Integrated Bone Anchor Drilling Template
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Solution Overview
Problem
Current bone anchor and drilling template methods are time-consuming and difficult to use, especially in young patients or those with weak bone structures, as they require precise positioning and can damage developing bones or teeth roots, and often necessitate surgical corrections for malocclusion treatment.
Innovation Solution
A method involving a three-dimensional digital image of the bone to select optimal screw positions and orientations, designing an anchor plate with recesses for screws, and a drilling template with cylindrical recesses for guiding drills, allowing for precise anchoring without repositioning the implant after template removal, using rapid prototyping for production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a drilling template is used to make bore holes in the bone at predetermined positions, then the positioning precision of the bone anchor is improved, but the treatment time is increased due to the need to position and remove the template separately
Solution Approach 1:
The patent combines the drilling template and bone anchor into a single integrated unit. The template includes drill guides for making bore holes and simultaneously serves as the bone anchor structure. After drilling, the template remains in place as the functional bone anchor, eliminating the need for separate positioning and removal steps while maintaining precise bore hole positioning.
2Ease of operation
If the bone anchor is fixed after template removal, then the implant can be positioned opposite the bone, but the operation difficulty increases due to misalignment between bore holes and implant position
Solution Approach 1:
The drilling template is designed to remain as the bone anchor after drilling operations. The template structure includes the anchor plate with bone-contacting surface and connecting elements, integrating the positioning function with the anchoring function. This eliminates misalignment issues since the same structure that guides the drill becomes the final anchor.
3Reliability
If conventional bone anchors are used in young patients with developing bones, then anchoring can be achieved, but the risk of damaging developing bones or tooth roots increases
Solution Approach 1:
The bone side of the anchor plate is designed with specific local properties suitable for young patients. The surface geometry and material characteristics are optimized to distribute forces appropriately across developing bone structures, reducing stress concentration points that could cause damage to growing bones or tooth roots while maintaining sufficient anchoring strength.
Data Source
AI summary
A method for manufacturing at least one bone anchor and a corresponding drilling template, wherein the bone anchor has an anchor plate which is to be fixed to the surface of a bone by means of one or several screws having a screw head. The anchor plate thus has a bone side which is to connect to the surface of the bone and a free side which is opposite to said bone side. Further, a method for manufacturing a drilling template is described, making it possible to make bore holes in the bone at predetermined positions and to screw the bone anchor to the bone according to predetermined orientations.