Pressure-Sensing Support Surface for Automatic Bedsore Prevention
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Solution Overview
Problem
Current support structures for patients, such as beds and chairs, lack the ability to automatically adjust based on real-time pressure monitoring, leading to a high risk of pressure injuries like bedsores, especially in immobile patients, as they cannot respond to changing pressure conditions dynamically.
Innovation Solution
A system that incorporates RF addressable pressure sensors to continuously monitor pressure points on a patient's body and adjusts the support structure accordingly through a networkable device connected to actuators, allowing for remote monitoring and data logging, enabling healthcare providers to intervene promptly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual or programmable adjustable cushion sections are used, then the support structure can be adjusted to some extent, but the system cannot automatically adjust based on real-time patient condition feedback
Solution Approach 1:
The system incorporates pressure sensors that continuously monitor pressure distribution on the patient's body and feed this information back to a controller. The controller automatically adjusts the support structure based on this real-time feedback, enabling dynamic adaptation to changing patient conditions without manual intervention.
Solution Approach 2:
The support structure performs self-adjustment through automated control systems that respond to sensor data. The system monitors its own performance and makes necessary adjustments independently, reducing the need for manual operation while maintaining optimal pressure distribution.
2Reliability
If frequent manual repositioning of patients is performed, then pressure distribution can be improved, but this method is highly time consuming for medical facilities
Solution Approach 1:
The support structure automatically monitors and adjusts pressure distribution without requiring manual patient repositioning. The integrated sensor system continuously detects pressure points and the control system dynamically adjusts cushion sections to maintain optimal pressure distribution, eliminating the need for frequent manual intervention.
Solution Approach 2:
The system provides continuous pressure monitoring and adjustment rather than periodic manual repositioning. The sensors operate continuously to detect pressure changes, and the control system continuously adjusts the support structure, ensuring uninterrupted protection against pressure injuries.
3Reliability
If fixed quantity of air or liquid in chambers is used, then therapeutic benefits are provided, but the system cannot respond to changing pressure conditions dynamically
Solution Approach 1:
The support structure transitions from static fixed-volume chambers to dynamic adjustable chambers. The control system varies the volume of air or liquid in different cushion sections based on real-time pressure sensor feedback, allowing the support structure to adapt dynamically to changing patient positions and pressure conditions while maintaining therapeutic benefits.
Data Source
AI summary
A method for monitoring pressure at one or more points on an individual and automatically adjusting one or more sections of a support structure. The method includes periodically receiving pressure data from one or more radio frequency addressable sensors placed on an individual; determining, based on the received pressure data, whether an adjustment in the support structure is required; systematically adjusting cells located within the plurality of zones, one zone at a time, until an improvement in pressure data is indicated. If an improvement in pressure data is indicated for a zone, systematically adjusting cells within the plurality of subzones for that zone, one subzone at a time, until an improvement in pressure data is indicated. If an improvement in pressure data is indicated for a subzone, systematically adjusting cells in that subzone, one cell at a time, until an improvement in pressure data is indicated.