Root Canal Handpiece with Integrated LED Length Measurement
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Solution Overview
Problem
Conventional root canal length measurers require a separate process for checking measurement results on a display device, making the procedure cumbersome and prolonging treatment time, as operators need to repeatedly move their gaze between the patient's affected area and the display.
Innovation Solution
A handpiece with an integrated LED light source and diffusion material allows operators to visually confirm root canal length measurements through color changes, eliminating the need for a separate display device by using an angle with a root canal treatment file, a lip hook, and a control module that changes LED light color based on impedance values indicating the dental root end position and length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional root canal length measurer with a separate display device is used, then the measurement function is provided, but the procedure time is prolonged and operator convenience deteriorates due to repeated gaze movement between the patient area and display
Solution Approach 1:
The patent combines the measurement device and display into a single integrated unit. The display is positioned on the measurement device itself, allowing the operator to view measurement results directly at the measurement site without moving to a separate display location, thereby reducing procedure time and improving operational efficiency
Solution Approach 2:
The patent introduces an optical display system that acts as an intermediary between the measurement function and the operator. The display presents measurement results in real-time through optical signals (such as LED indicators or small screens) that are visible during the measurement process, eliminating the need for separate viewing and reducing time loss
2Measurement precision
If a conventional root canal length measurer with a separate display device is used, then the measurement function is provided, but operator convenience deteriorates due to the need to repeatedly move sight between the patient's affected area and the display
Solution Approach 1:
The display function is merged with the measurement device, creating a unified tool that performs both measurement and result display. This integration allows the operator to maintain a stable viewing position and focus on the patient area while simultaneously accessing measurement results, significantly improving ease of operation
Solution Approach 2:
An optical display intermediary is positioned to provide measurement information in the operator's field of view. This intermediary presents data through visual indicators that can be perceived without shifting focus away from the treatment area, thereby maintaining operational convenience and stability
3Loss of information
If a separate display device is used for root canal length measurement, then measurement results can be displayed, but device complexity increases and procedural stability deteriorates
Solution Approach 1:
The patent merges the display function with the measurement device into a single integrated unit. This consolidation reduces the number of separate components and connections required, simplifying the overall device configuration while maintaining full measurement and display functionality
Solution Approach 2:
The patent employs a compact optical display intermediary that integrates seamlessly with the measurement device. This intermediary provides measurement information through simple visual indicators (such as LED lights or small displays) that require minimal additional components, thereby reducing device complexity while ensuring measurement results are clearly visible
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
This solution enhances procedural stability and precision, reduces operator fatigue, and simplifies the device configuration by allowing visual feedback of measurement results through LED light color changes during root canal treatment, enabling more efficient and convenient operation.
Implementation Method 1
an LED light source for emitting LED light from one end of the body portion
Implementation Method 2
a diffusion material for diffusing an LED light of an LED light source is inserted into an angle to be coupled to the body portion
Implementation Method 3
measuring an impedance value that varies as the file approaches from the tooth surface to the dental root end
Data Source
AI summary
A handpiece having a root canal length measurement function according to an exemplary embodiment may include: an angle having a portion made of a diffusion material for diffusing LED light from the LED light source, the portion including one side provided with a root canal treatment file for removing dental pulp inside the root canal and for expanding the root canal; a lip hook provided such that same can be cradled on the subject's lips; a body portion electrically connected to the file through a first terminal connector, into which a first terminal provided on the other side of the angle is to be inserted, and electrically connected to the lip hook through a second terminal connector, into which a second terminal of the lip hook is to be inserted; and an LED light source for emitting LED light from one end of the body portion.