Vibratory Prosthesis Installation System for Hip Replacement
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Solution Overview
Problem
Current total hip replacement procedures face challenges in achieving precise and consistent placement and orientation of the acetabular component due to the use of crude tools and manual impact methods, which can lead to complications and increased risks for surgeons, especially those with less experience.
Innovation Solution
The development of a system and method utilizing vibratory tools, such as gun-like devices, that allow for precise and controlled insertion and positioning of prosthetic components using pneumatic and electric motor implementations, enabling surgeons to accurately place and orient acetabular cups without manual impact, thereby reducing the risk of misalignment and bone fracture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automated and computer-assisted navigation tools are employed to determine correct orientation and placement of the acetabular component, then measurement precision is improved, but manufacturing precision deteriorates because the surgeon must still use a hammer/mallet to physically strike the pin or alignment rod with uncontrolled force and location
Solution Approach 1:
The patent replaces the manual hammer/mallet mechanical impacting system with an automated impact device that receives commands from the computer-assisted navigation system. The automated device delivers controlled impacts to the acetabular component, translating the navigation system's precise orientation data into precise physical placement actions, thereby resolving the contradiction between measurement precision and manufacturing precision.
2Reliability
If a surgeon with more experience performs the procedure, then reliability of correct placement is improved, but device complexity increases as more advanced tools and techniques are required
Solution Approach 1:
The patent implements a self-service system where the computer-assisted navigation system and automated impact device work together autonomously to ensure correct placement. The system provides real-time guidance and automated correction, allowing less experienced surgeons to achieve reliable results without requiring extensive manual skill or complex advanced techniques.
3Productivity
If larger impacting forces are applied to the prosthesis by the mallet striking the rod, then productivity of installation is improved, but object-generated harmful factors increase due to risk of fracturing and shattering the acetabulum
Solution Approach 1:
The patent employs a dynamically controlled automated impact device that adjusts impacting forces in real-time based on feedback from the computer-assisted navigation system and bone density measurements. The system delivers optimal forces for efficient installation while automatically reducing forces when bone fragility is detected, thereby maintaining productivity while minimizing bone fracture risk.
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
This approach improves the likelihood of favorable outcomes in total hip replacement procedures by allowing less experienced surgeons to achieve results comparable to those of experienced surgeons, with reduced risk of complications and improved precision in prosthetic placement and orientation.
Implementation Method 1
The applied series of pulses are configured to impart a vibratory motion to the secured prosthesis enabling an installation of the secured prosthesis into the portion of bone
Implementation Method 2
employing an oscillation engine including a controller coupled to a pneumatic or electric motor implementation
Data Source
AI summary
A system and method for allowing any surgeon, including those surgeons who perform a fewer number of a replacement procedure as compared to a more experienced surgeon who performs a greater number of procedures, to provide an improved likelihood of a favorable outcome approaching, if not exceeding, a likelihood of a favorable outcome as performed by a very experienced surgeon with the replacement procedure, including installation and orientation of a prosthesis into tissue of a patient as well as construction of a prosthetic assembly to be installed into such tissue.