Variable Angle Orthopedic Anchor Assembly with Locking Mechanism
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Solution Overview
Problem
Current bone fixation techniques in orthopedic surgery are time-consuming and difficult due to the need for multiple bone anchors to securely fasten orthopedic devices to bone tissue, especially when there are variances in angle and position.
Innovation Solution
A variable or fixed angle anchor assembly with a locking mechanism that includes a biocompatible anchor with a spherical head and resilient finger elements, allowing for secure connection and quick locking to orthopedic devices, featuring a thread portion for self-starting and debris clearance, and a locking mechanism providing audible and tactile feedback for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple bone anchors are used to securely fasten orthopedic devices to bone tissue, then the reliability of fixation is improved, but the procedural time and complexity increase
Solution Approach 1:
The patent combines multiple anchor elements into a single integrated assembly where a first bone anchor and a second bone anchor are coupled together through a shared locking mechanism and common insertion device, allowing simultaneous insertion and fixation of multiple anchors in one procedural step rather than requiring separate insertion procedures for each anchor
Solution Approach 2:
The anchor assembly is designed with a universal locking mechanism that can securely fasten both the first bone anchor and the second bone anchor to the orthopedic device, and the assembly can be inserted at various angles and positions while maintaining secure fixation, reducing the need for multiple different anchor types or repeated insertion attempts
2Adaptability or versatility
If multiple bone anchors are used to accommodate angle and position variances, then the adaptability of fixation is improved, but the procedural difficulty increases
Solution Approach 1:
The anchor assembly incorporates a dynamic locking mechanism that allows the first bone anchor and second bone anchor to be secured to the orthopedic device at variable angles and positions, with the locking mechanism accommodating angular adjustments while maintaining secure fixation throughout the range of motion required for different anatomical configurations
Solution Approach 2:
The anchor assembly is segmented into distinct components (first bone anchor, second bone anchor, locking mechanism, and insertion device) that can be independently positioned and angled during insertion, allowing each component to be optimized for its specific anatomical location while maintaining overall system simplicity through their coordinated integration
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 rapid and secure fixation of orthopedic devices to bone tissue, accommodating angle and position variances, with enhanced rigidity and strength, and facilitating easy adjustment and locking, thereby reducing procedural complexity and time.
Implementation Method 1
a head portion configured and dimensioned to be received in the cavity... including four resilient finger elements
Implementation Method 2
a shank portion extending from the neck portion and including a thread portion
Data Source
AI summary
In an exemplary embodiment, the present invention provides an anchor assembly that can be used for the fixation or fastening of orthopedic devices or instruments to bone tissue. In particular, the present invention preferably provides a variable angle or fixed angle anchor assembly that is able to securely connect the orthopedic device to bone tissue even when there is a variance in the angle and position of the assembly with respect to the device. Furthermore, in an exemplary embodiment, the present invention provides an anchor assembly having a locking mechanism that will quickly and easily lock the anchor assembly with respect to the orthopedic device.