Bone Cutting Guide With Translating Shaft For Precision Osteotomy
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Solution Overview
Problem
Anatomically misaligned bones require surgical intervention for correct alignment to reduce patient discomfort and improve quality of life, but existing methods lack effective guidance for precise bone cutting.
Innovation Solution
A bone cutting guide system with a support housing a shaft that translates relative to the support, featuring main guide members with opposed or single cutting surfaces, fixation members for secure attachment to the bone, and adjustable components for precise alignment and cutting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional bone cutting methods are used, then surgical procedures can be performed, but cutting precision and alignment accuracy are insufficient
Solution Approach 1:
The cutting guide system is divided into multiple independent components: a support structure that attaches to the bone, a shaft that translates relative to the support, and a main guide member with cutting surfaces. This segmentation allows each component to be optimized independently for precision while maintaining overall system manageability.
Solution Approach 2:
The shaft is housed within the support structure, and the main guide member is carried on the shaft. This nested arrangement allows the cutting guide to maintain a compact profile while providing multiple functional elements, reducing overall device complexity despite the precision capabilities.
2Adaptability or versatility
If a fixed cutting guide is used, then structural stability is maintained, but adaptability for different cutting positions and angles is limited
Solution Approach 1:
The shaft is configured to translate relative to the support along a translation axis, transforming the static guide into a dynamic system. This allows the main guide member to be positioned at multiple locations and orientations while the support remains stably attached to the bone, achieving both adaptability and stability.
Solution Approach 2:
The support is first attached to the bone to establish a stable reference frame. Then the shaft and main guide member are positioned and adjusted to the desired cutting location and angle before the actual cutting operation, ensuring both stability during attachment and adaptability during positioning.
3Measurement precision
If manual bone cutting is performed without guidance, then procedural simplicity is maintained, but cutting accuracy and alignment precision deteriorate
Solution Approach 1:
The main guide member with its cutting guide surfaces acts as an intermediary between the surgeon's manual cutting action and the bone. The guide surfaces receive and direct the cutting member, translating simple manual movements into precise cutting paths that achieve high alignment accuracy without requiring complex automated systems.
Solution Approach 2:
The cutting guide system is designed to be self-aligning through its mechanical structure. The support attaches to anatomical landmarks on the bone, and the shaft translates along a defined axis, allowing the system to automatically establish the correct cutting orientation without requiring complex external measurement or adjustment procedures.
Data Source
AI summary
A bone cutting guide may include a support that contains a shaft movable relative to the support. The shaft may carry a guide member having one or more cut guides through which a clinician inserts a cutting member to cut bone positioned under the guide cut guides. In operation, a clinician may fixate the support of the bone cutting guide to a bone and translate the guide member until the one or more cut guides are positioned at a desired cut location. The clinician may then perform a cut through the cut guide.