Guided Sinus Lift Incising Device with Fiducial Feedback
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Solution Overview
Problem
Current sinus lift procedures for dental implants often involve a 'best guess' approach when incising the maxilla, risking sinus membrane perforation and damage to surrounding bone structure, due to the lack of precise pre-surgical planning and guidance.
Innovation Solution
A method and system that utilize a fiducial device and guidance system for precise virtual incision planning, where a fiducial marker is formed in the patient's mouth, and an incising device is physically regulated to create a window in the maxilla, with tactile feedback ensuring adherence to the planned incision path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a best estimate approach is used when incising the maxilla, then the surgical procedure can be performed quickly and simply, but there is a risk of sinus membrane perforation and damage to surrounding bone structure
Solution Approach 1:
A virtual incising plan is created before the actual surgical procedure using imaging data and fiducial markers. This preliminary digital planning allows the surgeon to visualize the exact incision path, avoid critical structures like the sinus membrane, and prepare guidance systems in advance, thereby maintaining surgical simplicity while significantly improving safety and reliability
Solution Approach 2:
A guidance device acts as an intermediary between the virtual incising plan and the physical incising tool. This intermediary system translates digital planning into precise physical guidance during surgery, providing real-time feedback and constraints to ensure the incision follows the pre-planned safe path while maintaining ease of operation through intuitive guidance
2Manufacturing precision
If a virtual incising plan with fiducial markers and guidance devices is implemented, then the precision and safety of the incision is improved, but the device complexity and procedural time increase
Solution Approach 1:
The actual surgical site is replicated in a virtual environment through imaging and fiducial marker registration. This digital copy allows for precise virtual incising plan creation and simulation before actual surgery, enabling high precision planning without requiring complex physical guidance systems during the procedure itself
Solution Approach 2:
Complex mechanical measurement and calculation systems are replaced with optical imaging, fiducial marker tracking, and software-based virtual planning. This substitution reduces physical device complexity while maintaining or improving incision precision through digital modeling and virtual reality integration
3Reliability
If tactile feedback is provided during incising to ensure adherence to the virtual plan, then the risk of deviation and sinus membrane damage is reduced, but the ease of operation decreases
Solution Approach 1:
Tactile feedback mechanisms provide real-time haptic cues to the surgeon during incising, indicating when the tool is approaching or deviating from the planned path. This feedback loop allows the surgeon to maintain natural hand movements while receiving continuous guidance, reducing deviations without completely restricting operational freedom
Solution Approach 2:
The guidance system provides selective constraints rather than complete restriction. Tactile feedback is applied only when needed to correct potential deviations, allowing full freedom of movement during safe portions of the procedure. This partial application of guidance maintains ease of operation while ensuring reliability when necessary
Data Source
AI summary
A method of conducting a sinus lift procedure is provided. A secure and physical interaction is formed between a fiducial device and a site within a patient's mouth to form a fiducial marker. A virtual incising plan is formed for incising the patient's maxilla, with respect to the fiducial marker, for providing access to a sinus membrane. Movement of an incising device is physically regulated with respect to the fiducial marker with a guidance device. The incising device is in physical communication with the fiducial marker via the fiducial device. The guidance device physically regulates movement of the incising device, according to the virtual incising plan and corresponding with physical manipulation of the incising device by a user, to incise the maxilla. Tactile feedback is provided to the user, via the incising device, if the physical manipulation of the incising device by the user deviates from the virtual incising plan.