Retaining-Bracket Maxilla Implant for Precise Segment Alignment

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Solution Overview

Problem

Existing maxillary repositioning implants are difficult to manufacture, lack stability, result in unaesthetic appearance, cause discomfort, and have common complications and adverse medical side effects.

Innovation Solution

A maxillary repositioning implant with a base and connecting section, connected via retaining brackets, allowing for simplified insertion and improved manipulability, featuring a stress-optimized design with minimal material usage and enhanced biocompatibility, manufactured using patient-specific CAD/CAM processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional maxillary repositioning implants are used, then fixation function is provided, but manufacturing difficulty increases and stability is insufficient

Engineering Contradiction:
ImprovestabilityVSAvoidmanufacturing difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The implant is divided into multiple separate plate components (base plate, connecting section plate, and retaining bracket) that are manufactured independently and then assembled. This segmentation allows each component to be manufactured using standard processes with lower difficulty, while the assembled structure provides enhanced stability through distributed fixation points across the maxillary segments.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If conventional maxillary repositioning implants are used, then fixation function is provided, but appearance becomes unaesthetic and patient comfort decreases

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidfixation reliability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The retaining bracket is designed as a separate removable component that can be extracted after the maxillary segments are fixed in the correct position. This allows the implant structure to be minimized or removed from the aesthetic zone once healing begins, improving appearance while maintaining fixation reliability during the critical initial healing period.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If conventional maxillary repositioning implants are used, then fixation function is provided, but device complexity increases

Engineering Contradiction:
Improveimplant structure complexityVSAvoidinsertion procedure simplicity
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The base plate and connecting section plate are pre-shaped with predetermined geometries and attachment interfaces before the surgical procedure. The retaining bracket is also prepared in advance with specific engagement features. This preliminary preparation of components with standardized shapes and connection mechanisms simplifies the actual insertion procedure, reducing surgical complexity while maintaining effective fixation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4203813B1Maxilla repositioning implant comprising a retaining bracket
Publication Date: 2026.01.28 KARL LEIBINGER ASSET MANAGEMENT GMBH & CO KG
  • EP4203813B1 patent drawingFigure 1~7
  • EP4203813B1 patent drawingFigure 8~14

AI summary

The invention relates to a maxilla repositioning implant (1) for three-dimensional precise alignment of a maxilla displacing portion (5) relative to a remaining maxilla portion (3) that is fixed to the skull, wherein the maxilla repositioning implant (1) comprises a base (3), which has at least one plate (7) in which screw holes (10) are provided, wherein a portion of the material of the plate (7) defines, as a rim (11), in each case a screw hole (10) that is provided for receiving a bone screw (17) in order to ensure fastening, via the bone screw (17) to be inserted into the particular screw hole (10), to the remaining maxilla portion (3) that is fixed to the skull, wherein the maxilla repositioning implant (1) also comprises a connection portion (4), which is spaced apart from the base (2) by connecting bridges (6), wherein the connection portion (4) comprises at least one plate (7) in which screw holes (10) are provided, and wherein a portion of the material of this plate (7) defines, as a rim (11), in each case a screw hole (10) in order to ensure fastening, via a bone screw (17) to be inserted into the particular screw hole (10), to the maxilla displacing portion (5), wherein two plates (7) of the base (2) are interconnected via a retaining bracket (8, 9).