Guide Wire Handle Locking Mechanism for Spine Surgery
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Solution Overview
Problem
Minimally invasive spine surgery instruments face challenges in maintaining precise control and stability of guide wires during procedures, leading to potential human error and obstruction for surgeons.
Innovation Solution
The development of a guide wire management system with a locking mechanism that secures the guide wire in place, allowing for controlled rotation and insertion of bone tap screws, and a modular screw head with a malleable zone for flexible retraction of soft tissue, along with specialized tools like the all-in-one guide wire tool and retractor flex rod passage for enhanced precision and access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a guide wire locking mechanism is implemented, then control and stability of guide wire is improved, but device complexity increases
Solution Approach 1:
The guide wire locking mechanism is designed to be self-actuating through a cam lever system. When the cam lever is moved between locked and unlocked positions, it automatically engages or disengages the cam lobe with the guide wire, eliminating the need for separate actuators or complex control systems while maintaining reliable locking functionality
Solution Approach 2:
The cam lever acts as an intermediary mechanism between the surgeon's manual operation and the guide wire locking function. The cam lobe translates the simple linear or rotational movement of the lever into a reliable locking action on the guide wire, providing mechanical advantage and precise control without requiring complex electronic or hydraulic systems
2Manufacturing precision
If specialized tools like all-in-one guide wire tool are used, then surgical precision is improved, but ease of operation deteriorates
Solution Approach 1:
The all-in-one guide wire tool integrates multiple surgical functions including guide wire placement, bone tap insertion, and screw delivery into a single instrument. This multi-functional design allows the surgeon to perform sequential procedures without changing instruments, maintaining precision while actually improving ease of operation by reducing tool changes and procedural steps
Solution Approach 2:
The tool employs a nested structure where the bone tap is positioned within the guide wire tool, and the guide wire can be inserted through the tool's central axis. This nesting arrangement allows compact storage and streamlined operation, with each component accessible in a logical sequence that simplifies the surgical workflow while maintaining precise positioning capabilities
Data Source
AI summary
Disclosed are various instruments and implants used in minimally invasive spine surgery. Disclosed is a cannulated probe, a guide wire handle; a guide wire handle having a locking mechanism, an all-in-one guide wire tool; a retractor flex rod passage; or a tab break tool.