Inflatable seat cushion
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Solution Overview
Problem
Conventional seating solutions for individuals with mobility challenges, such as those using wheelchairs, often lead to discomfort and pressure sores due to inadequate distribution of pressure points, and existing solutions are cumbersome and difficult to operate.
Innovation Solution
An inflatable seat cushion system comprising a base with a bladder and a control assembly, featuring multiple chambers and valve assemblies, allowing for controlled inflation and deflation to redistribute pressure, with a user-friendly interface for adjusting pressure points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional seating solutions are used, then the structure is simple, but pressure distribution is inadequate leading to discomfort and sores
Solution Approach 1:
The seating system is divided into multiple independent inflatable chambers (first chamber, second chamber, third chamber) that can be controlled separately. Each chamber can be inflated or deflated independently to dynamically redistribute pressure across different body contact areas, preventing pressure sores while maintaining manageable system complexity through modular design
Solution Approach 2:
The system transitions from static conventional seating to dynamic adjustable seating by incorporating inflatable chambers that can change volume in real-time. The chambers can be inflated or deflated based on user needs, allowing the seating surface to adapt and redistribute pressure dynamically, thereby eliminating pressure points without requiring complex rigid mechanical structures
2Object-affected harmful factors
If existing pressure redistribution solutions are implemented, then pressure points are varied, but the solutions are cumbersome and difficult to operate
Solution Approach 1:
The system incorporates automated control mechanisms where the inflation and deflation of chambers can be controlled through a user-friendly interface or automated sequence. The controller manages the complex operations of multiple chambers, reducing user burden while still achieving effective pressure redistribution. Users simply need to activate the system rather than manually adjust complex mechanical components
Solution Approach 2:
The system uses pneumatic inflation and deflation mechanisms controlled by valves and pumps, replacing cumbersome mechanical adjustment systems. The inflatable chambers can be rapidly adjusted using air pressure control, providing easy operation through simple activation while achieving smooth pressure redistribution without complex mechanical linkages or manual adjustments
3Object-affected harmful factors
If multiple chambers are added to redistribute pressure, then pressure distribution improves, but device complexity increases
Solution Approach 1:
The seating surface is segmented into multiple inflatable chambers (first, second, and third chambers) positioned at different locations to target specific pressure areas. Each chamber can be independently controlled, allowing precise pressure distribution across different body contact points while maintaining modular architecture that manages overall system complexity through standardized repeating units
Solution Approach 2:
The inflatable chamber design serves multiple functions simultaneously: pressure redistribution, cushioning, and adaptive contouring. The same chamber structure that provides pressure relief also provides comfort cushioning and can be controlled through a unified system, reducing the need for separate components and thereby managing complexity while achieving superior pressure distribution
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 provides enhanced comfort by dynamically redistributing pressure, minimizing the risk of discomfort and sores, while being easier to install and operate compared to existing solutions.
Implementation Method 1
The control assembly includes a housing, a pump and a first valve assembly. The pump is positioned within the housing and has an outlet.
Implementation Method 2
The first valve assembly has an actuator, an inlet, a vent outlet and a bladder outlet. The inlet is coupled to the outlet of the pump. The actuator is structurally configured to place the inlet into fluid communication with the bladder outlet and the vent outlet into fluid communication with the bladder outlet.
Implementation Method 3
extended seating often results in the same portion of the body experiencing pressure. This can lead to discomfort, bed sores and infection. By varying the position of the pressure points, such problems can be minimized if not outright avoided.
Data Source
AI summary
An inflatable seat cushion comprising a cushion assembly and a control assembly. The cushion assembly has a base and a bladder. The base has a top surface and a bottom surface and a controller cavity. The bladder has a chamber and is positionable on the top surface of the base. The chamber has an inlet. The control assembly is within the controller cavity and has a housing, a pump and a first valve assembly. The pump is positioned within the housing and has an outlet. The first valve assembly has an actuator, an inlet, a vent outlet and a bladder outlet. The inlet coupled to the outlet of the pump. The actuator can place the inlet into communication with the bladder outlet and the vent outlet into communication with the bladder outlet. The bladder outlet of the first valve assembly is in communication with the inlet of the bladder.