Portable IV Fluid Heater Power Pack With Overheat Feedback Control

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Solution Overview

Problem

There is a need for a portable and lightweight power source for heating intravenous fluids outside of medical facilities, as existing solutions are not readily available or practical for use in such settings.

Innovation Solution

A portable power supply system utilizing lithium-ion cells, a controller, and a heating element, where the controller monitors and limits electrical energy input to prevent overheating, and includes a charging circuit to adapt input voltages and display charging status, integrated into a lightweight housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If a portable power source is used for heating IV fluids outside medical facilities, then portability and lightweight design are improved, but power reliability and safety control become more difficult to ensure

Engineering Contradiction:
Improvepower source weightVSAvoidheating safety
Core Design Contradiction:
Weight of moving objectVSReliability

Solution Approach 1:

The controller continuously monitors the temperature of the heating element and adjusts or limits the electrical energy input when a predetermined temperature threshold is reached, creating a closed-loop feedback system that ensures safe operation of the portable heater

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The controller acts as an intermediary between the power source and heating element, managing energy transfer and implementing safety protocols to prevent overheating while enabling portable operation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If electrical energy input to the heating element is increased to improve heating efficiency, then heating speed is improved, but risk of overheating and patient safety issues increases

Engineering Contradiction:
Improveheating speedVSAvoidoverheating risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The controller monitors temperature and provides feedback to limit electrical energy input when predetermined temperature thresholds are reached, enabling rapid heating while preventing dangerous overheating through automatic control

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts the electrical energy input to the heating element based on real-time temperature conditions, allowing high power delivery when safe and automatic reduction when thresholds are approached

Inventive Principle:
Principle #15Dynamics

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 provides a reliable, portable, and lightweight means to heat IV fluids safely and efficiently, ensuring patient safety by preventing overheating and allowing remote monitoring and control.

Implementation Method 1

A heating element is configured to connect to the second connector

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS8690842B2Electrical power source for an intravenous fluid heating system
Publication Date: 2014.04.08 ESTILL MEDICAL TECHNOLOGIES INC
  • US8690842B2 patent drawing
  • US8690842B2 patent drawing
  • US8690842B2 patent drawing

AI summary

An apparatus heats fluids. A number of lithium-ion cells are positioned within a housing. A first connector is positioned on a first end of the housing and operably connected to the number of lithium-ion cells. The first connector is configured to receive electrical power from a power source. A second connector is positioned on a second end of the housing and operably connected to the number of lithium-ion cells. A heating element has a tube for transferring fluid. The heating element is configured to connect to the second connector. A controller is positioned within the housing and operably connected to the number of lithium-ion cells and the second connector. The controller is configured to monitor a rate at which the electrical power is received by the heating element and limit an amount of the electrical power received by the heating element when the rate reaches a predetermined level.