Patient Roller Bed Washing Frame for Bedsore Prevention
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Solution Overview
Problem
Bedridden, comatose, or paralyzed patients face challenges in preventing bedsores and maintaining hygiene due to inability to move or actively participate in repositioning and washing, which is difficult for caregivers to manage effectively.
Innovation Solution
A device featuring a frame with cylindrical rollers and a cover system that allows for the movement and washing of patients, utilizing a liquid receptacle and nozzles to distribute a pressurized aqueous solution, facilitating the redistribution of pressure and thorough cleaning without manual assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If caregivers manually move and wash bedridden patients, then hygiene can be maintained and bedsores prevented, but the workload and difficulty for caregivers increase significantly
Solution Approach 1:
The device enables bedridden patients to reposition themselves independently using the roller mechanism, eliminating the need for caregiver assistance in position changes. The patient can initiate and control the movement process themselves, transforming a caregiver-dependent task into a self-service function.
Solution Approach 2:
The manual mechanical effort required by caregivers to move and wash patients is replaced by an automated system combining rollers, water delivery mechanisms, and drainage systems. The device substitutes human physical labor with a mechanical automation system that performs both positioning and washing functions.
2Reliability
If patients are regularly repositioned to prevent bedsores, then pressure distribution improves, but the process becomes difficult when patients cannot actively cooperate
Solution Approach 1:
The device empowers completely immobile patients to independently control their repositioning through the roller mechanism, eliminating the need for any level of patient cooperation or muscle strength. The system adapts to total immobility by providing self-powered movement capability.
Solution Approach 2:
The system transforms from a static positioning system to a dynamic one where patients can continuously adjust their position. The rollers enable smooth, controlled movement that adapts to the patient's needs in real-time, allowing dynamic pressure redistribution throughout the day.
3Reliability
If manual washing of bedridden patients is performed, then hygiene can be maintained, but access to all body parts becomes difficult
Solution Approach 1:
The manual washing process is replaced by an automated water delivery system that uses nozzles to spray cleaning solution and a drainage system to remove waste water. This mechanical system eliminates the physical constraints of manual washing and provides comprehensive body coverage.
Solution Approach 2:
The washing system transitions from two-dimensional manual scrubbing to three-dimensional water delivery from multiple angles. Water is delivered from above and around the patient, enabling complete body coverage including previously inaccessible areas like the back and between toes.
4Reliability
If a comprehensive patient care device is implemented, then care quality improves, but device complexity increases
Solution Approach 1:
The device merges multiple care functions—repositioning, washing, and drainage—into a single integrated system. The rollers combine with water delivery nozzles and drainage channels to create a unified device that performs all essential care tasks simultaneously, reducing the need for multiple separate equipment pieces.
Solution Approach 2:
The device is designed as a universal care system that can handle both mobile and completely immobile patients, perform both repositioning and washing functions, and adapt to different care needs. This multi-functionality consolidates what would otherwise require multiple specialized devices into one system.
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 device effectively prevents bedsores by regularly moving patients and ensures thorough hygiene by allowing for the emission of a cleaning solution onto the patient's body, improving care for immobile individuals without requiring their active cooperation.
Implementation Method 1
the liquid is emitted from the liquid receiving chamber, via the plurality of nozzles, into the hollow, and flows from the hollow via the conduit to the liquid receptacle
Implementation Method 2
The rollers are adapted to enable rolling and moving of the human subject when the human subject is lying on the patient base
Data Source
AI summary
A device for caring for a human subject is disclosed. The device includes a frame including a base surfaces and side surfaces, and defining a hollow, and a liquid receptacle disposed beneath the frame. A conduit fluidly connects the hollow to the liquid receptacle. A cover is connected to the frame above the hollow. The cover includes a plurality of nozzles.