Spinal Implant Threadless Connection for Versatile Fixation
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Solution Overview
Problem
Existing spinal implants and insertion devices lack versatility and ease of use, particularly in difficult anatomical circumstances and revision surgeries, where they require multiple surgical approaches and fixation methods.
Innovation Solution
The development of a spinal implant with a multi-functional connection portion that allows for threadless connection with various holding members, including insertion devices and plate assemblies, enabling easy attachment and detachment, and accommodating different surgical approaches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing spinal implants use traditional connection methods, then the implant structure is simple, but the versatility and ease of use are reduced
Solution Approach 1:
The connection portion is designed with a universal interface that can accommodate multiple types of holding members including insertion devices and plate assemblies. The hollow space with elongate opening serves multiple functions: receiving engagement portions, preventing removal through orientation-dependent geometry, and supporting various surgical approaches, thereby achieving multi-functionality without requiring multiple separate connection structures.
Solution Approach 2:
The connection portion is segmented into distinct functional zones: the hollow space for accommodation, the elongate opening for insertion, and the orientation-dependent retention mechanism. This segmentation allows each element to perform its specific function independently while contributing to the overall versatility of the implant system.
2Ease of operation
If existing spinal implants use complex fixation methods, then the implant provides sufficient stability, but the ease of operation is reduced
Solution Approach 1:
The connection portion employs a self-locking mechanism where the engagement portion, once inserted through the elongate opening in the correct orientation, is automatically prevented from removal through its geometric configuration. The second orientation prevents removal without requiring additional locking steps or complex fixation procedures, achieving self-service functionality that maintains both ease of operation and stability.
3Adaptability or versatility
If existing spinal implants require multiple surgical approaches, then the implant can handle difficult anatomical cases, but the device complexity and procedure time increase
Solution Approach 1:
The connection portion with its universal interface design enables a single implant type to be used across multiple surgical approaches and difficult anatomical cases. The ability to accommodate various holding members and surgical instruments through one standardized connection structure eliminates the need for multiple specialized implants, thereby reducing procedure time and complexity while expanding the field of application.
Data Source
AI summary
An intervertebral implant includes a body having a first face, a second face connected to and opposite the first face, a width and a length at least as long as the width that extend around the first and second faces, and first and second connection portions for connecting the implant to a separate holding member. The first and second connection portions each includes a hollow space accessible from outside the body through an opening formed between the first and second faces. The openings are elongate and extend away from one another around the implant from a same first side that defines the length of the body to respective second and third sides opposite to one another that define the width of the body, and are arranged such that the first and second connection portions are simultaneously engageable by the holding member.