Tilt-tip moldable total care bed
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Solution Overview
Problem
Conventional hospital beds lack functionality to relieve pressure from sustained areas, assist in bathing, and manage waste, leading to physical strain on caregivers and discomfort for immobilized patients, who are prone to pressure ulcers and skin issues.
Innovation Solution
A tilt-tip moldable bed system featuring a mattress with a bladder and beads that conforms to the patient's shape, allowing for pressure relief and easy cleaning, combined with a supporting frame and gimballing base for movement and rotation, facilitating caregiver tasks and patient comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional hospital beds are used, then the bed structure is simple and easy to manufacture, but the bed cannot relieve pressure from sustained areas and lacks functionality to assist in bathing and waste removal
Solution Approach 1:
The mattress is designed to perform multiple functions: pressure relief through moldable contours, bathing assistance through fluid evacuation, and waste management through pump systems. This multi-functionality resolves the contradiction by making a single device capable of diverse medical care tasks that previously required multiple separate systems
Solution Approach 2:
The mattress incorporates nested components including a bladder system within the mattress structure, pump lines integrated into the mattress layers, and evacuation tubes embedded within the foam. This nesting approach allows complex functionality to be contained within a relatively simple external bed structure
2Productivity
If caregivers manually lift and turn immobilized individuals, then the bed structure remains simple, but caregivers experience physical injury and the process is time-consuming
Solution Approach 1:
The moldable mattress automatically adjusts to the patient's body shape and redistributes pressure without requiring caregiver intervention. The mattress self-molds to pressure points and creates pressure-relief contours, enabling the patient support function to serve itself rather than requiring manual repositioning by caregivers
Solution Approach 2:
The mattress transitions from a static conventional structure to a dynamic moldable surface that can change its contours in response to patient positioning and pressure distribution needs, allowing adaptive pressure relief without manual intervention
3Reliability
If the mattress uses a moldable structure with bladder and beads, then pressure redistribution is effective, but the mattress complexity and manufacturing difficulty increase
Solution Approach 1:
The mattress uses a pneumatic bladder system filled with fluid and containing beads that can be inflated and evacuated to create moldable pressure-relief contours. This pneumatic mechanism provides reliable pressure redistribution while using well-established manufacturing techniques for inflatable structures
Solution Approach 2:
The mattress combines multiple materials and components: foam layers, fluid-filled bladder, beads, pump lines, and evacuation tubes. This composite construction integrates the moldable pressure-relief functionality with durable support structures, balancing manufacturing feasibility with therapeutic effectiveness
4Ease of operation
If the bed includes tilt-tip and gimballing base features, then patient repositioning and caregiver access are improved, but the device complexity and cost increase
Solution Approach 1:
The supporting frame incorporates a gimballing base with tilt-tip capability that allows dynamic adjustment of the bed to multiple positions. This dynamic positioning system enables easy patient repositioning and caregiver access while using mechanical linkages and joints that provide motion control
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 system effectively reduces pressure ulcers by redistributing weight, simplifies patient care through easy movement and cleaning, and reduces caregiver strain by enabling efficient adjustment and repositioning of patients.
Implementation Method 1
a fluid medium, such that the casing is moldable when inflated, and maintains a resilient shape when an actuating volume of the fluid medium is evacuated
Implementation Method 2
the casing compresses the plurality of beads to maintain a shape of the displacement by the displacing structure when an actuating volume of the fluid medium is evacuated
Implementation Method 3
a gimballing base for movement and rotation, facilitating caregiver tasks and patient comfort
Data Source
AI summary
A tilt-tip moldable bed system for the care of immobile patients is provided. The bed system may include a moldable mattress having a casing with a bladder defining an inner volume and a top compliant surface over a top surface of the bladder, the compliant surface configured to conform to a shape of a displacing structure. The bladder may be configured to hold a plurality of beads suspended in a fluid medium. The moldable mattress may be molded while inflated and maintain a resilient shape when evacuated. The system may further include a supporting frame for the moldable support structure having a laterally rigid outer rim with at least one attachment point for the moldable mattress, at least one attachment point for a netted sling, and one or more mounting tracks configured to support at least one peripheral attachment.