Patient Position Sensor System for Pressure Ulcer Prevention
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Solution Overview
Problem
Current systems fail to reliably detect and manage pressure-induced ischemia and pressure ulcers by inadequately monitoring surface pressure distribution and cumulative pressure-time index at specific body regions, limiting their ability to prevent and treat these conditions effectively.
Innovation Solution
A system comprising sensors that monitor patient position, orientation, and movement, communicating with a host system to optimize surface pressure at compromised tissue areas, using body surface markers to focus pressure-relieving maneuvers and promote blood circulation and airflow, thereby preventing and treating pressure ulcers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure management is implemented to prevent pressure ulcers, then tissue perfusion is improved, but patient mobility is reduced due to immobilization
Solution Approach 1:
The system enables automated monitoring and management of pressure distribution, allowing the support surface to self-adjust pressure application based on detected patient position and pressure patterns, reducing the need for manual intervention while maintaining pressure ulcer prevention
Solution Approach 2:
The system continuously monitors pressure distribution and patient position, providing real-time feedback to adjust pressure management strategies, enabling dynamic adaptation to patient needs while maintaining prevention effectiveness
2Reliability
If frequent patient repositioning is performed to relieve pressure, then pressure ulcer risk is reduced, but treatment time and caregiver workload increase
Solution Approach 1:
The system proactively identifies pressure buildup patterns and predicts potential pressure ulcer development, enabling preventive pressure relief actions before actual tissue damage occurs, reducing the need for frequent reactive repositioning
Solution Approach 2:
The system replaces manual mechanical repositioning with an automated pressure management system that uses sensors and controlled pressure application to achieve pressure relief, reducing caregiver physical workload and time requirements
3Measurement precision
If comprehensive pressure monitoring is implemented at multiple body regions, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The monitoring system is divided into multiple independent sensor regions that each monitor specific body areas, allowing precise local pressure detection while keeping each sensor unit simple and manageable
Solution Approach 2:
The sensor system is designed to perform multiple functions including pressure detection, position monitoring, and pattern recognition, reducing the need for separate specialized devices and simplifying the overall system architecture
Data Source
AI summary
A system for monitoring medical conditions including pressure ulcers, pressure-induced ischemia and related medical conditions comprises at least one sensor adapted to detect one or more patient characteristic including at least position, orientation, temperature, acceleration, moisture, resistance, stress, heart rate, respiration rate, and blood oxygenation, a host for processing the data received from the sensors together with historical patient data to develop an assessment of patient condition and suggested course of treatment, including either suspending or adjusting turn schedule based on various types of patient movement. The sensor can include one or more of bi-axial or tri-axial accelerometers, magnetometers and altimeters as well as resistive, inductive, capacitive, magnetic and other sensing devices, depending on whether the sensor is located on the patient or the support surface, and for what purpose. In some embodiments, the sensor can be self-contained in that it can detect orientation and suggest repositioning independent of a host.