Bone Displacement System With Force Application Fixture
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Solution Overview
Problem
Current osteotomy surgical procedures face limitations in controlled bone displacement, distraction, and fixation, with existing techniques providing inadequate fit and alignment due to manual bone displacement and insufficient fixation methods.
Innovation Solution
A bone displacement system comprising a body with arms and legs connected to bone portions, featuring a force application fixture to apply controlled forces for precise displacement and a plate with screw holes for secure fixation, allowing for improved alignment and attachment of bone portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual bone displacement is used during osteotomy, then the surgical procedure can be performed with simple equipment, but the alignment precision and control of bone displacement are inadequate
Solution Approach 1:
The device is divided into multiple functional segments: a body portion, a first arm with first leg for engaging the first bone portion, a second arm with second leg for engaging the second bone portion, and a force application fixture. This segmentation allows each component to perform a specific function (engagement, displacement, force application) while maintaining overall system manageability and surgical applicability
Solution Approach 2:
The device acts as an intermediary tool between the surgeon and the bone portions. Rather than direct manual manipulation, the surgeon operates the device which then precisely translates these actions into controlled bone displacement and alignment, improving precision while keeping the interface user-friendly
2Adaptability or versatility
If existing distraction techniques are used, then the procedure is simple to perform, but the amount of bone preparation and displacement control is limited
Solution Approach 1:
The device incorporates dynamic capabilities through the force application fixture which can apply controlled forces to displace bone portions, and the articulated arms that can adapt to different bone configurations. This allows the system to handle various distraction and compression scenarios while maintaining ease of operation through standardized attachment procedures
Solution Approach 2:
The device serves multiple functions: it can distract (separate), compress (press together), and precisely align bone portions. The same basic structure with arms, legs, and force application fixture can be used for different osteotomy requirements, making it a versatile tool that replaces multiple specialized instruments
3Manufacturing precision
If existing compression techniques are used, then the procedure is straightforward, but the fit between bone portions is inadequate
Solution Approach 1:
The device applies compression forces locally at the bone interface through the legs that engage each bone portion individually. This localized force application ensures precise fit at the critical interface area while the rest of the device structure remains simple and manageable for surgical use
Solution Approach 2:
The device provides mechanical feedback through its structure as the arms and legs engage the bone portions. The surgeon can feel and observe the alignment and fit being achieved in real-time, allowing for precise adjustments before final fixation, thereby improving bone fit precision without requiring overly complex instrumentation
4Reliability
If wiring fixation is used, then the equipment required is simple, but the fixation accuracy and alignment maintenance are inadequate
Solution Approach 1:
The device performs preliminary alignment and positioning of bone portions before final fixation is applied. By establishing correct alignment and fit during the displacement phase using the articulated arms and force application fixture, the subsequent fixation step becomes more reliable and requires less complex adjustment procedures
Data Source
AI summary
A bone displacement system includes a body having a first arm and a second arm. The first arm is connected to a first leg configured to engage a plate configured to be located on a first bone portion. The second arm is connected to a second leg configured to be connected to a second bone portion. A force application fixture is coupled to the first arm and the first leg and configured to apply a force between the first arm and the first leg. The plate has screw holes aligned to allow screws to connect the plate to the first bone portion and the second bone portion after a movement of the first bone portion relative to the second bone portion by the force applied by the force application fixture.