Dual-Threaded Bone Prosthesis for Joint Stabilization
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Solution Overview
Problem
Conventional methods for stabilizing dysfunctional bone structures, such as sacroiliac and intervertebral joints, often require invasive surgery, leading to increased operative time, pain, and post-surgical complications, and may result in prosthesis displacement due to ineffective engagement with the bone structure.
Innovation Solution
A bone structure prosthesis with an elongated threaded member featuring a non-threaded central region and helical threads at both ends, which includes an osteogenic composition and slits for tissue regeneration, allowing secure engagement and minimally invasive stabilization of dysfunctional joints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bone screws and pins are used to stabilize dysfunctional bone structures, then stabilization is achieved, but operative time increases and post-surgical complications occur
Solution Approach 1:
The prosthesis is divided into multiple threaded ends (first threaded end and second threaded end) with a non-threaded central region, allowing simultaneous engagement with multiple bone structures. This segmentation enables faster installation compared to sequential placement of multiple separate fasteners, reducing operative time while maintaining stabilization effectiveness.
Solution Approach 2:
Multiple fastening functions are merged into a single prosthesis structure with threaded ends at both ends of a central region. This combined structure stabilizes multiple bone structures simultaneously in one surgical step, reducing operative time and minimizing post-surgical complications associated with multiple separate procedures.
2Reliability
If conventional bone screws and pins are used to stabilize dysfunctional bone structures, then stabilization is achieved, but tissue damage increases
Solution Approach 1:
The prosthesis features localized threading at the ends with a non-threaded central region, concentrating the engagement and stabilization function at specific locations while leaving the central portion smooth. This local quality design minimizes unnecessary tissue disruption during insertion and reduces overall tissue damage while maintaining effective stabilization at the bone interface.
3Reliability
If conventional fastening implements are used to stabilize dysfunctional bone structures, then stabilization is achieved, but prosthesis displacement occurs due to ineffective engagement
Solution Approach 1:
The prosthesis is segmented into multiple threaded ends that can engage with separate bone structures simultaneously. This multi-point engagement distributes the stabilizing force across multiple locations, preventing prosthesis displacement and ensuring position stability while maintaining effective stabilization of the dysfunctional bone structure.
Solution Approach 2:
The helical threads on the prosthesis ends provide curved, progressive engagement with the bone structures. This spiral geometry allows for gradual seating and secure anchoring, enhancing the stability of prosthesis position and preventing displacement while achieving reliable stabilization.
Data Source
AI summary
Methods are described for stabilizing dysfunctional bone structures. The methods include the step of providing prostheses having an elongated body with dual, i.e., first and second, threaded ends and an intervening central region. The threaded ends have helical threads wound thereon that extend from the intervening central region to the ends of the first and second threaded ends. The methods further include the steps of creating a pilot opening in the dysfunctional bone structures and inserting the prostheses into the pilot opening and, thereby dysfunctional bone structure.