Microperforated Titanium Plate for Guided Bone Regeneration
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Solution Overview
Problem
Existing bone regeneration devices face challenges in maintaining the regeneration volume and preventing tissue colonization due to their flexibility or rigidity, which affects the efficacy of bone defect repair and the ease of removal.
Innovation Solution
A microperforated covering plate made from grade 1 or 2 titanium, tailored to the patient's anatomy, providing the necessary rigidity for bone defect correction and elasticity for easy installation, with microperforations for nutrient supply and preventing tissue colonization, allowing for secure fixation and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If flexible covering membranes are used, then ease of installation and stabilization of bone graft are improved, but ability to maintain regeneration volume under chewing stress deteriorates
Solution Approach 1:
The patent changes the mechanical parameter of the covering device from flexible (membranes) to rigid (plates), specifically selecting grade 1 or 2 titanium which provides sufficient rigidity to resist chewing forces while maintaining ease of installation through precise pre-shaping and fixation mechanisms
2Strength
If rigid titanium covering plates are used, then ability to maintain regeneration volume under chewing stress is improved, but ease of installation and shaping deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-shaping the rigid titanium plates to match the specific bone defect geometry before implantation, eliminating the need for intraoperative shaping while maintaining installation ease through standardized fixation protocols
3Stability of the object's composition
If rigid covering plates are used, then stability of regeneration volume over time is improved, but ease of removal deteriorates due to tissue anchoring
Solution Approach 1:
The patent employs porous titanium material structure that allows controlled tissue integration during the regeneration period while maintaining plate rigidity, and enables easy removal after regeneration by disrupting the tissue-plate anchoring through the porous structure
4Quantity of substance
If microperforations are added to covering plate, then nutrient supply to bone defect is improved, but structural integrity deteriorates
Solution Approach 1:
The patent uses microperforations in grade 1 or 2 titanium plates where the perforation size and distribution are optimized to allow nutrient diffusion while maintaining sufficient structural integrity, leveraging the high strength-to-density ratio of pure titanium
Solution Approach 2:
The patent applies local quality by strategically positioning microperforations in specific regions of the plate where nutrient supply is most critical, while maintaining solid plate structure in load-bearing areas to preserve overall structural integrity
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
The titanium covering plate effectively maintains the regeneration volume, facilitates bone healing, and allows for easy removal without compromising the regenerated bone structure, enabling successful bone regeneration and subsequent dental implant placement.
Implementation Method 1
a covering plate with sufficient rigidity to give a shape correcting the bone defect and to resist the patients chewing episodes
Implementation Method 2
microperforations for nutrient supply
Data Source
AI summary
A device for guided bone regeneration includes a custom-made covering plate that covers a bone defect, whose shape allows for the surface of the bone to be restored as it was prior to the appearance of the bone defect. The covering plate rests on the healthy bone surrounding the bone defect and is made of grade 1 or grade 2 titanium.