Laminoplasty Hinges with Adjustable Planar and Angular Orientation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current devices for laminoplasty surgery, particularly in open door laminoplasty procedures, lack the ability to adjust in size and orientation, leading to inventory inefficiencies and requiring material bending to fit the surgical site.
Innovation Solution
Surgical implant devices with a base and an extension that allow for adjustable planar and angular orientations, featuring pivotable and movable components to adapt to various surgical site configurations, including a T-shaped extension with oppositely extending arms that span between slots on the base for multiple orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed-size devices are used, then device structure is simple, but the device cannot adapt to different surgical sites and requires bending material to fit
Solution Approach 1:
The device incorporates a hinge joint that enables dynamic adjustment of the extension relative to the base, allowing the device to adapt to different angular orientations at the surgical site. The extension can be positioned at multiple angles while maintaining structural integrity, eliminating the need to bend the device material to fit different configurations.
Solution Approach 2:
The device is divided into separate modular components: a base portion and an extension portion connected by a hinge. This segmentation allows independent positioning of each component, enabling the device to accommodate various surgical site geometries while maintaining a relatively simple overall structure.
2Adaptability or versatility
If multiple device sizes are maintained in inventory, then different surgical sites can be accommodated, but inventory complexity and cost increase
Solution Approach 1:
The device is designed as a universal platform where the base and extension can be configured in multiple arrangements through the hinge mechanism. A single device design can accommodate various surgical site requirements by adjusting the extension angle and position, eliminating the need to maintain multiple specialized device sizes in inventory.
Solution Approach 2:
The hinge connection enables dynamic reconfiguration of the device geometry during surgery, allowing the same device to adapt to different effective lengths and orientations needed for various surgical sites, replacing the need for multiple fixed-size devices.
3Shape
If the device is bent to fit the surgical site, then the device can conform to the lamina, but the material strength may be compromised
Solution Approach 1:
Instead of bending the device material to achieve conformity, the hinge mechanism provides dynamic angular adjustment that allows the extension to be positioned at the correct angle relative to the base. This maintains the full strength of the device materials while achieving the desired conformal fit to the lamina geometry.
Solution Approach 2:
By segmenting the device into base and extension components connected by a hinge, the device can achieve complex shapes and conformal fits through the relative positioning of segments rather than by deforming the material itself, preserving material strength.
Data Source
AI summary
A surgical implant device configured to adjust in planar orientation or angular orientation or both to correspond to the structure of the lamina to be spanned at the site of a cut of the laminoplasty surgery. The device includes a base having slots extending adjacent thereto, and an extension having a head configured to be adjustably positionable within the slots.