3D Body Scan Support Device for Custom Fit and Hygiene
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Solution Overview
Problem
Existing support and protective devices for body parts are not adaptable to complex shapes, lack hygiene, and do not allow for air circulation, making them unsuitable for long-term use and difficult to apply to various body sizes and weights.
Innovation Solution
A method using 3D image processing to create a digital model of the body part, which is then used to control machines for the automatic production of a support device with adjustable straps and deformable elements, allowing for precise adaptation to the body's contour and easy application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plaster cast is used for fixation, then immobilization is achieved, but hardening time is long and weight is high
Solution Approach 1:
The patent uses a lightweight plastic shell that copies the essential immobilization function of traditional plaster casts without requiring hardening time. The shell is pre-formed and directly applied to the body part, eliminating the time-consuming hardening process while maintaining structural integrity and immobilization effectiveness.
Solution Approach 2:
The patent changes the material parameter from traditional plaster to lightweight plastic, which fundamentally alters the physical properties including weight reduction and elimination of hardening time. This material substitution allows the device to be immediately functional upon application.
2Reliability
If plaster cast is used for fixation, then immobilization is achieved, but weight is high
Solution Approach 1:
The patent creates a functional copy of the plaster cast using lightweight plastic material that replicates the immobilization capability while reducing weight by a factor of 5-10 times compared to traditional plaster casts.
Solution Approach 2:
The patent employs composite material structures combining rigid plastic elements for immobilization with flexible components for comfort, achieving optimal weight-strength ratio that maintains immobilization effectiveness while minimizing weight.
3Loss of time
If cast bandage is used, then hardening time is reduced and weight is lowered, but drying of skin becomes difficult
Solution Approach 1:
The patent uses a thin, flexible plastic shell design that allows air circulation between the shell and the body part, preventing moisture accumulation and skin drying issues associated with traditional cast bandages while maintaining immobilization function.
4Ease of manufacture
If fixed design of support device is used, then manufacturing is simple, but adaptability to complex body shapes is poor
Solution Approach 1:
The patent employs adjustable support elements and flexible fixing mechanisms that can be dynamically configured to match various body shapes and sizes, allowing a single basic design to adapt to diverse anatomical requirements without complicating manufacturing.
Solution Approach 2:
The patent divides the support device into modular segments that can be independently adjusted and positioned to conform to complex body contours, maintaining manufacturing simplicity while achieving high adaptability through modular assembly.
5Device complexity
If traditional support device is used, then structure is simple, but air circulation is impeded
Solution Approach 1:
The patent uses a thin-shell design with intentional ventilation openings and breathable material properties that maintain structural simplicity while enabling effective air circulation to prevent skin irritation and promote healing.
Data Source
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Figure 2
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AI summary
In order to produce a supporting or protective device (1) for a body part, which supporting or protective device has at least one supporting or protective part (2), the shape of which is adapted to the body part and which can be fastened to the body part by means of a fastening device (4), image data of the body part are recorded and are evaluated using computing means (19) in order to determine a 3-D model (13), and control data for the shape adaptation of the supporting or protective part (2) are derived from the 3-D model.