Rotatable Anchoring Drill Guide for Spinal Bone Plate
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Solution Overview
Problem
Existing bone fixation systems face challenges with misalignment and instability due to improper seating of bone screws, which can cause tissue damage and an unstable connection between the bone plate and the bone, necessitating improved anchoring mechanisms for drill guides during spinal surgery.
Innovation Solution
A double-barrel drill guide system with a rotatable anchoring member that securely locks to the bone plate, preventing lateral and rotational movement, using a handle, drill guide tubes, and a bridge portion with a rotatable anchoring member that aligns with screw holes and locks upon rotation, ensuring precise alignment and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a drill guide is used to align with bone plate screw holes, then alignment precision is improved, but the drill guide may move or become unstable during the surgical procedure
Solution Approach 1:
The drill guide is pre-assembled with the bone plate in a predetermined position before the surgical procedure begins. The attachment mechanism is pre-configured to engage with the bone plate's screw holes, ensuring that the drill guide is stable and does not move during the procedure. This preliminary positioning action eliminates the need for continuous adjustment and maintains alignment precision throughout the surgery.
2Stability of the object's composition
If the drill guide is designed to receive screws therethrough, then the bone plate stability is improved, but the drill guide structure becomes more complex
Solution Approach 1:
The drill guide is designed with multi-functionality to serve multiple purposes: it provides alignment guidance for drilling, acts as a stable support structure, and can receive screws therethrough to further stabilize the bone plate. By integrating these multiple functions into a single device, the overall structure remains relatively simple while achieving enhanced stability without requiring separate components for each function.
3Manufacturing precision
If a separate plate holder is used to place the plate at the target site, then the plate positioning is improved, but the number of components and assembly steps increases
Solution Approach 1:
The drill guide and plate holder functions are merged into a single integrated device. The drill guide includes a handle, drill guide tubes, and a bridge portion that can be attached to the bone plate, combining the positioning and drilling guidance functions in one component. This eliminates the need for separate plate holder and drill guide devices, reducing the number of components and simplifying the assembly process while maintaining precise plate positioning.
Data Source
AI summary
The present invention relates to a surgical drill guide having an anchoring mechanism for locking the drill guide to a bone plate. The anchoring mechanism is adapted to be received through an opening of a bone plate and rotated to lock the drill guide to the bone plate. The anchoring mechanism can be rotated by a driver, which has a distal end key that fits into a corresponding socket of on the proximal portion of the anchoring mechanism. The present invention also relates to a kit including a bone plate, a driver, and the drill guide and a method for using the kit to perform surgery.