Periodontal Retractor with Multi-Angle Segmented Connection
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Solution Overview
Problem
Conventional retractors for periodontal surgery face difficulties in securing a workspace and accommodating diverse oral cavity shapes or teeth alignments due to their linear or simple hook-shaped connection structures, making it challenging to insert the blade effectively into gum openings.
Innovation Solution
A retractor with a handle and connection portions forming specific angles, allowing the blade to be easily inserted into gum openings, featuring a first connection portion connected to the handle, a second connection portion with a zigzag shape, and a blade that can be rotated, all located on the same plane, enabling secure retraction even in varied oral cavity shapes and teeth alignments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a linear or simple hook-shaped connection structure is used between the blade and handle, then the device structure is simple, but it is difficult to secure a work space in the mouth and accommodate diverse oral cavity shapes or teeth alignments
Solution Approach 1:
The connection structure is divided into multiple segments (first connection portion, second connection portion, third connection portion) with different angles, allowing each segment to adapt to different anatomical constraints in the oral cavity while maintaining overall structural simplicity
Solution Approach 2:
The connection portions are designed with specific angles (first angle between 0-10 degrees, second angle between 10-30 degrees, third angle between 30-45 degrees) that provide dynamic adaptability to accommodate diverse oral cavity shapes and teeth alignments without requiring a completely complex structure
2Ease of operation
If a linear or simple hook-shaped connection structure is used, then the manufacturing is easy, but the blade cannot be easily inserted into gum openings in varied oral cavity shapes
Solution Approach 1:
The connection structure is segmented into multiple portions with specific angles that facilitate easy insertion into gum openings while maintaining manufacturing simplicity through standardized angular configurations
Solution Approach 2:
The connection portions are designed with optimized angle parameters (first angle 0-10 degrees, second angle 10-30 degrees, third angle 30-45 degrees) that improve ease of insertion while keeping the manufacturing process straightforward
3Productivity
If conventional retractors are used, then the structure is simple, but the work space cannot be secured during surgery according to the position of opening in the gums
Solution Approach 1:
The retractor is segmented into functionally distinct portions (handle, first connection portion, second connection portion, third connection portion, blade) that work together to secure workspace effectively while maintaining overall structural simplicity
Solution Approach 2:
The multi-angle connection structure provides dynamic adaptability to position the blade effectively according to the opening position in the gums, improving surgical efficiency without requiring excessive structural complexity
Data Source
AI summary
A retractor for periodontal surgery includes an elongated handle from which extends a first connection portion and a second connection portion, with a blade extending from the second connection portion. The handle and the first connection portion are positioned at a first angle, the first connection portion and the second connection portion are positioned at a second angle. The first and second connection portions are generally co-planar. The blade is obliquely positioned at a third angle relative to the central axis of the second connection portion. The blade may be easily inserted into an incision in a patient's gum so as to retract the incision.