Endoscopic Cage Handle for Spinal Fusion Visualization
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Solution Overview
Problem
During spinal fusion surgery, surgeons face challenges in visualizing the insertion path and surrounding nerves due to the lack of direct visualization with conventional cage handles, relying heavily on X-ray images which can be problematic.
Innovation Solution
A cage handle integrated with a compact endoscopic camera and optical fiber, allowing real-time visualization of the insertion area by attaching a camera and light source to the handle, enabling clear monitoring of the surgical site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional cage handle is used for spinal fusion surgery, then the surgery can be performed with a small incision, but the surgeon cannot clearly view the insertion path and surrounding nerves
Solution Approach 1:
The patent merges the cage handle with endoscopic components (camera, optical fiber, light source) into an integrated endoscopic cage handle. This combination allows the surgeon to directly visualize the insertion path and surrounding nerves through the handle itself, eliminating the need for separate visualization systems and enabling real-time observation during cage insertion.
Solution Approach 2:
The cage handle is designed to perform multiple functions: it serves as both the insertion tool for the spinal cage and the endoscopic visualization system. The handle integrates the camera, optical fiber for light transmission, and imaging capabilities, allowing a single device to provide both mechanical insertion and optical visualization functions simultaneously.
2Loss of information
If X-ray images are used to guide cage insertion, then the surgeon can see the insertion path, but the images lack detail and require high surgeon attention
Solution Approach 1:
The patent replaces the indirect X-ray imaging system with a direct optical visualization system integrated into the cage handle. Instead of relying on radiographic images that require interpretation and constant monitoring, the endoscopic camera provides direct real-time visual feedback of the insertion path and surrounding structures, making the procedure more intuitive and less demanding on surgeon attention.
3Loss of information
If an endoscope is inserted separately to visualize the surgical site, then the surgeon can see the cage position, but the procedure becomes more complex
Solution Approach 1:
The patent eliminates the need for a separate endoscope by integrating all endoscopic functions directly into the cage handle. The camera, optical fiber, and light source are incorporated into the handle structure itself, allowing visualization through the handle that is already present in the surgical field. This integration reduces the number of separate devices needed and simplifies the overall surgical system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate and clear visualization of the affected area during surgery, reducing the risk of nerve damage and improving surgical precision with the ability to see obstacles in real-time.
Implementation Method 1
an optical fiber surrounding and arranged on an outer circumference of the lens
Data Source
AI summary
The cage handle with an endoscope function of the present invention is equipped with a lens and an optical cable so that a surgeon can perform an interbody fusion cage surgery, viewing the image of the front of a cage accurately, clearly. Since a separate endoscope or X-ray is not used, the surgery can be performed more easily, efficiently, and economically.