Thermal Therapy Device Pliable Barrier

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Solution Overview

Problem

Conventional thermal therapy devices with hydrophilic absorbers suffer from clumping during extended freezing/thawing cycles, leading to reduced pliability and operational lifespan, as ice crystals bond together, causing the device to become rigid and less effective.

Innovation Solution

Incorporating planar polypropylene particulate as a physical barrier within the mixture of hydrophilic absorbers and hydrating liquid to prevent clumping, along with hydrophobic beads for increased thermal resistance, and a rigid storage container to allow expansion during freezing, ensuring the device remains pliable and functional over extended cycles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If discrete hydrophilic absorbers are used in thermal therapy devices, then the device can maintain pliability during freezing/thawing cycles, but the absorbers will eventually clump together after extended cycles, causing the device to become rigid

Engineering Contradiction:
ImprovepliabilityVSAvoidoperational lifespan
Core Design Contradiction:
Ease of operationVSDuration of action of stationary object

Solution Approach 1:

A hydrophobic barrier material is introduced as an intermediary substance between the hydrophilic absorbers. This barrier prevents direct contact between adjacent absorbers, blocking the mechanism by which they would otherwise bond together during freezing cycles. The hydrophobic material acts as a permanent separator that maintains absorber dispersion without interfering with the freezing/thawing functionality.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention creates a composite mixture containing three distinct components: hydrophilic absorbers, hydrophobic barrier material, and liquid solution. This composite structure combines materials with opposing properties (hydrophilic and hydrophobic) to achieve both desired functions: the hydrophilic absorbers enable freezing/thawing cycles while the hydrophobic barrier prevents clumping, extending device lifespan.

Inventive Principle:
Principle #40Composite materials

2Volume of stationary object

If the device is frozen in a crowded freezer, then storage space is optimized, but the discrete ice/absorber formations bond together into rigid clumps

Engineering Contradiction:
Improvestorage volumeVSAvoidabsorber dispersion
Core Design Contradiction:
Volume of stationary objectVSStability of the object's composition

Solution Approach 1:

The hydrophobic barrier material serves as a protective intermediary between absorbers, creating a physical and chemical barrier that prevents bonding even when external pressure from crowded freezer conditions forces absorbers into close proximity. This intermediary protection ensures absorber dispersion stability regardless of storage density.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Duration of action of moving object

If repeated freezing/melting cycles are performed, then extended usage is achieved, but the absorber material degrades and water flow control is diminished

Engineering Contradiction:
Improveusage cyclesVSAvoidwater flow control
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The hydrophobic barrier material acts as a protective intermediary that prevents direct interaction and bonding between absorbers during repeated cycles. By maintaining physical separation, the barrier preserves absorber structural integrity and water flow pathways even after extensive usage, sustaining reliable water flow control throughout the device lifespan.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The hydrophobic barrier material provides beforehand protection against the degradation mechanism (clumping) that would otherwise occur during repeated cycles. This preventive measure cushions the absorbers from direct contact and bonding, maintaining their functional properties throughout extended usage.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 solution extends the operational life of thermal therapy devices by preventing clumping and maintaining pliability, allowing for at least four times more usage compared to prior art devices, while ensuring safe and effective cold therapy application.

Implementation Method 1

the liquid water transitions from liquid to solid, the ice crystals forming on the exterior surface of the absorbers will tend to increase the overall volume of the mixture and therefore cause an expansion of the flexible container

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

when freezing the device to Kolen, the water retained within the hydrophilic absorbers migrates out and freezes in discrete white ice crystals

Methodology Applied
Scientific EffectFreezing: Freezing

Implementation Method 3

Incorporating planar polypropylene particulate as a physical barrier within the mixture of hydrophilic absorbers and hydrating liquid to prevent clumping

Methodology Applied
Scientific EffectPhysical barrier:

Implementation Method 4

along with hydrophobic beads for increased thermal resistance

Methodology Applied
Scientific EffectThermal resistance: Thermal Insulation

Data Source

PatentUS9039747B2Thermal therapy device
Publication Date: 2015.05.26 PROFESSIONAL PRODS
  • US9039747B2 patent drawing
  • US9039747B2 patent drawing
  • US9039747B2 patent drawing

AI summary

A thermal therapy device comprising a flexible, water-impermeable container containing a plurality of discrete, non-water-soluble hydrophillic absorbers, a hydrating liquid mixture comprising water, means for physically separating at least two adjacent absorbers thereby providing a means for preventing clumping, and a plurality of insulating members. The means for preventing clumping maintaining the pliability of the device in a frozen state after prolonged and extend cycles of freezing/thawing. A rigid storage container is also provided.