Infrared Dental Material Heating With Sensor-Based Temperature Control

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Solution Overview

Problem

Existing dental material heating devices are inefficient, often leading to overheating or underheating, which compromises the material and wastes energy, and lack safety features to prevent unwanted heating.

Innovation Solution

A heating device with a body that accommodates different container types, featuring infrared light emitting diodes, temperature sensors, and proximity sensors to control and maintain precise temperature, along with locking mechanisms to ensure safe and efficient heating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If electric resistor heating devices are used to heat dental materials, then the dental materials can be warmed up to alter their properties, but the heating efficiency is poor and energy is wasted due to overheating or underheating

Engineering Contradiction:
Improveheating efficiencyVSAvoidenergy waste
Core Design Contradiction:
Use of energy by moving objectVSLoss of energy

Solution Approach 1:

The patent implements a feedback control system using temperature sensors to continuously monitor the temperature of the container and adjust the heating power accordingly. The control unit compares the measured temperature with the target temperature and dynamically adjusts the heating element's power output, preventing both overheating and underheating, thereby significantly improving heating efficiency and reducing energy waste.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces traditional electric resistor heating with infrared LED heating technology. The infrared LEDs emit infrared radiation that directly heats the container and dental material without requiring high-power electrical resistance heating, resulting in more efficient energy conversion and reduced energy loss.

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

2Temperature

If heating devices without precise temperature control are used, then dental materials can be heated, but the materials may be compromised or deteriorated due to overheating

Engineering Contradiction:
Improvetemperature control precisionVSAvoidmaterial integrity
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

The patent employs temperature sensors and a feedback control system that continuously monitors the temperature and adjusts heating power in real-time. This prevents overheating that could compromise material integrity while ensuring the dental material reaches the necessary temperature for proper handling and application.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary temperature assessment and controlled heating from the start, using the control unit to gradually increase temperature to the target range rather than applying high heat immediately. This preliminary controlled action prevents thermal shock and material deterioration.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If heating devices lack safety features, then heating operation is simple, but unwanted heating can occur causing energy waste and potential damage

Engineering Contradiction:
Improveoperation simplicityVSAvoidunwanted heating effects
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The feedback control system with temperature sensors automatically detects when the target temperature is reached and stops or reduces heating, preventing unwanted overheating. This maintains operational simplicity for the user while eliminating harmful effects through automatic control.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The heating device performs self-monitoring and self-regulation through integrated temperature sensors and control logic. The system automatically manages its own heating process, detecting temperature conditions and adjusting power output without requiring constant user intervention, thus preventing unwanted heating while maintaining ease of use.

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 device efficiently heats dental materials to desired temperatures, reducing energy consumption and preventing material deterioration, while ensuring safety through precise temperature control and automatic deactivation.

Implementation Method 1

at least one light emitting diode configured to emit infrared light onto an outer surface of the container housing the dental material

Methodology Applied
Scientific EffectInfrared radiation: Infrared Radiation

Implementation Method 2

The heating device efficiently heats dental materials to desired temperatures

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 3

temperature sensors, and proximity sensors to control and maintain precise temperature

Methodology Applied
Scientific EffectTemperature sensing: Thermography

Data Source

PatentEP4216868B1Heating device for heating dental material, system for applying dental material and method for controlling the temperature of a dental material
Publication Date: 2025.08.06 SOLVENTUM INTELLECTUAL PROPERTIES CO
  • EP4216868B1 patent drawingFigure 1
  • EP4216868B1 patent drawingFigure 2
  • EP4216868B1 patent drawingFigure 4~5

AI summary

The invention relates to a heating device 10 for heating a dental material and a method for controlling the temperature of a dental material.