Cushion
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Solution Overview
Problem
Conventional cushions fail to provide sufficient support for individuals with a sedentary lifestyle or paralyzed lower limbs, leading to prolonged pressure on hipbones and compromised blood circulation, which can result in bedsores.
Innovation Solution
A cushion design comprising a foam pad with a sunken portion, a pocket-shaped envelope with Velcro fasteners, and a support pad set including upper and lower foam pads and a soft gel pad, which provides adjustable support and pressure relief by distributing weight ergonomically and reducing shear force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cushion is used, then it provides basic comfort, but it fails to provide sufficient support for users with sedentary lifestyle or paralyzed lower limbs, leading to prolonged pressure on hipbones
Solution Approach 1:
The cushion is divided into multiple functional zones: a first region with higher softness for the sacrum and lower back, a second region with lower softness for the hipbones, and a third region with medium softness for the buttocks. This segmentation allows each region to provide appropriate support and pressure distribution for different body parts, effectively preventing prolonged pressure on hipbones while maintaining overall comfort.
Solution Approach 2:
Different regions of the cushion have different softness characteristics tailored to specific anatomical needs. The first region (higher softness) accommodates the sacrum and lower back, the second region (lower softness) provides firm support for hipbones, and the third region (medium softness) supports the buttocks. This local differentiation optimizes pressure distribution and blood circulation for each body part.
2Adaptability or versatility
If a single-softness cushion is used, then it is simple in structure, but it cannot provide multiple degrees of support for different body parts
Solution Approach 1:
The cushion is divided into three distinct regions with different softness levels, each targeting specific body parts. This segmentation enables the cushion to provide multiple degrees of support simultaneously, adapting to the varying anatomical requirements of the sacrum, hipbones, and buttocks without requiring multiple separate cushions.
Solution Approach 2:
The cushion employs composite material construction with different foam densities or compositions in each region. The first region uses higher softness material for pressure relief, the second region uses lower softness material for structural support, and the third region uses medium softness material for comfort, creating a multi-functional cushion from a single integrated structure.
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 cushion offers customizable support and pressure relief, effectively reducing the risk of bedsores by promoting optimal posture and blood circulation, while allowing easy cleaning and customization of the softness levels.
Implementation Method 1
a soft gel pad, which provides adjustable support and pressure relief by distributing weight ergonomically and reducing shear force
Implementation Method 2
The support pad set includes an upper foam pad, a lower foam pad, and a soft gel pad
Data Source
AI summary
Provided is a cushion including a pad, an envelope, and a support pad set. The pad has a sunken portion. The envelope is disposed on the pad. The envelope has a pocket-shaped body. A plurality of coupling portions is disposed at edges of the body. The support pad set includes an upper foam pad, a lower foam pad, and a soft gel pad. The support pad set is disposed in the body of the envelope.