Automated Anatomical Boundary Mapping for Safe Instrument Trajectories
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Solution Overview
Problem
Existing minimally invasive medical procedures face challenges in accurately navigating medical instruments to avoid vulnerable anatomical structures, risking patient injury due to inadequate boundary identification and trajectory planning.
Innovation Solution
A medical system and method that includes a display system, user input device, and control system to determine anatomical boundaries and trajectory zones, using image data to plan a safe path for medical instruments, avoiding vulnerable areas by generating an anatomical boundary and zone boundary based on the intersection with anatomical structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual navigation of medical instruments is used during minimally invasive procedures, then the procedure can be performed with existing simple equipment, but the risk of instrument penetration of vulnerable anatomical structures increases due to inadequate boundary identification
Solution Approach 1:
The system performs preliminary planning before the actual procedure by determining anatomical boundaries and trajectory zones in advance. The control system processes image data to identify vulnerable structures and calculate safe trajectories, allowing the clinician to review and select optimal paths before instrument insertion, thereby preventing harmful penetration while maintaining operational simplicity
Solution Approach 2:
The control system acts as an intermediary between the clinician and the anatomical structures. It processes image data to generate visual representations of anatomical boundaries and trajectory zones, providing guidance information that mediates the navigation process and reduces the risk of instrument penetration without requiring direct complex interaction from the clinician
2Reliability
If detailed anatomical boundary identification is implemented to prevent instrument penetration, then patient safety is improved, but the time required for procedure planning increases
Solution Approach 1:
The system replaces manual mechanical analysis of anatomical structures with automated computational processing. The control system automatically processes image data to determine anatomical boundaries and trajectory zones, substituting time-consuming manual planning with rapid computational analysis that maintains high safety standards while reducing planning time
Solution Approach 2:
The system changes the parameters of information presentation by generating visual representations of anatomical boundaries and trajectory zones with varying levels of detail. This allows the planning process to be efficient while still providing comprehensive safety information, as the visual interface can display only the most critical boundary parameters needed for safe navigation
3Object-affected harmful factors
If automated trajectory planning with boundary determination is used, then the risk of patient injury is reduced through precise boundary definition, but the device complexity and computational requirements increase
Solution Approach 1:
The system segments the anatomical region into distinct zones: vulnerable anatomical structures, anatomical boundaries, trajectory zones, and safe navigation paths. This segmentation allows the control system to process and manage complex spatial relationships in a structured manner, reducing computational complexity while maintaining high safety standards through systematic boundary definition
Data Source
AI summary
A medical system comprises a display system, a user input device, and a control system communicatively coupled to the display system and the user input device. The control system is configured to display image data of an anatomical region via the display system, determine a target location in the anatomical region, and determine an anatomical boundary based on the target location. The anatomical boundary indicates a surface of an anatomical structure in the anatomical region. The control system is further configured to determine a trajectory zone around a path between an exit point and the target location. The control system is further configured to determine a zone boundary based on an intersection of the trajectory zone with the anatomical boundary.