Surgical Guide Verification for Master Tube Axis Alignment
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Solution Overview
Problem
There is a need to ensure that the physical surgical guide accurately matches the virtually designed surgical guide, as manufacturing errors or insertion errors can offset the axis of master tubes, affecting the precision of dental implant placement.
Innovation Solution
A system is provided to check the accuracy of the physical surgical guide by using master tubes with scan bodies, which are scanned to obtain digital data, and the data is merged with the virtual design to verify alignment, or a check protocol form is used to physically confirm accuracy through calibration pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the physical surgical guide is manufactured using substrative or additive methods, then the surgical guide can be produced efficiently, but manufacturing errors can offset the axis of master tubes and reduce alignment precision
Solution Approach 1:
The patent applies preliminary action by incorporating master tubes with scan bodies directly into the surgical guide during the manufacturing process, and performing accuracy verification before the guide is used in surgery. The scan bodies are attached to master tubes in advance, and the entire assembly is scanned and verified against the virtual plan prior to surgical use, preventing alignment errors from propagating to the actual implant placement.
Solution Approach 2:
The patent uses copying by creating a digital replica of the physical surgical guide through scanning the scan bodies. The scanned data is then merged with the original virtual surgical plan to create a verified digital model that can be compared against the physical guide's actual dimensions and orientations, allowing detection of any manufacturing deviations.
2Ease of manufacture
If traditional manufacturing methods are used for the surgical guide, then production is simpler, but there is no built-in mechanism to verify accuracy against the virtual design
Solution Approach 1:
The patent introduces scan bodies as intermediary elements that are attached to the master tubes. These scan bodies serve as mediators between the physical surgical guide and the digital verification system. The scan bodies are scanned to capture the actual positions and orientations of the master tubes, enabling comparison with the virtual plan without requiring direct measurement of the master tubes themselves.
Solution Approach 2:
The patent replaces traditional mechanical measurement and verification methods with optical scanning and digital data processing. Instead of using physical calipers or measurement tools to verify master tube alignment, the system uses optical scanners to capture scan body geometry and digitally compares the results with the virtual surgical plan, providing more precise and efficient verification.
Data Source
AI summary
A method and a device for the simplified inspection of the compatibility of the positions of master tubes in a surgical guides with respect to the positions in a predetermined plan in a computer model. For example, during virtual planning, the virtual surgical guide includes master tubes having an axis that is the axis (e.g., an installation axis) along which a dental implant will be installed. The virtual surgical guide can be manufactured, e.g., by substrative methods and additive methods. As discussed herein, the accuracy of the physical surgical guide can be checked physically or virtually.