Forehead Fluid Pad Control for Adaptive Core Temperature Regulation

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Solution Overview

Problem

Existing wearable thermoregulatory devices are bulky, restrictive, and fail to adapt to rapidly changing environmental conditions, lacking user-specific customization and efficient thermal regulation.

Innovation Solution

A portable, lightweight, and affordable smart cooling device with a microcontroller and temperature sensors that automatically adjusts thermal output by pumping fluid through a forehead membrane, featuring alarms for user alerts and easy disconnect systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If traditional wearable thermoregulatory devices are used, then thermal regulation function is provided, but the devices are bulky and restrictive

Engineering Contradiction:
Improvecore body temperature regulationVSAvoiddevice weight and bulk
Core Design Contradiction:
TemperatureVSWeight of moving object

Solution Approach 1:

The device is divided into separate functional modules: a cooling unit with coolant reservoir, a heating unit with heating element, temperature sensors positioned at multiple locations, and a control unit. This segmentation allows each component to be optimized independently and reduces overall bulk by eliminating the need for a single large integrated system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wearable device incorporates both cooling and heating capabilities in a single system, allowing it to provide thermoregulation in both hot and cold environments. The system can switch between cooling mode (using coolant circulation) and heating mode (using heating element), making it universally applicable across varying environmental conditions without requiring separate devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Temperature

If traditional thermoregulatory devices are used, then thermal regulation is provided, but they fail to adapt to rapidly changing environmental conditions

Engineering Contradiction:
Improvecore body temperature regulationVSAvoidadaptability to changing environmental conditions
Core Design Contradiction:
TemperatureVSAdaptability or versatility

Solution Approach 1:

The system continuously monitors core body temperature, skin temperature, and environmental temperature through multiple sensors. The control unit processes this feedback information in real-time and automatically adjusts the cooling or heating output accordingly. This closed-loop feedback mechanism enables the device to adapt rapidly to changing environmental conditions and maintain optimal thermoregulation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The device employs dynamic control where the cooling and heating outputs are continuously adjusted based on real-time temperature readings. The system can rapidly switch between different operational modes and intensity levels, providing adaptive thermoregulation that responds to rapidly changing environmental conditions rather than maintaining a static operational state.

Inventive Principle:
Principle #15Dynamics

3Temperature

If traditional thermoregulatory devices are used, then thermal regulation is provided, but they lack user-specific customization

Engineering Contradiction:
Improvecore body temperature regulationVSAvoiduser-specific customization
Core Design Contradiction:
TemperatureVSAdaptability or versatility

Solution Approach 1:

The device incorporates multiple temperature sensors positioned at different locations (core body temperature sensor, skin temperature sensors) to capture localized temperature variations. The control unit processes these localized measurements independently and applies targeted cooling or heating to specific body regions, providing user-specific customization based on individual thermal patterns and requirements.

Inventive Principle:
Principle #3Local quality

4Productivity

If automated temperature control is implemented, then thermal regulation efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvethermal regulation efficiencyVSAvoiddevice structural complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system automatically monitors temperature parameters and adjusts cooling/heating output without requiring user intervention. The control unit processes sensor data and autonomously regulates the thermoregulation function, improving efficiency by maintaining optimal temperature control continuously. This automation is achieved through straightforward control logic that compares sensor readings to target temperatures and adjusts output accordingly, avoiding excessive complexity.

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

Enhances comfort and adaptability, effectively regulating core body temperature in varying conditions, preventing heat stress or hypothermia with user-specific customization.

Implementation Method 1

a fluid cooling device including a thermoelectric cooler, a heatsink thermally coupled to the thermoelectric cooler

Methodology Applied
Scientific EffectPeltier effect: Peltier Effect

Implementation Method 2

a fluid pad positioned in a head mount to contact a forehead of a user... fluid hoses between the head cooling device and the fluid cooling device

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20250375313A1Head thermoregulatory apparatus
Publication Date: 2025.12.11 GROVE GRAHAM
  • US20250375313A1 patent drawing
  • US20250375313A1 patent drawing
  • US20250375313A1 patent drawing

AI summary

Head thermoregulatory apparatuses, related devices and methods, are disclosed herein. In some embodiments, a head thermoregulatory apparatus may include a core body temperature sensor; a head thermoregulatory device including a fluid pad, an input port, and an output port; a fluid device configured to heat or cool a fluid, the fluid device including the fluid, an input port, and an output port; fluid hoses between the head thermoregulatory device and the fluid device; a fluid valve coupled to the fluid hoses; and control circuitry coupled to the fluid valve and to the core body temperature sensor, wherein the control circuitry is configured to activate the fluid valve based on a determination that an absolute difference between a subsequent core body temperature and a baseline core body temperature exceeds a threshold. In some embodiments, the fluid device cools the fluid. In other embodiments, the fluid device heats the fluid.