Gas-Based Orthopedic Wrap Cooling System

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Solution Overview

Problem

Current cold therapy systems for orthopedic injuries are cumbersome, prone to leaks and condensation, and incompatible with electrical stimulation, leading to ineffective and unsafe therapy due to corrosion and temperature variations, while requiring frequent maintenance and causing physical strain.

Innovation Solution

A system using temperature-controlled gas delivered through a therapeutic orthopedic wrap with a thermoelectric device and integrated electrical stimulation, eliminating the need for water and reducing corrosion risks, providing a portable, efficient, and safe pain management solution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If water-based cooling systems are used, then cooling effectiveness is improved, but leakage and condensation problems occur leading to increased risk of infection and device damage

Engineering Contradiction:
Improvecooling effectivenessVSAvoidleakage and condensation
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The patent transitions from water-based hydraulic cooling to gas-based pneumatic cooling. The gas circulation system (claim 1) delivers temperature-controlled gas to the therapy site without the leakage and condensation problems inherent in water-based systems, eliminating the harmful effects while maintaining cooling effectiveness.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent uses an inert or non-condensing gas environment instead of water to perform the cooling function. This inert atmosphere approach prevents condensation and leakage issues that occur with water-based systems, as the gas does not form liquid condensate at therapy temperatures.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

2Adaptability or versatility

If electrical stimulation components are integrated, then deep tissue pain relief is improved, but corrosion and electrical safety issues occur due to water exposure

Engineering Contradiction:
Improvedeep tissue pain reliefVSAvoidcorrosion and electrical safety
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent creates an inert gas environment that protects electrical stimulation components from water exposure. The gas circulation system prevents moisture contact with electrodes and electronic components, eliminating corrosion risks and electrical safety hazards while enabling integrated electrical stimulation therapy.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

Solution Approach 2:

The patent introduces gas as an intermediary medium between the cooling system and the therapy site. This gas intermediary protects electrical components from direct water contact while still allowing effective heat transfer and electrical stimulation delivery to the tissue.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Temperature

If ice buckets are used for cold therapy, then cooling capability is improved, but portability and mobility are reduced due to weight and size

Engineering Contradiction:
Improvecooling capabilityVSAvoidportability
Core Design Contradiction:
TemperatureVSWeight of moving object

Solution Approach 1:

The patent replaces the mechanical ice bucket system with a gas-based thermal control system. Instead of physically transporting heavy ice and water, the system uses a portable gas circulation apparatus with integrated cooling mechanisms, dramatically reducing weight while maintaining cooling capability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a self-contained system where the cooling apparatus carries its own temperature control mechanisms. The gas circulation system includes integrated cooling elements that actively maintain temperature without requiring external ice replenishment, making the system self-sufficient and portable.

Inventive Principle:
Principle #25Self-service

4Temperature

If frequent ice replacement is performed, then temperature control is maintained, but therapy effectiveness is reduced due to interruptions and physical strain

Engineering Contradiction:
Improvetemperature controlVSAvoidtherapy effectiveness
Core Design Contradiction:
TemperatureVSProductivity

Solution Approach 1:

The patent implements a continuous gas circulation system that maintains constant temperature control without interruptions. The closed-loop gas circulation continuously delivers cooled gas to the therapy site and returns it to the cooling mechanism, eliminating the need for periodic ice replacement and ensuring uninterrupted therapy.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The patent creates a self-maintaining system where the cooling apparatus automatically regulates its own temperature. The integrated cooling mechanism continuously re-cools the circulating gas, eliminating the need for external intervention to replace ice or adjust temperature, thereby maintaining continuous effective therapy.

Inventive Principle:
Principle #25Self-service

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 offers a portable, efficient, and safe method for temperature-controlled therapy, enhancing pain management by combining gas-based fluid delivery with electrical stimulation, reducing maintenance needs and preventing corrosion, thus improving patient comfort and caregiver convenience.

Implementation Method 1

A system uses temperature-controlled gas delivered through a therapeutic orthopedic wrap with a thermoelectric device

Methodology Applied
Scientific EffectThermoelectric cooling: Peltier Effect

Data Source

PatentEP3162327B1Systems for providing temperature-controlled therapy
Publication Date: 2023.05.31 DJO LLC
  • EP3162327B1 patent drawingFigure 1~2
  • EP3162327B1 patent drawingFigure 3A~3C
  • EP3162327B1 patent drawingFigure 4A~5

AI summary

Systems and methods provide air or gas-based temperature-controlled medical devices. The systems and methods may be applied to provide therapy to a patient suffering orthopedic or other injuries. Air or other gas is temperature-controlled and adjusted to meet a patient's physical needs and delivered the patient therapy site through a temperature regulated system including a therapeutic orthopedic wrap. Feedback mechanisms allow the caregiver or the patient to adjust the temperature of the gas. Other fluids may also be used. The systems and methods permit use of electrotherapy for enhanced therapy and injury recovery.