a force sensor configured to detect a force applied to the stylus by a hand or a finger of the user

Methodology Applied
Scientific EffectForce sensing: Force

Data Source

PatentUS11793464B2Handheld stylus and base and methods of use
Publication Date: 2023.10.24 CERAXIS HEALTH INC
  • US11793464B2 patent drawing
  • US11793464B2 patent drawing
  • US11793464B2 patent drawing

AI summary

The present disclosure provides methods and devices for assessing movement. In some exemplary embodiments, a system for assessing movement is provided. In some embodiments, the system includes a handheld device. In some embodiments, the handheld device includes a plurality of sensors configured to record motion and position data, a body having a plurality of sides, a battery, and a proximal end configured to interact with a touchscreen of a computing device.