Two-Part Abutment Blank Holder for Implant-Safe Milling
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Solution Overview
Problem
Existing holding devices for dental abutment blanks during milling often exert forces on the implant connection, risking damage and complicating the coupling process, which can lead to inaccurate machining and potential damage to the implant interface.
Innovation Solution
A two-part holding frame system with a blank holder and main frame, featuring fixation elements that transition between a floating and engaged position, allowing secure coupling and decoupling of the abutment blank without direct contact to the implant interface, thereby minimizing stress on the implant connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the abutment blank is held on the implant connection during machining, then the blank is securely retained, but forces are exerted on the implant connection risking damage
Solution Approach 1:
The holding device is divided into two separate parts: a holding frame that provides stable retention, and a separate implant interface that remains untouched. This segmentation allows the blank to be securely held without transmitting machining forces to the implant connection, resolving the contradiction between retention stability and damage prevention.
Solution Approach 2:
The holding frame acts as an intermediary structure between the abutment blank and the machining process. It provides the necessary retention and stability during machining while isolating the implant interface from harmful forces, thus protecting the implant connection while maintaining secure blank retention.
2Strength
If the implant interface is used for retaining the blank, then secure coupling is achieved, but the coupling process becomes complicated
Solution Approach 1:
By separating the retention function (performed by the holding frame) from the implant interface, the system achieves secure coupling through dedicated fixation mechanisms while simplifying the overall coupling process. The implant interface remains intact and undamaged, and the holding frame can be easily attached and detached without complicating procedures.
3Stability of the object's composition
If forces are applied to the implant connection for holding, then the blank is securely retained, but machining precision is compromised
Solution Approach 1:
The holding frame provides a stable, force-absorbing structure that is separate from the implant interface. This segmentation ensures that retention stability is achieved through the holding frame while the implant interface remains free from disturbing forces, thereby maintaining high machining precision.
Solution Approach 2:
The holding frame serves as an intermediary that absorbs and isolates machining forces, preventing them from reaching the implant interface. This mediator structure maintains both retention stability and machining precision by decoupling the force transmission path from the critical implant connection.
Data Source
Figure 1
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Figure 4A~4B
AI summary
According to one example, a holding device system including a two-part holding frame having a blank holder coupled to a main frame is disclosed. The two-part holding frame can define a processing space and a fixation space. The holding device system can further include at least one fixation element having a head positioned within the fixation space and a threaded shaft extending within and engaged with a bore of the two-part holding frame. In one example, when the blank holder is coupled to the main frame, the at least one fixation element is unable to be removed from the two-part holding frame.