Joint Implant With Rotatable Cutters and Polyaxial Adapter
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Solution Overview
Problem
Current joint arthrodesis systems require multiple surgical tools and steps, complicating procedures such as cervical and sacroiliac fusions, and lack a biocompatible construction with a cutting edge and rotatable cutters for efficient joint stabilization and fusion.
Innovation Solution
A joint implant with a cutting edge and rotatable cutters connected to a shaft, allowing for cutting in both clockwise and counterclockwise directions, integrated with a polyaxial adapter for easy rotation and a conduit with windows for delivering substances, suitable for both posterior and lateral approaches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple surgical tools and steps are used in current joint arthrodesis systems, then cutting and stabilization functions can be achieved, but the surgical procedure becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple surgical functions (cutting, stabilization, distraction) into a single joint implant device. The implant integrates a cutting edge for initial bone contact, a rotatable shaft with cutters for cartilage removal, and distraction capabilities for joint stabilization, eliminating the need for multiple separate surgical tools and steps.
Solution Approach 2:
The joint implant is designed as a multi-functional device that can perform various surgical operations. It includes a cutting edge for bone engagement, rotatable cutters for cartilage removal in both clockwise and counterclockwise directions, and distraction mechanisms for joint stabilization, allowing a single device to replace multiple specialized tools.
2Ease of operation
If a single joint implant with multiple functions is used, then surgical procedure is simplified, but the device structure becomes more complex
Solution Approach 1:
The implant is divided into distinct functional segments: a cutting edge portion for initial bone contact, a rotatable shaft with cutters for cartilage removal, and a distraction mechanism for joint stabilization. This segmentation allows each component to perform its specific function efficiently while being part of an integrated device.
Solution Approach 2:
The implant incorporates dynamic elements, specifically the rotatable shaft that can rotate in both clockwise and counterclockwise directions to engage cutters for cartilage removal. This dynamic capability allows the device to adapt its cutting direction as needed while maintaining a relatively simple overall structure.
3Productivity
If rotatable cutters are added to the implant, then cutting efficiency improves, but the device complexity increases
Solution Approach 1:
The rotatable cutters operate through periodic rotation in both clockwise and counterclockwise directions, allowing efficient cartilage removal through repeated cutting passes. This periodic rotational action enhances cutting productivity while keeping the mechanism relatively simple through the use of a bidirectional shaft rather than complex multi-directional actuators.
Data Source
AI summary
A joint implant adapted for use in joint surgeries. Among other things, the joint implant has an anterior cutting edge and a rotatable cutter supported by a rotatable shaft. A polyaxial adapter can be incorporated into the current joint implant. The present implant can include a rotatable shaft that has a conduit and windows.