S-Shaped Interspinous Implant Spinal Stabilization
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Solution Overview
Problem
Existing interspinous implants fail to effectively stabilize the spine and limit overextension between spinous processes, leading to instability and painful wear and tear, especially in conditions like damaged intervertebral disks or spinal stenosis.
Innovation Solution
An S-shaped interspinous implant with U-shaped extensions that engage spinous processes, providing stability and limiting overextension, featuring a resilient design with adjustable configurations and anti-slip formations for secure fixation, made from biocompatible materials like titanium or PEEK, allowing for distribution of spine loads and promotion of vertebral body fusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing interspinous implants are used, then the implant structure is simple, but the implant fails to effectively stabilize the spine and limit overextension between spinous processes
Solution Approach 1:
The implant is divided into multiple functional segments: a resilient S-shaped body for load distribution and shock absorption, U-shaped extensions for secure engagement with spinous processes, and anti-slip formations for preventing displacement. This segmentation allows each component to perform its specific function optimally while working together to provide comprehensive spinal stabilization.
Solution Approach 2:
The resilient S-shaped body incorporates dynamic properties that allow it to flex and deform under load, enabling the implant to adapt to spinal movements while maintaining stabilization. The dynamic design allows the implant to absorb mechanical energy during overextension events rather than acting as a rigid barrier, improving reliability without requiring excessive structural complexity.
2Reliability
If existing interspinous implants are used, then the implant design is straightforward, but the implant allows overextension and excessive spacing between spinous processes
Solution Approach 1:
The implant utilizes changes in the resilient body's physical parameters (shape, flexibility, material properties) to limit overextension. The S-shaped configuration and U-shaped extensions are designed with specific geometric parameters that engage the spinous processes at optimal angles, preventing excessive spacing while allowing normal spinal motion. The anti-slip formations modify the friction parameters between the implant and bone to prevent slippage during movement.
3Object-affected harmful factors
If existing interspinous implants are used, then the implant structure is uncomplicated, but the implant causes painful wear and tear on spinous processes
Solution Approach 1:
The resilient S-shaped body acts as a flexible element that distributes mechanical loads across the spinous processes rather than concentrating stress at single points. This flexible design reduces painful wear and tear by allowing controlled deformation that absorbs impact forces while the U-shaped extensions and anti-slip formations provide secure but gentle engagement with the bone surfaces.
Solution Approach 2:
The resilient body is designed to provide cushioning protection before harmful wear and tear can occur. The material properties and geometric configuration are selected to absorb and dissipate mechanical energy during normal spinal movements and overextension events, preventing the kind of repetitive stress that causes painful wear on the spinous processes.
4Strength
If existing interspinous implants are used, then the implant is simple to manufacture, but the implant fails to distribute spine loads effectively
Solution Approach 1:
The S-shaped body introduces a curved, three-dimensional geometry that allows loads to be distributed across multiple dimensions and planes. The U-shaped extensions add another dimensional element for engagement, creating a multi-dimensional load distribution system that effectively transfers and disperses spinal forces across the implant structure and onto the spinous processes, preventing stress concentration.
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
The implant effectively stabilizes the spine, reduces overextension, and promotes vertebral body fusion, alleviating conditions of spinal instability and pain by distributing loads and providing secure engagement with spinous processes, while being adaptable for various spinal levels and configurations.
Implementation Method 1
The resilient body can include a first portion having first and second ends and being substantially U-shaped, a second portion having first and second ends and being substantially U-shaped, and an intermediate portion connecting the second end of the first portion and the first end of the second portion
Data Source
AI summary
An interspinous implant. The interspinous implant includes a resilient S-shaped body having first and second saddle-shaped portions. First and second stirrup-shaped brackets extend in opposite directions from the first and second saddle-shaped portions for engaging first and second spinous processes.