Side-Entry Glenosphere Inserter With Adjustable Tip Orientation
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Solution Overview
Problem
Traditional surgical insertion devices for reverse shoulder replacement surgery lack adjustability, are limited to straight-on glenosphere insertion, and cannot be universally applied across all sizes, posing risks of damaging surrounding tissue and nerves.
Innovation Solution
A surgical insertion device with a handle, armature, and tip portion, featuring a pivot connection joint, adjustable angled tip, and suture tether for removably attaching the arm to the tip, allowing for side entry insertion and adjustable orientation, providing three-point fixation and maneuverability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional surgical insertion devices with fixed arm/tip orientation are used, then the device structure is simple, but the device cannot provide adjustability for optimal placement and control of the glenosphere
Solution Approach 1:
The insertion device incorporates a pivot connection joint between the handle portion and armature portion, allowing dynamic adjustment of the arm/tip orientation. This mechanical pivot mechanism enables the device to adapt to different insertion angles and glenosphere positions while maintaining structural integrity through the joint's controlled movement capability.
Solution Approach 2:
The device is divided into separable portions including a handle portion, an armature portion with multiple arms, and a tip portion with locking assemblies. This segmentation allows each component to be independently adjusted and configured, providing versatility in glenosphere placement while keeping individual components relatively simple in structure.
2Ease of operation
If traditional surgical insertion devices with fixed orientation are used, then the device is easy to manufacture, but the device fails to provide control to avoid obstacles such as the humerus
Solution Approach 1:
The pivot connection joint enables dynamic repositioning of the armature portion relative to the handle, allowing the surgeon to adjust the insertion trajectory to avoid obstacles like the humerus. The mechanical pivot provides intuitive control while the joint's design maintains structural stability during manipulation.
Solution Approach 2:
The pivot connection joint acts as an intermediary mechanism between the handle portion and armature portion, translating simple rotational input into controlled repositioning of the insertion tip. This intermediate joint provides the necessary degrees of freedom to navigate around obstacles while maintaining a relatively simple overall device structure.
3Adaptability or versatility
If traditional surgical insertion devices are used, then the device structure is specialized for straight-on insertion, but the device cannot be universally applied across all sizes of glenospheres
Solution Approach 1:
The insertion device is designed with universal applicability through its pivot connection joint and adjustable armature portion that can accommodate various glenosphere sizes. The locking assemblies on the tip portion allow secure attachment to different implant configurations, enabling a single device design to serve multiple surgical scenarios without requiring size-specific specialized tools.
Solution Approach 2:
The dynamic pivot joint allows the armature portion to be repositioned to accommodate different glenosphere diameters and positions. This mechanical adaptability enables the same device structure to be universally applied across various glenosphere sizes by simply adjusting the arm orientation rather than requiring multiple specialized device versions.
4Ease of operation
If side entry glenosphere insertion is performed, then access to the surgical site is improved and obstacles are avoided, but the risk of damaging surrounding tissue and nerves increases
Solution Approach 1:
The locking assemblies on the tip portion provide tactile feedback when engaged with the glenosphere, allowing the surgeon to confirm proper positioning and avoid excessive force that could damage surrounding tissue. The mechanical locking mechanism gives real-time information about insertion status, enabling controlled manipulation to prevent harm to nerves and soft tissue while maintaining access through the side entry approach.
Data Source
AI summary
The present disclosure relates in general to surgical instruments and methods of use. More specifically, but not exclusively, the present disclosure relates to an insertion device and a method for use for reverse shoulder replacement surgery. The surgical insertion device of the present disclosure comprises a handle portion, an armature portion, and a tip portion that are designed for side entry glenosphere insertion. In some instances, the surgical insertion device comprises an adjustable arm/tip orientation. In other instances, the surgical insertion device comprises a fixed curved tip orientation. In both instances, the surgical insertion device is designed to improve access to surgical sites while mitigating surrounding tissue and/or nerve damage.