Endodontic Handpiece with Real-Time Risk Zone Warning
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Solution Overview
Problem
Endodontic instrument breakage during root canal treatment is frequent and unpredictable, leading to treatment complications and failures due to complex canal geometries and unknown instrument dynamics, despite improved instrument design.
Innovation Solution
A handpiece with a control unit and sensors to monitor instrument position and stress in real-time, using a database of previous treatments to predict and alert the practitioner of risk areas, and adapt instrument dynamics to prevent breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If instrument design is improved to make instruments more resistant to stresses, then instrument strength is improved, but instrument breakage still occurs due to unpredictable canal geometry and unknown instrument dynamics
Solution Approach 1:
The system continuously monitors instrument position, canal geometry, and mechanical stresses in real-time, providing feedback to predict and warn of breakage risks. Sensors detect actual instrument dynamics and compare them against predicted behavior, allowing the system to alert practitioners before breakage occurs.
Solution Approach 2:
The patent replaces purely mechanical instrument design improvements with a hybrid system combining sensors, control units, and software algorithms. This substitution enables real-time monitoring and prediction of instrument behavior, transitioning from passive mechanical strength enhancement to active electronic monitoring and warning.
2Measurement precision
If the practitioner manually monitors instrument position and adjusts technique for complex canal geometries, then treatment precision is improved, but treatment time increases and human error remains
Solution Approach 1:
The system performs self-monitoring of instrument position, canal geometry analysis, and breakage risk prediction without requiring continuous practitioner intervention. The automated monitoring and warning system handles these tasks independently, freeing the practitioner from manual monitoring while maintaining high precision.
Solution Approach 2:
Manual practitioner monitoring and judgment are replaced with automated electronic sensors and software algorithms. The control unit continuously analyzes instrument dynamics and canal geometry, substituting human cognitive processing with electronic computation to reduce both time and human error.
3Reliability
If real-time monitoring of instrument position and stress is implemented, then breakage prediction capability is improved, but device complexity increases
Solution Approach 1:
The handpiece integrates multiple functions into a single device: motor-driven instrument rotation, real-time position monitoring via sensors, stress measurement, canal geometry analysis, and breakage prediction. This multi-functionality consolidates what would otherwise require separate devices into one integrated system.
Solution Approach 2:
The patent merges the monitoring sensors, control unit, software algorithms, and warning system into the existing handpiece structure. By combining these components into a unified integrated system rather than separate add-on devices, the overall system complexity is managed more effectively.
4Adaptability or versatility
If the practitioner lacks knowledge of canal geometry parameters and instrument dynamics, then treatment adaptability is reduced, but comprehensive monitoring requires extensive data collection and processing
Solution Approach 1:
The system performs preliminary analysis of canal geometry and instrument dynamics before treatment begins and continues throughout. By proactively collecting and analyzing data in advance and in real-time, the system prepares breakage predictions before they occur, enabling preventive action rather than reactive response.
Solution Approach 2:
The control unit and software algorithms act as intermediaries between the raw sensor data and the practitioner. The system processes complex canal geometry and stress data, translating it into simplified breakage risk warnings that the practitioner can easily understand and act upon, bridging the gap between complex data and practical decision-making.
Data Source
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AI summary
The invention relates to a method for warning that an instrument (20) is at risk of breaking during an endodontic treatment. According to the invention, the method comprises the following steps: - acquiring the shape of a root canal (42) to be treated; - identifying a risk zone (44), on the basis of complexities in the shape of the canal (42), such as bends or bifurcations in the canal (42); - in real time, acquiring the working depth (Lp) of the instrument (20); - determining the position of the instrument (20) inside the canal (42), and issuing a warning when the instrument (20) reaches the risk zone (44).