Surgical Access System with Integrated Navigation for Brain Tissue
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Solution Overview
Problem
Current surgical techniques for accessing brain tissue are invasive, causing trauma to delicate structures and lack effective navigational tools, leading to complications and limited treatment options due to the complexity of brain anatomy and the blood-brain barrier.
Innovation Solution
A surgical access system comprising a hollow outer sheath with a selectively removable obturator and integrated navigation capabilities, including imaging mechanisms and RFID sensors, to minimize tissue trauma and provide real-time navigation and targeted treatment delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional surgical techniques are used to access brain tissue, then access to the target area is achieved, but trauma to delicate brain structures occurs
Solution Approach 1:
The surgical system is divided into multiple components: an introducer for initial access, an outer sheath for maintaining the pathway, and removable inner components for treatment delivery. This segmentation allows minimally invasive access while protecting delicate brain structures from trauma.
Solution Approach 2:
The outer sheath acts as an intermediary device that maintains the surgical pathway without requiring continuous manipulation of the brain tissue. Once positioned, the sheath remains stationary while allowing various treatment instruments to pass through, thereby minimizing trauma to surrounding structures.
2Ease of operation
If invasive surgical techniques are used to access deep brain structures, then the target area becomes accessible, but complications increase
Solution Approach 1:
The system performs preliminary actions by first introducing a navigational element to precisely locate the target deep brain structure before committing to the invasive pathway. Imaging mechanisms capture pre-positioning data, allowing the surgeon to plan the optimal access route and minimize complications.
Solution Approach 2:
The system incorporates real-time feedback through imaging mechanisms and navigational tracking that monitor the position of surgical instruments relative to the target deep brain structure. This feedback loop allows continuous adjustment to maintain precise positioning and avoid complications.
3Measurement precision
If complex navigational tools are integrated into the surgical system, then navigational precision improves, but device complexity increases
Solution Approach 1:
The surgical system integrates multiple functions into unified components: the introducer serves both as an access device and a navigational reference; the outer sheath maintains the pathway while allowing various treatment instruments to pass through; imaging mechanisms provide both visualization and positioning data. This multi-functionality reduces the number of separate components needed.
Solution Approach 2:
The system merges the navigational element with the introducer, combining positioning and access functions into a single integrated component. This reduces device complexity while maintaining high navigational precision throughout the surgical procedure.
4Object-affected harmful factors
If the surgical system remains stationary after positioning, then tissue trauma is minimized, but repositioning becomes difficult
Solution Approach 1:
The system employs a dynamic locking mechanism that allows the outer sheath to be easily positioned and then locked in place to minimize tissue trauma. The locking feature provides a simple interface for secure attachment, enabling quick positioning adjustments without requiring complex manipulation or causing additional tissue damage.
Data Source
AI summary
A surgical access assembly and method of use is disclosed. The surgical access assembly comprises an outer sheath and an obturator. The outer sheath and obturator are configured to be delivered to an area of interest within the brain. Either the outer sheath or the obturator may be configured to operate with a navigational system to track the location of either device within the brain.