Flexible Pressure Sensor Array for Continuous Bedside Monitoring
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Solution Overview
Problem
Current methods for preventing pressure injuries in hospitalized patients are limited, with manual repositioning protocols lacking evidence-based support and existing monitoring systems being either expensive or inaccurate, failing to account for individual patient characteristics and providing inadequate pressure point-specific readings.
Innovation Solution
A continuous bedside pressure monitoring (CBPM) device featuring a flexible array of pressure sensors, a controller, and a communication interface, housed in a water-resistant flexible housing, which continuously monitors tissue pressures and wirelessly alerts clinicians to critical pressure levels, enabling evidence-based offloading and reducing the incidence of pressure ulcers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual repositioning protocols are used, then nursing workflow integration is improved, but measurement precision and reliability of pressure monitoring deteriorate
Solution Approach 1:
The pressure monitoring system automatically monitors pressure at risk locations and triggers alerts without requiring nursing intervention for assessment, enabling the system to serve itself in detecting pressure issues while nurses focus on intervention
Solution Approach 2:
Manual pressure assessment and repositioning decisions are replaced with an electronic sensor-based system that continuously monitors pressure and provides objective data, substituting mechanical/manual methods with electronic automation
2Measurement precision
If special pressure sensing beds are used, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
Instead of requiring complete replacement of the bed with a complex pressure sensing system, the invention segments the monitoring function into discrete, localized sensors placed only at specific anatomical risk locations, reducing overall system complexity
Solution Approach 2:
The system uses inexpensive, disposable pressure-sensitive materials or sensors that can be applied to the patient, eliminating the need for expensive, complex, and difficult-to-maintain electronic pressure mapping beds
3Device complexity
If threshold-based pressure monitoring is used, then device complexity is reduced, but measurement precision and reliability deteriorate
Solution Approach 1:
The system applies different monitoring thresholds and alert criteria to different anatomical locations based on their specific pressure ulcer risk profiles, allowing localized optimization of detection precision without increasing overall system complexity
4Ease of operation
If standardized repositioning protocols are used, then ease of operation is improved, but adaptability to individual patient characteristics deteriorates
Solution Approach 1:
The monitoring system dynamically adjusts alert thresholds and repositioning recommendations based on real-time pressure data from each patient, allowing the system to adapt to individual patient characteristics while maintaining ease of operation through automated adjustments
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 CBPM device effectively reduces pressure ulcer incidence by providing individualized, evidence-based interventions, surpassing the limitations of existing systems in accuracy and cost-effectiveness, potentially making pressure injuries a 'never event' by integrating with clinical algorithms for real-time patient monitoring.
Implementation Method 1
an array of pressure sensors configured to obtain pressure readings over the anatomical region underlying the patch
Data Source
AI summary
A continuous bedside pressure monitoring (CBPM) device includes an array of pressure sensors, a controller including a processor and a memory, the controller operatively coupled to the array of pressure sensors, a communication interface operatively coupled to the controller, and a flexible housing enclosing the array of pressure sensors, the controller, and the communication interface.