Implant Scanning Body Assembly With Retained Fastener and 3D Markings
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Solution Overview
Problem
Current methods for edentulous arch intraoral implantation face issues such as cumbersome traditional impression-taking techniques, digital impression scanner common scanning body techniques with fasteners easily falling off, and limitations in manufacturing processes and materials, including scanning body positioning portions that rotate during assembly.
Innovation Solution
A scanning body with an inner cavity and a first fastener featuring a stopper portion and fastening portion, where the fastener is limited in the inner cavity by a stopper portion and anti-disengagement structure, and a pre-tightening member prevents rotation, allowing for separate manufacturing of the positioning base and top for adaptability, and includes a scanning body marking portion with markings at different heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fastener is used to connect the scanning body positioning portion to the implant, then the scanning body can be securely mounted, but the fastener easily falls off during assembly
Solution Approach 1:
The fastener is nested within the inner cavity of the scanning body positioning portion, with the stopper portion fitting into a dedicated cavity and the anti-disengagement structure preventing removal. This nesting approach secures the fastener during assembly while maintaining ease of operation.
Solution Approach 2:
The anti-disengagement structure acts as an intermediary mechanism between the fastener and the scanning body positioning portion. It allows the fastener to be inserted and secured during assembly while preventing accidental disengagement, thus resolving the contradiction between secure mounting and ease of assembly.
2Ease of manufacture
If the scanning body positioning portion is made as a single integrated piece, then manufacturing is simpler, but it limits design flexibility and adaptability
Solution Approach 1:
The scanning body positioning portion is segmented into a positioning base and a positioning top that can be separately manufactured and then assembled. This segmentation provides design flexibility and adaptability for different implant configurations while maintaining manufacturing simplicity through modular production of standard components.
Data Source
AI summary
A scanning body is provided. The scanning body includes a scanning body positioning portion provided with an inner cavity. A first fastener is provided in the inner cavity. The first fastener includes a stopper portion and a fastening portion. The bottom of the scanning body positioning portion is provided with a mounting hole for the fastening portion to pass through. The bottom of the scanning body positioning portion is in limiting fit with the stopper portion along an extending direction of the inner cavity. The fastening portion passes through the mounting hole and is configured for connecting to an implant; and the inner cavity passes through the top end of the scanning body positioning portion for allowing a user to operate the first fastener.