Minimally Invasive Navigation System with Real-Time MRI Updates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current navigation systems for minimally invasive neurosurgical procedures lack integration of preoperative and intraoperative data, leading to inaccuracies and challenges in port-based surgery due to uncontrolled port axis orientation and limited access, with existing systems failing to provide accurate real-time anatomical feedback to surgeons.
Innovation Solution
A navigation method and system that utilizes preoperative anatomical information to create a multi-segment path trajectory, allowing surgeons to align surgical tools coaxially with the path and providing real-time positional feedback through video overlays, enabling accurate tracking of multiple tools and adaptive updates of MRI images during surgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If port-based surgery is used to access deep brain regions, then minimally invasive access is achieved, but port axis orientation becomes uncontrolled and navigation accuracy deteriorates
Solution Approach 1:
A tracking device is introduced as an intermediary between the port and the navigation system. The tracking device attaches to the port and provides controlled orientation data to the navigation system, allowing the uncontrolled port axis to be monitored and guided accurately through software-based trajectory calculation and real-time feedback.
2Adaptability or versatility
If multiple surgical tools are used during the procedure, then surgical flexibility is improved, but tracking and registration accuracy becomes difficult to maintain
Solution Approach 1:
The tracking device is designed with universal functionality to track multiple different surgical tools. It can attach to various tools including ports, biopsy needles, and catheters, providing consistent tracking capability across different instruments. The system uses a single tracking device that can be transferred between tools rather than requiring separate tracking systems for each tool.
Solution Approach 2:
The system creates a virtual model of the patient's anatomy from preoperative imaging data and uses this digital copy to plan and guide the surgical trajectory. The tracking device provides real-time positional data that is mapped onto this virtual model, allowing accurate navigation without physically marking or altering the patient's anatomy multiple times during the procedure.
3Force
If preoperative imaging data is used for navigation, then surgical planning is improved, but real-time anatomical feedback is lost
Solution Approach 1:
The navigation system provides real-time feedback by continuously tracking the position of the port and surgical tools, and displaying this information overlaid on the preoperative imaging data. The system calculates the actual trajectory based on tracked positions and compares it with the planned trajectory, providing feedback to the surgeon to make real-time adjustments. This closes the loop between preoperative planning and intraoperative execution.
Data Source
AI summary
Navigation and simulation systems and methods for minimally invasive therapy in which the navigation system imports a planning method using patient specific preoperative images. The navigation system uses intraoperative imaging during the medical procedure to update the preoperative images and provides images of tracked surgical tools along the surgical path prepared from the preoperative images.