Adjustable Arthroplasty Device Translation Coupler
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Solution Overview
Problem
Current knee arthroplasty procedures are time-consuming and costly due to the need for complicated and expensive trial instruments and procedures, which hinder efficient and cost-effective surgical implantation of knee implants.
Innovation Solution
The development of adjustable arthroplasty devices and systems that include a bone anchoring component with a translation coupler and a locking mechanism, allowing for infinite adjustment and secure locking of the implant's position relative to the bone, eliminating the need for trial instruments and procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional knee arthroplasty procedures are performed using conventional trial instruments, then the implant positioning can be achieved, but the surgical procedure becomes time-consuming and costly
Solution Approach 1:
The patent extracts and eliminates the need for separate trial instruments by integrating the positioning functionality directly into the implant components. The prosthesis and bone anchoring component include built-in attachment features that provide positioning information without requiring external trial devices, thereby reducing surgical time while maintaining positioning accuracy.
Solution Approach 2:
The attachment features serve multiple functions: they simultaneously provide mechanical coupling between the prosthesis and bone anchoring component, and provide positioning information for accurate implant placement. This multi-functionality eliminates the need for separate trial instruments, reducing both time and cost while maintaining positioning precision.
2Measurement precision
If traditional trial instruments are used for knee arthroplasty, then implant positioning can be achieved, but the procedure becomes costly and complicated
Solution Approach 1:
The patent removes the complexity of trial instruments by integrating positioning functionality into the implant components themselves. The attachment features provide all necessary positioning information without requiring external trial devices, simplifying the overall procedure while maintaining positioning accuracy.
Solution Approach 2:
The attachment features perform multiple functions simultaneously: mechanical coupling and positioning. This eliminates the need for separate trial instrumentation, reducing procedural complexity while maintaining the ability to achieve accurate implant positioning.
3Productivity
If adjustable attachment features are used to eliminate trial instruments, then surgical efficiency is improved, but the device structure becomes more complex
Solution Approach 1:
The attachment features are designed to perform multiple functions with a single structure: providing mechanical coupling between components and simultaneously providing positioning information. This multi-functionality improves surgical efficiency by eliminating trial instruments while the integrated design minimizes the increase in structural complexity.
Solution Approach 2:
The attachment features are self-contained and provide positioning information inherently through their design, without requiring external trial instruments or additional positioning devices. This self-service capability improves surgical efficiency while keeping the device structure relatively simple through integration.
Data Source
AI summary
An arthroplasty system may include an arthroplasty prosthesis with a joint-facing side having an articular surface and a bone-facing side having a prosthesis attachment feature, a bone anchoring component, and a component attachment feature configured to translatably couple the bone anchoring component to the prosthesis attachment feature. In a first unlocked configuration, the component attachment feature and the prosthesis attachment feature may be translatably coupled with each other enabling the bone anchoring component to translatably move with respect to the bone-facing side of the arthroplasty prosthesis. In a second locked configuration, at least one of the component attachment feature and the prosthesis attachment feature may expand and secure a relative position of the component attachment feature to the prosthesis attachment feature and prevent the bone anchoring component from translatably moving relative to the bone-facing side of the arthroplasty prosthesis.