Root Canal File with Radial Vibration for Bubble Removal

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Solution Overview

Problem

Current root canal treatment devices face challenges in efficiently cleaning the lower end of the root canal and removing air bubbles from filled drug materials, leading to prolonged treatment times and reduced attachment tightness of the drug material to the root canal wall.

Innovation Solution

A root canal treatment device equipped with a contra-angle hand-piece, a root canal file, and a drive module that includes a rotation driver and a vibration generator. The rotation driver axially rotates the root canal file to shape the canal, while the vibration generator radially vibrates the file at a specific frequency to activate the drug material and efficiently discharge air bubbles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If positive pressure rinsing is used to clean the root canal, then the cleaning process can be performed, but the lower end of the root canal cannot be sufficiently cleaned and organic substances and infected tissues remain

Engineering Contradiction:

Improvecleaning effectivenessVSAvoidcleaning time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent applies mechanical vibration by integrating a vibration generator that drives the root canal file to vibrate radially at high frequency. This vibration enhances the mechanical cutting and reaming action, allowing the file to effectively remove organic substances and infected tissues from the lower end of the root canal while reducing the overall cleaning time through more efficient material removal.

Inventive Principle:

Principle #18Mechanical vibration

Solution Approach 2:

The patent implements continuous useful action by combining rotational motion with radial vibration in a coordinated manner. The rotation driver and vibration generator work simultaneously to maintain continuous mechanical action on the root canal walls, ensuring thorough cleaning without interruption and reducing the total treatment time.

Inventive Principle:

Principle #20Continuity of useful action

2Reliability

If drug material is filled into the root canal, then the root canal can be sealed, but air bubbles are mixed into the drug material during blending which affects attachment tightness

Engineering Contradiction:

Improveattachment tightnessVSAvoidair bubbles

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent uses mechanical vibration to eliminate air bubbles from the drug material. The vibration generator drives the root canal file to vibrate radially, creating vibrational energy that dislodges and removes air bubbles from the drug material blend. This ensures the drug material achieves tight attachment to the root canal wall without interference from trapped air bubbles.

Inventive Principle:

Principle #18Mechanical vibration

3Manufacturing precision

If the root canal cleaning process is extended to ensure thorough cleaning, then cleaning effectiveness improves, but the patient opens mouth for a longer time and suffering is prolonged

Engineering Contradiction:

Improvecleaning effectivenessVSAvoidpatient suffering

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent applies mechanical vibration to enhance the efficiency of root canal cleaning. By integrating the vibration generator that drives the file to vibrate radially, the system achieves more effective removal of organic substances and infected tissues in shorter time, thereby reducing patient discomfort and opening mouth duration while maintaining thorough cleaning effectiveness.

Inventive Principle:

Principle #18Mechanical vibration

Solution Approach 2:

The patent implements continuous useful action through the coordinated operation of rotation and vibration. This continuous mechanical action ensures thorough cleaning is achieved more quickly, reducing the time the patient's mouth remains open and minimizing patient suffering during the procedure.

Inventive Principle:

Principle #20Continuity of useful action

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 significantly reduces the time required for the washing process, enhances the cleaning efficiency of infected tissues and drug liquids, and ensures a tighter attachment of the drug material to the root canal wall, thereby improving treatment outcomes and patient comfort.

Implementation Method 1

the vibration generator is configured to drive the root canal file to vibrate radially

Methodology Applied

Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Implementation Method 2

the vibration generator is an ultrasonic transducer

Methodology Applied

Scientific EffectUltrasonic transduction: Ultrasonic Motor

Data Source

PatentUS12324718B2Root canal treatment device

Publication Date: 2025.06.10 GUILIN WOODPECKER MEDICAL INSTR CO LTD

AI summary

A root canal treatment device relates to the technical field of dental treatment instruments. The root canal treatment device includes a contra-angle hand-piece and a root canal file detachably connected to the contra-angle hand-piece, and further includes a drive module in transmission connection with the root canal file, the drive module includes a rotation driver and a vibration generator, wherein the rotation driver is configured to drive the root canal file to rotate axially, so as to mechanically cut and ream the root canal, thus shaping the root canal, and the vibration generator is configured to drive the root canal file to vibrate radially.