Bone Plate Screw Guide Retention Mechanism
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Solution Overview
Problem
Existing screw guides for bone plates are not easy to use, as they do not efficiently retain and align screws during the bone fixation process, leading to difficulties in securely fastening bone portions together.
Innovation Solution
A fastener guide with a through-bore and an end that contacts the bone plate, featuring a member to retain the fastener within the body, automatically aligns and secures the fastener into the desired hole of the bone plate, releasing the screw once it is properly seated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a typical screw guide with multiple screws and a tubular body is used, then screw guidance capability is provided, but device complexity increases and ease of operation decreases
Solution Approach 1:
The patent extracts and eliminates unnecessary components from the traditional screw guide design. By removing the tubular body, multiple screw cartridges, and complex guiding mechanisms, the invention retains only the essential function of aligning and guiding the screw into the bone plate hole, thereby simplifying the device structure and improving ease of operation
Solution Approach 2:
Instead of using a complex tubular structure to guide the screw, the patent inverts the approach by using a simple planar alignment feature that guides the screw through geometric constraint and visual alignment, reversing the traditional three-dimensional guiding mechanism into a simpler two-dimensional alignment system
2Productivity
If a screw guide manually retains and guides the screw, then alignment is achieved, but time consumption increases due to manual operations
Solution Approach 1:
The patent implements self-service by designing the screw guide to automatically retain and release the screw without manual intervention. The guide structure itself provides the retaining function through its geometric design, and the screw is automatically released when properly aligned and inserted into the bone plate hole, eliminating the need for manual retention and release operations
Solution Approach 2:
The screw guide performs preliminary alignment and positioning actions before screw insertion. The guide structure pre-establishes the correct trajectory and orientation of the screw relative to the bone plate hole, so that when the screw is inserted, it is already properly aligned, eliminating the need for subsequent manual alignment adjustments
Data Source
AI summary
A fastener guide that includes a body. The body includes a through-bore configured for receiving a fastener and an end configured for contacting a bone plate. The fastener guide further includes at least one member configured for contacting and retaining the fastener within the body.