Denture Fixing Attachment with Ball Joint for Inclined Fixture Alignment

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Solution Overview

Problem

Conventional abutment technologies for fixing dentures are inconvenient when fixtures are not arranged in parallel, requiring additional parts or reoperations to couple the denture, especially when fixtures have inclination angles.

Innovation Solution

A denture-fixing attachment with a rotation guide member and a ball joint system that allows for adjustable angles and positions, eliminating the need for additional parts and simplifying the coupling process by compensating for inclination angles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional abutment technologies are used to fix dentures, then the fixtures can be securely implanted in the alveolar bone, but additional parts and reoperations are required when fixtures are not arranged in parallel

Engineering Contradiction:
Improvesecure implantation of fixturesVSAvoidadditional parts and reoperations
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The abutment is designed with a ball joint mechanism that allows dynamic adjustment of the abutment's angle and position relative to the fixture. This dynamic capability enables the abutment to adapt to non-parallel fixture arrangements without requiring additional surgical interventions or extra components, thereby resolving the contradiction between secure implantation and device complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The ball joint mechanism changes the angular and positional parameters of the abutment to match the actual arrangement of fixtures. By allowing continuous adjustment of these parameters within a reasonable range, the system can accommodate various fixture configurations without requiring additional parts or reoperations

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If fixtures are implanted with inclination angles, then the implant treatment can be performed, but additional parts are needed to couple the denture

Engineering Contradiction:
Improveimplant treatment capabilityVSAvoidadditional parts for coupling
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The ball joint mechanism provides dynamic adjustability that allows the abutment to compensate for fixture inclination angles. This eliminates the need for additional coupling parts by enabling the abutment itself to adapt to the inclined fixture arrangement through angular adjustment

Inventive Principle:
Principle #15Dynamics

3Reliability

If conventional abutment coupling methods are used, then the denture can be fixed, but treatment time is extended and patient burden increases

Engineering Contradiction:
Improvedenture fixationVSAvoidtreatment time and patient burden
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The dynamic ball joint mechanism allows for simplified coupling procedures by eliminating the need for additional parts and reoperations. This reduces treatment time and patient burden while maintaining reliable denture fixation through the adjustable abutment-fixture connection

Inventive Principle:
Principle #15Dynamics

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 reduces the need for additional surgical operations, shortens treatment time, reduces patient and operator burdens, and extends the lifespan of the fixture by evenly distributing chewing pressure.

Implementation Method 1

a ball joint (5) having a ball joint lower portion (51) placed in a rotation guide member inside (31) provided in the ball joint angle restriction cover (3)

Methodology Applied
Scientific EffectBall joint mechanism: Ball

Data Source

PatentEP2835110B1Denture-fixing attachment having freely adjustable angle and position
Publication Date: 2018.05.09 WANG JE WON
  • EP2835110B1 patent drawingFigure 1~2
  • EP2835110B1 patent drawingFigure 3(A)~4(C)
  • EP2835110B1 patent drawingFigure 5(A)~6(C)

AI summary

Disclosed is a denture-fixing attachment freely adjustable in angle and position and including a rotation guide member installed at the center of the denture-fixing attachment, having a lower portion to be inserted into a fixture groove of a fixture, a thread being formed at a rim of the fixture groove, so that the rotation guide member may be coupled with the fixture having the fixture groove, a rotation guide member angle restriction cover positioned on the rotation guide member and provided therein with a through hole, and a ball joint having a ball joint lower portion placed in a rotation guide member inside provided in a ball joint angle restriction cover.