Portable Heat and Compression Therapy With Stable Temperature Control
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Solution Overview
Problem
Existing thermal treatment devices for medical conditions such as acute sports injuries and post-surgical situations are not portable, require significant supervision, and fail to maintain consistent temperature and pressure, leading to inconsistent patient compliance and ineffective therapy.
Innovation Solution
A portable device with a microprocessor-controlled system for timed temperature, pressure, and DVT prophylaxis, using thermoelectric modules (TEMs) for rapid temperature transitions and maintaining stability, combined with a shared fluid tank and air pressure control system for efficient and consistent therapy delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If ice bags are used for thermal treatment, then the treatment is inexpensive and simple to apply, but the ice bags shift, drip, lose coldness frequently, and require heavy supervision
Solution Approach 1:
The patent replaces the mechanical ice bag system with a thermoelectric module (TEM) that uses electrical current to generate cooling effects. This substitution eliminates the need for physical ice bags while providing controlled, consistent thermal treatment through electronic control mechanisms.
Solution Approach 2:
The device incorporates automated control systems including temperature sensors, microprocessors, and programmable timers that enable the system to self-regulate treatment parameters. This automation eliminates the need for heavy supervision while maintaining treatment consistency and allowing patients to use the device independently.
2Ease of operation
If commercial products with cooled water circulation are used, then less supervision is required, but peak thermal regimen is not maintained due to temperature fluctuations
Solution Approach 1:
The patent incorporates temperature sensors that continuously monitor the thermal treatment temperature and provide feedback to the control system. This closed-loop feedback mechanism allows the microprocessor to adjust the TEM operation in real-time, maintaining precise temperature control and stability throughout the treatment process.
Solution Approach 2:
The system uses dynamic control mechanisms where the microprocessor continuously adjusts the electrical current to the TEM based on real-time temperature readings. This dynamic adjustment capability enables the system to maintain peak thermal regimen stability while responding to changing treatment conditions.
3Manufacturing precision
If robust products with temperature control and timers are provided, then thermal treatment precision is improved, but the devices are not portable and are too expensive for home use
Solution Approach 1:
The patent employs a modular design where the thermoelectric module, control system, and power supply are integrated into a compact, portable unit. This segmentation allows the device to maintain hospital-grade temperature control precision while being small enough for home use and affordable for patients.
Solution Approach 2:
The system uses programmable parameters including adjustable treatment duration, temperature thresholds, and cycle timing that can be customized for different treatment protocols. This parameter flexibility allows a single portable device to replace multiple specialized equipment while maintaining treatment precision.
4Ease of manufacture
If Peltier devices with fluid reservoirs are used, then refrigeration is eliminated, but significant temperature fluctuation occurs due to large fluid mass and heat exchange
Solution Approach 1:
The patent extracts and eliminates the large fluid reservoir component from the thermal treatment system. By removing the bulk fluid storage, the system avoids the temperature fluctuations caused by large thermal mass and heat exchange, while the TEM provides direct solid-state cooling without requiring refrigeration infrastructure.
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
Ensures consistent and effective thermal and compression therapy, improving patient compliance by maintaining recommended treatment protocols and reducing thermal fluctuations, while being lightweight and user-friendly.
Implementation Method 1
TEM technology eliminated the need for refrigeration and heating elements
Implementation Method 2
a portable heat/cold therapy unit... using thermoelectric modules to maintain consistent temperature
Data Source
AI summary
A medical device providing a combination of thermal and DVT therapies to a patient. The components, arrangement of components, function of the device as a whole, and methods of use of the device are all devised to maximize therapeutic effectiveness. Effectiveness in this context is measured by the ability to provide a controlled application of the recommended thermal treatment including time, temperature, compression, and number of cycles with specified cycle duration.