Portable Limb Pocket Heating for Remote Marine Envenomation

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Solution Overview

Problem

Existing treatments for marine envenomation are impractical or unfeasible in remote outdoor environments, leading to prolonged pain and increased risk of infection due to delayed application of heated sterile solutions.

Innovation Solution

A portable limb receiving device with a heating compartment using a flameless reactive chemical exothermic reaction to heat a sterile solution for immediate pain relief and infection prevention, featuring a flexible pocket for the limb and a chemical exothermic reaction to generate heat.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional heating methods (flammable or electrical) are used to heat sterile solution, then therapeutic temperature can be achieved, but the system becomes unsuitable for remote outdoor environments and increases safety risks

Engineering Contradiction:

Improvesuitability for remote outdoor environmentsVSAvoidsafety risks from flammable or electrical heat sources

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces traditional mechanical heating systems (flammable heat sources or electrical heating elements) with a chemical heating system based on exothermic chemical reactions. This substitution eliminates safety risks associated with fire and electricity while maintaining the ability to heat sterile solution to therapeutic temperatures in remote outdoor environments.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental parameter of heat generation from physical processes (combustion or electrical resistance) to a chemical process (exothermic reaction). This parameter change enables safe use in environments where flammable and electrical sources are prohibited, while still achieving the required therapeutic temperature range.

Inventive Principle:

Principle #35Parameter changes

2Loss of time

If heated sterile solution is not applied immediately, then pain relief and infection prevention are delayed, but preparing heated solution in remote environments is impractical

Engineering Contradiction:

Improvedelay in treatment applicationVSAvoidpracticality of heating preparation in remote environments

Core Design Contradiction:

Loss of timeVSEase of operation

Solution Approach 1:

The patent incorporates pre-packaged reactive components that are prepared in advance for immediate use. When activated, these components rapidly generate heat through exothermic reactions, eliminating the need for complex heating preparation in the field and enabling immediate treatment application.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The chemical heating system is self-contained and self-activating, requiring no external power sources, fuel storage, or complex operational procedures. The reactive components self-generate heat when activated, making the system as easy to operate as traditional first aid treatments while eliminating preparation delays.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If a portable treatment system is used, then immediate treatment is possible in remote environments, but the system must eliminate flammable and electrical heat sources

Engineering Contradiction:

Improveportability for remote useVSAvoidability to maintain therapeutic temperature

Core Design Contradiction:

Adaptability or versatilityVSTemperature

Solution Approach 1:

The patent fundamentally changes the heat generation mechanism from physical processes to chemical processes, enabling portable operation without flammable or electrical components while maintaining therapeutic temperature capabilities through controlled exothermic reactions.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces mechanical heating systems with a chemical system that generates heat through exothermic reactions. This substitution maintains the ability to achieve and sustain therapeutic temperatures while enabling true portability for remote outdoor use without safety risks.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

Provides immediate and effective treatment for marine envenomation by heating a sterile solution to a therapeutic temperature, reducing pain and preventing infection without requiring flammable or electrical heat sources, suitable for use in various environments.

Implementation Method 1

activating a chemical exothermic reaction between two or more flameless reactive components within a heating compartment of the limb receiving device

Methodology Applied

Scientific EffectExothermic reaction: Exothermic Reaction

Implementation Method 2

the heating compartment is in thermal contact with the pocket, and wherein the chemical reaction generates heat for heating the sterile liquid within the pocket

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS12496231B1Treatment system for post marine envenomation

Publication Date: 2025.12.16 JOHNSON DANIEL W

AI summary

A system for treating an injured area of a limb comprises inserting the limb into a pocket of a limb receiving device; pouring a sterile liquid into the pocket to submerge the injured area; and activating a chemical exothermic reaction between two or more flameless reactive components within a heating compartment of the limb receiving device, wherein the heating compartment is in thermal contact with the pocket, and wherein the chemical reaction generates heat for heating the sterile liquid within the pocket.