Soft Tissue Cutting Instrument With Tracked Hip Release Guidance
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Solution Overview
Problem
The challenge in direct anterior total hip replacement is achieving adequate femoral exposure and proper identification of soft tissue release locations, which is compounded by limited visibility of internal anatomy, making it difficult to determine the location of specific bony landmarks and requiring a defined release sequence.
Innovation Solution
A surgical system utilizing a surgical device with tracking elements and a surgical controller that creates a virtual representation of the patient's anatomy based on pre-operative scans, identifies soft tissue attachment points, and provides real-time visualization and guidance for soft tissue releases, ensuring accurate execution of the procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direct anterior total hip replacement is performed without advanced guidance systems, then the surgical procedure can be completed with standard visualization methods, but it becomes extremely challenging to achieve adequate femoral exposure and properly identify soft tissue release locations due to limited visibility
Solution Approach 1:
The patent creates a virtual copy of the patient's anatomy through pre-operative scanning and 3D reconstruction. This virtual model allows surgeons to identify and mark soft tissue release locations and bony landmarks before surgery, transferring the planned release locations to the actual anatomy during surgery. This copying approach resolves the contradiction by providing precise identification accuracy through the virtual model while maintaining ease of operation through pre-planning and intraoperative guidance.
Solution Approach 2:
The patent performs soft tissue release location identification and surgical planning in advance through pre-operative scanning and virtual model creation. The surgeon identifies release locations, creates release pathways, and plans the surgical approach before the actual surgery. This preliminary action resolves the contradiction by transferring the complexity of identification to the pre-operative phase, making the actual surgery easier while maintaining high precision through the pre-planned virtual model.
2Measurement precision
If real-time visualization and tracking systems are implemented, then surgical accuracy and identification precision are significantly improved, but the device complexity and system requirements increase
Solution Approach 1:
The patent integrates multiple functions into a unified surgical guidance system: pre-operative scanning, 3D virtual model creation, intraoperative tracking, real-time visualization, and surgical planning all work together as a coordinated system. The surgical controller manages multiple tasks including detecting surgical device location, tracking anatomy, and providing real-time feedback. This multi-functionality resolves the contradiction by consolidating complexity into an integrated system that provides high precision through coordinated operations rather than separate complex systems.
3Manufacturing precision
If pre-operative scanning and virtual model creation are performed, then the identification of soft tissue release locations becomes more accurate, but the time required for surgical preparation and setup increases
Solution Approach 1:
The patent performs scanning, 3D reconstruction, and soft tissue release location identification during the pre-operative phase, creating a virtual surgical model in advance. This preliminary action allows complex identification and planning work to be completed before surgery, transferring the time investment to the pre-operative period while achieving high precision in location identification. The virtual model created in advance guides the actual surgery, ensuring precision without time pressure during the procedure.
Solution Approach 2:
The system allows the surgeon to independently perform scanning, view 3D reconstructions, identify release locations, and create surgical plans using the virtual model without requiring extensive intraoperative assistance for identification tasks. The virtual model serves itself by providing self-evident visualization of anatomy and release locations, reducing the need for time-consuming intraoperative exploration and consultation.
Data Source
AI summary
A method includes tracking movement of a cautery tool and displaying a visualization of a pathway to be followed by the cautery tool. The pathway corresponds to a plan for tissue resection with the cautery tool. The method also includes updating the visualization based on the tracked movement of the cautery tool.