Shoulder Joint Replacement With Flexible Ligament Bands
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Solution Overview
Problem
Conventional joint replacement systems fail to stabilize the shoulder joint effectively in cases where the rotator cuff is damaged or lacking, leading to instability and inability to elevate the arm, as they do not replicate the natural ligament support.
Innovation Solution
A joint replacement system comprising a glenoid and humeral component with flexible bands or mesh structures that link and tension between the components to replicate the natural ligament support, providing stability and preventing dislocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional joint replacement is used, then pain relief is achieved, but the shoulder joint remains unstable and arm elevation is impossible
Solution Approach 1:
The patent employs flexible bands made of soft, flexible material that can be threaded through openings in the glenoid and humeral components. These bands provide ligamentous support and stability to the shoulder joint replacement, preventing dislocation while allowing the joint to function. The flexible bands replicate the stabilizing function of natural ligaments in patients with rotator cuff damage.
2Ease of operation
If a reverse shoulder replacement is used, then arm elevation is enabled, but the complex mechanics and additional procedures are required
Solution Approach 1:
The patent divides the stabilization function into separate flexible bands that can be independently threaded through specific openings in the glenoid and humeral components. This segmentation allows for simplified installation compared to reverse shoulder replacement, as the bands can be placed through pre-formed openings without requiring complex reverse anatomy procedures.
Solution Approach 2:
The flexible bands act as intermediary elements that provide ligamentous support between the glenoid and humeral components. These bands mediate the connection and stabilization function that would otherwise require complex reverse shoulder replacement mechanics, enabling arm elevation with simpler overall device architecture.
3Stability of the object's composition
If flexible bands are added to provide stability, then joint stabilization is improved, but device complexity increases
Solution Approach 1:
The flexible bands are constructed from soft, flexible material that can be easily threaded through openings in the glenoid and humeral components. This flexibility allows the bands to conform to the joint anatomy and provide natural ligamentous support without adding rigid structural complexity to the replacement device.
Solution Approach 2:
The flexible bands can be adjusted in terms of their mechanical properties and tension characteristics to optimize stabilization. The bands' flexibility and tension parameters can be modified to match the patient's specific needs, providing stabilization without requiring complex adjustable mechanisms or multiple components.
Data Source
AI summary
Various joint replacements are disclosed herein, as are methods of use thereof. The joint replacements can have a flexible band or multiple flexible bands that can link together a first part of the joint replacement and a second part of the joint replacement. The flexible band or bands can be tensioned to establish proper tension in the patient's joint. In certain circumstances, the joint replacement can be a shoulder joint replacement.