Palatal Expansion Device With Unidirectional Gear And Arm Lever
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Solution Overview
Problem
Current palatal expansion devices are difficult for patients to attach and detach, risking injury and disruption of treatment due to the need for precise key insertion and rotation, which can lead to key slippage or loss.
Innovation Solution
A palatal and jaw expansion device with a unidirectional gear mechanism and arm lever system that allows for easy opening and closing by pushing or pulling, preventing backward movement and stabilizing block positioning, eliminating the need for a key and enhancing patient comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pointed key is used to rotate the screw around its own axis, then the device can be opened and closed, but the patient may experience difficulty in operation, risk of key slippage causing injury, or key loss
Solution Approach 1:
The harmful pointed key is extracted and replaced with a safe alternative. The invention removes the dangerous component (pointed key that can slip and injure) while retaining the essential function of opening and closing the device through the arm lever mechanism that rotates the screw around its longitudinal axis.
Solution Approach 2:
The arm serves as an intermediary between the user and the screw mechanism. Instead of directly manipulating a dangerous pointed key, the user operates the arm which then rotates the screw through a safe rotational movement around its longitudinal axis, mediating the interaction to eliminate injury risk.
2Productivity
If the screw rotates around its longitudinal axis, then the device can be opened and closed effectively, but the operational procedure becomes complex and time-consuming
Solution Approach 1:
The invention introduces dynamic movement by allowing the screw to rotate around its longitudinal axis through the arm mechanism. This dynamic rotation replaces static or complex multi-step procedures, enabling efficient opening and closing through a simple rotational motion that the user can perform easily.
3Stability of the object's composition
If a unidirectional gear mechanism is used to prevent backward movement, then block positioning is stabilized, but the device complexity increases
Solution Approach 1:
The unidirectional gear mechanism serves itself by automatically preventing backward movement of the blocks without requiring additional active control systems. The gear teeth inherently block reverse motion, providing self-service stabilization that maintains block positioning without complex external control mechanisms.
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
Facilitates easy and precise attachment and detachment of the device, reducing treatment disruptions and patient discomfort, while preventing injuries and allowing for comfortable use without additional tools.
Implementation Method 1
a movement mechanism that moves the screw with the blocks by means of an arm serving as a lever
Implementation Method 2
by means of the arm rotated around the horizontal axis where the screw extends, a palatal and jaw expansion device that is brought to open or closed position only by pushing or pulling the arm
Implementation Method 3
By means of the gearwheels forming the movement mechanism and moving in a unidirectional manner, the blocks are enabled to move on the screw in a more precise, accurate and robust manner
Implementation Method 4
Screw threads bored in opposite directions are provided on both sides of the screw. Thus, the blocks placed on both sides of the screws are enabled to move toward each other or away from each other at the same time
Data Source
AI summary
The present invention relates to a palatal and jaw expansion device comprising at least one screw, at least two blocks that are positioned on the screw so as to move on the screw, at least one stabilization rod whereon the blocks are seated, a movement mechanism disposed at the center of the screw and an arm that has a fixed end fixed to the movement mechanism perpendicularly to the horizontal axis where the screw extends and a free end and hat, when force is applied on the free end, rotates the movement mechanism whereon the arm is fixed and the screw around the horizontal axis where the screw extends, enabling the blocks to move on the screw.