Irrigation Fluid Source Height Control for Ocular Surgery
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Solution Overview
Problem
During ocular surgical procedures, existing phacoemulsification systems automatically adjust the height of irrigation fluid sources, leading to uncertainty and the need for constant monitoring by surgeons, diverting attention from the procedure and potentially causing adverse effects due to default settings changes or unexpected surgical conditions.
Innovation Solution
A system that allows surgeons to override automatic settings, enabling manual adjustment of the irrigation fluid source height and flow rate, allowing for customized management during surgical procedures, with the option to revert to automatic adjustment when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automatic height adjustment is used, then fluid flow control is improved, but surgeon attention is diverted from the procedure
Solution Approach 1:
The system dynamically switches between automatic and manual adjustment modes based on surgical conditions. The controller monitors surgical parameters and automatically transitions the height adjustment mechanism between automated operation (using predefined profiles) and manual override (allowing surgeon input), providing flexible adaptation to varying procedural needs without requiring constant surgeon intervention.
Solution Approach 2:
The system incorporates feedback mechanisms where the controller continuously monitors surgical parameters and compares them against predefined safety thresholds and profiles. When parameters deviate from acceptable ranges or when manual override is activated, the system provides feedback to the surgeon through user interface elements, enabling informed decision-making about when to switch between automatic and manual modes.
2Productivity
If automatic height adjustment is used, then fluid management efficiency is improved, but adaptability to varying surgical conditions deteriorates
Solution Approach 1:
The system dynamically adapts its behavior based on real-time surgical conditions. The controller monitors parameters such as intraocular pressure, fluid flow rate, and surgical mode, and automatically adjusts the height of the irrigation fluid source accordingly. When predefined safety thresholds are approached or surgical conditions change, the system can transition to manual override mode, allowing the surgeon to customize settings for specific patient needs or complications.
Solution Approach 2:
The system utilizes multiple predefined height profiles corresponding to different surgical modes and patient conditions. Each profile contains optimized parameter sets (height, flow rate, pressure) tailored to specific procedures. The controller automatically selects and switches between these profiles based on the current surgical state, enabling rapid adaptation to varying conditions while maintaining efficiency through automated parameter adjustment.
3Adaptability or versatility
If manual adjustment mode is activated, then adaptability to surgical conditions is improved, but fluid management automation is reduced
Solution Approach 1:
The system implements a dynamic control architecture that allows seamless switching between automated and manual control modes. When manual override is activated, the system transitions from fully automated height adjustment to manual control, giving the surgeon direct input capability. The controller continues to monitor surgical parameters and can provide guidance or warnings, but the primary control function is transferred to the user, enabling高度 adaptability to unique surgical scenarios.
4Reliability
If constant monitoring of bottle height is required, then safety is improved, but surgical procedure focus is reduced
Solution Approach 1:
The system performs self-monitoring and self-adjustment of bottle height based on predefined safety thresholds and surgical profiles. The controller automatically tracks surgical parameters, compares them against safety criteria, and adjusts fluid source height without requiring continuous surgeon intervention. This self-service capability maintains safety through constant monitoring while freeing the surgeon to focus on the primary surgical procedure.
Solution Approach 2:
The system incorporates continuous feedback loops where the controller monitors surgical parameters in real-time and provides automatic adjustments or warnings when safety thresholds are approached. The feedback mechanism operates transparently in the background, alerting the surgeon only when intervention may be needed, thus maintaining safety through constant surveillance without requiring active surgeon attention throughout the procedure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces the surgeon's attention diversion, enabling more focused surgical procedures by allowing precise control over fluid management, minimizing risks associated with automatic height adjustments and accommodating varying surgical conditions.
Implementation Method 1
the machine raising the bottle height results in more fluid pressure, and lowering bottle height results in less fluid pressure
Data Source
AI summary
An apparatus and method for controlling fluid flow provided by an apparatus to a patient's eye during a surgical procedure. The method includes automatically adjusting an irrigation fluid source to a predetermined height during the surgical procedure using the apparatus, receiving a request either that the irrigation fluid source be moved to a different height from the predetermined height or that a manual adjustment mode be entered, and ceasing automatic adjusting and requiring manual adjustment of the height of the irrigation fluid source until the surgical procedure is completed or an indication received to resume automatic height adjustment of the irrigation fluid source. As an alternative, fluid flow rate or intraocular pressure may be maintained, and the design may include making adjustments to default values in other modes based on the adjustment made.