Needle Guide Contour Mapping for Reachable Insertion Planning
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Solution Overview
Problem
Current needle guidance systems face challenges in accurately positioning the needle guide device on the patient's skin surface due to patient motion, internal organ displacement, and geometric constraints, leading to potential misplacement of the target point out of the needle's accessible range.
Innovation Solution
A system and method utilizing specialized software algorithms to generate a parametric contour map on the patient's skin surface, integrating patient-specific pre-operative images and needle guide device parameters, allowing for real-time adjustment of insertion point parameters to optimize needle placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a needle guide device is mounted on the patient's skin surface, then needle insertion guidance is provided, but patient motion and internal organ displacement cause misplacement of the target point out of the needle's accessible range
Solution Approach 1:
The system performs pre-operative imaging and generates a parametric contour map before the actual needle insertion procedure. This preliminary visualization identifies optimal insertion points and predicts the needle's reachable zone, allowing the physician to plan the procedure in advance and anticipate potential issues with patient motion or organ displacement.
Solution Approach 2:
The patent transforms 3D volumetric image data into a 2D parametric contour map displayed on the skin surface. This dimensional transformation provides an intuitive visual representation of complex spatial relationships, showing insertion point parameters and reachable zones in a format that can be directly overlaid on the patient's anatomy for real-time guidance.
2Manufacturing precision
If multiple probes are used to ensure full tumor ablation, then complete tumor removal is achieved, but the complexity of probe configuration and positioning increases
Solution Approach 1:
The parametric contour map system serves multiple functions simultaneously: it visualizes optimal insertion points, displays the needle's reachable zone, indicates the target location, and provides real-time feedback on probe positioning. This multi-functional visualization tool simplifies the management of multiple probes by providing a unified view of all critical parameters.
Solution Approach 2:
The system allows dynamic adjustment of insertion point parameters on the parametric contour map, enabling the physician to optimize probe positioning for different configurations. By changing parameters such as insertion depth, angle, and lateral position, the system adapts to accommodate multiple probes while maintaining precise control over each probe's trajectory and reachable zone.
3Measurement precision
If real-time adjustment of insertion point parameters is enabled, then optimal needle placement is achieved, but the time required for procedure planning increases
Solution Approach 1:
The system performs computationally intensive tasks such as generating the parametric contour map, calculating the needle's reachable zone, and identifying optimal insertion points during the pre-operative planning phase. This preliminary processing allows real-time interaction during the actual procedure without requiring complex calculations at that stage.
Solution Approach 2:
The parametric contour map creates a virtual copy of the patient's anatomy and needle characteristics, allowing the physician to experiment with different insertion parameters in the virtual environment before executing the actual procedure. This virtual simulation eliminates the need for repeated trial-and-error adjustments on the patient, saving time while maintaining precision.
Data Source
AI summary
Disclosed herein are planning, navigation and simulation systems and methods for minimally invasive image-guided percutaneous intervention in which the planning method and system use patient-specific pre-operative images and instrument-specific parameters to generate a planned insertion path. A system includes a needle guide device that interfaces with a computing device to guide a needle-like probe towards target location within an anatomy of a subject. The computing device includes a processor configured to receive volumetric image data of the anatomy of the subject, and data about parameters of the needle guide device. One or more algorithms executed by the processor provide direct visualization of a parametric contour map superposed on an image of the patient's skin surface. A user can choose an optimal insertion point for the planned insertion path based the parametric contour map.