Joint Repair Navigation Guide Frame with Radiopaque Markers
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Solution Overview
Problem
Current surgical methods for treating osteoarthritis, such as HTO and TKA, are invasive, have limited durability, and provide inconsistent pain relief, while conventional targeting and location methods are crude, making it difficult for surgeons to accurately navigate and position devices near bone defects during joint surgery.
Innovation Solution
The development of navigation and positioning instruments that use anatomical landmarks to guide the precise placement of devices near bone defects, featuring a guide frame with radiopaque markers and multiple device portals for accurate and controlled delivery of implants or treatment tools, allowing for quick and repeatable access to the target area without obstructing the surgical site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional targeting and location methods are used, then the surgical procedure is simple to perform, but the precision of device placement near bone defects is poor
Solution Approach 1:
The navigation instrument is divided into multiple components: a guide frame with multiple device portals, each portal providing a specific trajectory. This segmentation allows precise targeting of bone defects from various angles while maintaining a manageable instrument structure that can be assembled and adjusted during surgery.
Solution Approach 2:
The guide frame acts as an intermediary device between the surgeon and the bone defect. It provides a reference framework that mediates the placement of delivery devices, enabling precise positioning without requiring the surgeon to directly visualize or manually position each device at the target site.
2Manufacturing precision
If a guide frame with multiple components is used to improve positioning accuracy, then the precision of navigation is improved, but the complexity of the instrument increases
Solution Approach 1:
The guide frame is designed as a multi-functional instrument that can accommodate multiple different delivery devices through its various device portals. Each portal can receive different types of devices (drills, implants, injection needles), allowing a single guide frame structure to serve multiple surgical functions and target different bone defects systematically.
3Reliability
If precise navigation instruments are used to treat bone defects, then the treatment effectiveness is improved, but the procedure time and complexity increase
Solution Approach 1:
The guide frame is pre-positioned on the bone surface before device insertion, establishing a reference framework in advance. This preliminary action allows multiple subsequent device deliveries to be made quickly and accurately without requiring repeated positioning or alignment steps, thereby reducing overall procedure time while maintaining high precision.
Data Source
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AI summary
An instrument for controlled delivery of a device to a target area near a defect of a bone is provided. The instrument comprises a guide frame having a plurality of device portals, each portal defining a trajectory. The guide frame further includes visual markers for aligning the guide frame to an anatomical landmark on the bone to be treated. The instrument also includes a holder for releasable attachment with the guide frame. Each device portal is configured to provide accurate and controlled delivery of the device to the target area. In one example, the markers are radiopaque, and are visualized through fluoroscopy. A method of using the instrument is also provided.