Bone Cut Guide with Anchoring and Saw Slot Mechanism
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Solution Overview
Problem
Current methods for joining and adjusting bone pieces during surgical procedures lack effective systems and methods for accurately aligning and cutting bones at desired angles, particularly in orthopedic surgery for correcting deformities like those in the human foot.
Innovation Solution
A bone cut guide system comprising a stem with an anchoring portion and a cut body that includes slots for a saw to cut bones, utilizing K-wires for alignment and stabilization, allowing precise adjustment and cutting of bone pieces to achieve desired angles and alignments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional methods are used for joining bone pieces, then the surgical procedure can be completed, but the alignment precision and angle control between bone pieces are insufficient
Solution Approach 1:
The bone cut guide is divided into distinct functional segments: an anchoring portion for securing the device to bone, a stem for positioning, and a cut body with slots for saw guidance. This segmentation allows each component to perform its specific function optimally while maintaining overall alignment precision without requiring an overly complex integrated system.
Solution Approach 2:
The bone cut guide is positioned and anchored to the bone before the actual cutting operation. K-wires are inserted through the anchoring portion to secure the guide in the desired position and orientation beforehand, ensuring that subsequent cuts will achieve the precise alignment and angles required, rather than attempting to adjust alignment during the cutting process.
2Adaptability or versatility
If adjustable angle systems are implemented for bone cutting, then the flexibility for correcting deformities improves, but the operational complexity increases
Solution Approach 1:
The bone cut guide incorporates adjustable components that allow the surgeon to modify the position and orientation of the cut body relative to the anchoring portion. The stem can be positioned at different angles and depths, and the cut slots can be oriented to guide saws at various angles, providing adaptability for different deformity corrections while maintaining a relatively simple overall structure that does not require complex mechanisms.
Solution Approach 2:
The bone cut guide is designed as a multi-functional device that can accommodate different cutting angles, positions, and orientations through its adjustable stem and multiple cut slots. A single device can perform multiple functions including anchoring, positioning, angle adjustment, and guiding various saw blade orientations, eliminating the need for multiple specialized tools and simplifying the surgical workflow.
3Manufacturing precision
If precise bone cutting is achieved through guided systems, then the cutting accuracy improves, but the device structure becomes more complex
Solution Approach 1:
The bone cut guide serves as an intermediary device between the surgeon's positioning actions and the actual cutting process. The guide's anchored position and oriented cut slots mediate the transformation of rough positioning into precise cutting paths, ensuring accurate cuts without requiring the entire device to be highly complex. The simplicity of the guide structure is offset by its precise pre-manufactured geometry that ensures cutting accuracy.
Solution Approach 2:
The precise alignment and orientation required for accurate cutting are established in advance through the anchoring portion and stem positioning before the cutting operation begins. The cut slots are pre-formed with precise angles and orientations, so when the guide is securely anchored, the cutting accuracy is automatically ensured without requiring complex real-time adjustment mechanisms during the cutting process.
Data Source
AI summary
A bone cut guide includes a stem having a stem longitudinal axis and an anchoring portion proximal to the stem and connected to the stem by a cut body. The anchoring portion includes an anchoring opening configured to receive a wire therethrough to connect the anchoring portion to a bone. The cut body includes a cut slot configured to receive a saw to cut the bone.