Motorized Tooth Root Extraction Device with Automated Tension Control
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Solution Overview
Problem
Existing tooth extraction devices require significant manual effort and intervention from dentists, which can lead to complications and inefficiencies during the extraction process.
Innovation Solution
A device equipped with a controllable motorized pulling mechanism that automatically adjusts tension force to facilitate tooth root extraction with minimal manual handling, allowing for automated tooth extraction without the need for continuous dentist intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to generate tensile force for tooth root extraction, then the dentist can control the extraction process, but significant manual effort and intervention are required leading to inefficiencies and potential complications
Solution Approach 1:
The patent replaces the manual mechanical system (dentist's hand operation) with an automated motorized pulling mechanism. The motor (21) drives a threaded spindle (19') that converts rotational motion into linear motion of the carriage (19), thereby automatically generating and applying tensile force to the pulling element (15) and tooth root, eliminating the need for manual effort while maintaining extraction capability
Solution Approach 2:
The device enables self-service extraction by incorporating a control device that automatically regulates the motor's power output. The system can autonomously adjust the tensile force applied to the tooth root based on pre-programmed parameters, allowing the extraction process to proceed with minimal continuous dentist intervention, thus improving productivity while ensuring controlled operation
2Productivity
If automated motorized pulling mechanism is used, then extraction efficiency and safety are improved, but device complexity increases
Solution Approach 1:
The device is segmented into functionally independent modules: a motor unit (21) for force generation, a transmission unit with threaded spindle (19') and carriage (19) for motion conversion, a support structure (12) for positioning, and a control device for regulation. This modular segmentation allows each component to be optimized independently and simplifies the overall system architecture, making the automated device more manageable despite increased complexity
Solution Approach 2:
The motorized pulling mechanism serves multiple functions: it generates tensile force, controls the rate of extraction through speed regulation, and can be integrated with the support structure to provide both automated pulling and positional adjustment capabilities. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity while maintaining high productivity
3Speed
If motor power is continuously high during extraction, then extraction speed is improved, but safety and control are reduced
Solution Approach 1:
The control device dynamically adjusts the motor's power output during the extraction process. Rather than maintaining constant high power, the system varies the electrical power supplied to the motor based on real-time conditions and pre-programmed extraction curves, enabling both high extraction speed when appropriate and reduced power when safety concerns arise, thus resolving the contradiction between speed and safety
Solution Approach 2:
The system incorporates feedback control where the control device monitors the extraction process and adjusts motor power accordingly. By regulating the electrical power to the motor based on extraction progress and resistance feedback, the system can accelerate extraction when conditions permit while automatically reducing power when safety thresholds are approached, achieving both high speed and reliability
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
Enables safe, efficient, and controlled tooth root extraction with reduced manual effort, enhancing the procedure's safety and ease for both dentists and patients by automating the extraction process.
Implementation Method 1
a controllable motor (21) for generating a pulling force of the pulling element (15)
Implementation Method 2
A knurled nut is screwed onto the clamping support, which engages the support sleeve
Implementation Method 3
The clamping support is provided with a threaded bolt that extends through a support sleeve
Data Source
Figure 1~2
Figure 3
AI summary
In a method for controlling a device for the extraction in particular of a tooth root, the device (10) has a front mouth-side support (12), a tensioning element (15) guided in the latter, and a tensioning mechanism (20) connectable to the tensioning element (15). The tensioning element (15) is deflected, at the front, approximately at right angles to the longitudinal extent of the support (12) and is connected to a pin that can be fastened in the tooth root. The tensioning element (15) is drawn to its stretched state by a controllable motor with low expenditure of force or is connected in this stretched state to the pin. The tensile force (F) is then increased manually or automatically to a predefined fixed or variable value by increasing the preferably electrical output of the motor of the tensioning mechanism (20), and thereafter, when the tooth root has come loose, the output of the motor is reduced to a defined value or to zero. Extraction of a tooth root can thus be carried out very easily and extremely safely in particular by a dentist.