Wearable Compression Integument Using Shape Memory Materials
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Solution Overview
Problem
Current compression devices for enhancing blood flow and treating conditions like varicose veins and muscle soreness are bulky, restrictive, and require users to remain immobile, causing discomfort and limiting mobility.
Innovation Solution
A wearable compression integument using shape memory materials and elongated textiles with an on-board microprocessor to apply intermittent sequential compression, allowing users to remain mobile and comfortable during treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pneumatic compression devices with external pumps are used, then blood flow circulation is enhanced, but device bulk and user mobility are reduced
Solution Approach 1:
The patent removes the external pump component from the compression system, integrating only the necessary compression functionality into the wearable garment itself. This extraction of the bulky external pump while retaining the blood flow enhancement capability directly resolves the contradiction between circulation efficacy and user mobility.
Solution Approach 2:
The compression garment is designed to provide compression therapy autonomously without requiring external pump equipment or complex power systems. The garment serves itself by using the user's body movements and the material's inherent properties to deliver therapeutic compression, eliminating the need for external power sources and pumps.
2Force
If traditional compression stockings are used, then initial compression force is provided, but compression level decreases over time due to material deformation
Solution Approach 1:
The patent employs shape memory materials that can change their physical parameters (shape, stiffness, compression force) in response to external stimuli such as temperature or electrical signals. This allows the compression force to be dynamically adjusted and maintained at therapeutic levels throughout the day, counteracting the natural degradation that occurs with conventional elastic materials.
3Force
If plastic wrapping materials are used for compression, then compression is applied, but perspiration and discomfort increase
Solution Approach 1:
The patent utilizes composite materials that combine compression-providing structural elements with breathable, moisture-wicking textile layers. This composite construction maintains effective compression force while allowing air circulation and sweat evaporation, thereby reducing perspiration-related discomfort and making the garment suitable for extended wear during daily activities.
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 enhances blood flow circulation without the need for external pumps, reducing perspiration and discomfort, and allowing users to engage in daily activities while providing the same efficacy as pneumatic devices.
Implementation Method 1
A wearable compression integument using shape memory materials and elongated textiles with an on-board microprocessor to apply intermittent sequential compression
Data Source
AI summary
A compression integument for applying controllable intermittent sequential compression to the limbs of a user comprises an elongated fabric body sized to encircle a limb of a user, one or more compressible pads affixed to a surface of the fabric body facing the limb when the fabric body is wrapped around the limb; one or more tensioning elements integrated into the fabric body or compressible pads and arranged to encircle the limb when the fabric body is wrapped around the limb, and a micro-processor based actuator for selectively actuating the one or more tensioning elements to reduce the effective diameter of the tensioning elements encircling the limb, to thereby apply pressure to the limb by way of the compressible pads.