Orthopedic Offloading Monitoring for Patient Compliance Feedback

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Solution Overview

Problem

Existing pressure ulcer management systems fail to provide insights into patient compliance with offloading devices, leading to delayed healing and potential worsening of diabetic foot ulcers due to non-compliance.

Innovation Solution

A monitoring apparatus and system that includes an elongate conduit with a pressure sensor and controller to detect weight distribution and activity classification, providing real-time feedback on compliance with offloading devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If offloading devices are used to treat pressure ulcers, then healing is promoted, but patient non-compliance leads to delayed healing

Engineering Contradiction:
Improvehealing effectivenessVSAvoidpatient compliance information
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system incorporates sensors (pressure, motion, accelerometer) that continuously monitor patient usage of offloading devices and provide real-time feedback to both the patient and healthcare providers. This feedback mechanism enables patients to understand their compliance level and motivates them to adhere to the treatment protocol, thereby resolving the contradiction between promoting healing and addressing non-compliance.

Inventive Principle:
Principle #23Feedback

2Loss of information

If monitoring systems are added to track patient compliance, then compliance insight is provided, but device complexity increases

Engineering Contradiction:
Improvecompliance informationVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The monitoring system integrates multiple functions into a single unified platform that simultaneously tracks pressure distribution, motion data, and patient activity levels. By combining these monitoring capabilities in one system rather than using separate devices, the solution provides comprehensive compliance information while minimizing the increase in overall device complexity.

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

3Loss of information

If real-time monitoring is implemented, then compliance feedback is provided, but energy consumption increases

Engineering Contradiction:
Improvereal-time compliance dataVSAvoidenergy consumption
Core Design Contradiction:
Loss of informationVSUse of energy by moving object

Solution Approach 1:

The monitoring system employs periodic sampling of sensor data at optimized intervals rather than continuous monitoring, balancing the need for real-time compliance feedback with energy conservation. The system adjusts sampling frequency based on activity levels and clinical needs, providing timely compliance information while minimizing energy consumption from constant sensor operation and data transmission.

Inventive Principle:
Principle #19Periodic action

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

Enhances patient compliance by providing real-time feedback on weight distribution and activity, thereby improving the prevention and healing of pressure ulcers.

Implementation Method 1

The pressure sensor can measure a pressure within the internal volume

Methodology Applied
Scientific EffectPressure measurement:

Data Source

PatentUS12484840B2System for offloading a limb
Publication Date: 2025.12.02 T J SMITH & NEPHEW
  • US12484840B2 patent drawing
  • US12484840B2 patent drawing
  • US12484840B2 patent drawing

AI summary

Embodiments of systems and methods for monitoring use of an orthopedic device are at least disclosed. In some embodiments, the system can include an orthopedic device, a housing, and a controller. The orthopedic device can provide support to a limb of an individual. The orthopedic device can include a magnet configured to generate a magnetic field. The housing can attach to the individual, and the housing can support a magnetometer configured to generate a signal responsive to the magnetic field. The controller can determine from the signal whether the individual is using the orthopedic device to provide support to the limb and accordingly output usage indications.