Telescoping Anti-Buckling Tube for Robotic Catheter Control
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Solution Overview
Problem
Current neurovascular procedures face challenges such as limited trained interventionalists and centers, complex setup requirements, and difficulties in achieving precise control over coaxial catheters, especially for supra-aortic access and navigating long, tortuous anatomy, leading to delayed or limited neurovascular care.
Innovation Solution
A supra-aortic access robotic control system with guidewire, guide catheter, and access catheter hubs that adjust axial and rotational positions, and laterally deflect, along with a control system using driven magnets and a processor for precise movement control, enabling robotic placement and advancement of procedure catheters for neurovascular treatments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple coaxial catheters are used for neurovascular procedures, then the ability to perform complex neurovascular treatments is improved, but the difficulty of precise control and the complexity of setup requirements increase
Solution Approach 1:
The system divides the control of multiple catheters into separate dedicated hubs, with each hub independently controlling one catheter. This segmentation allows complex multi-catheter procedures to be managed through simplified individual control interfaces, reducing overall system complexity while maintaining versatility.
Solution Approach 2:
The robotic control system provides universal control capabilities across multiple catheter types through standardized hub interfaces. Each hub can control different catheter types (guidewire, access catheter, procedure catheter) using the same control mechanisms, enabling the system to perform diverse neurovascular treatments without requiring procedure-specific control setups.
2Measurement precision
If manual control of catheters is used, then flexibility in procedure adaptation is maintained, but precision and control accuracy decrease due to human limitations
Solution Approach 1:
The system replaces manual mechanical manipulation of catheters with robotic actuation through dedicated hubs. The robotic system uses magnetic fields and mechanical actuators to precisely control catheter position, orientation, and movement, achieving superior precision while maintaining ease of operation through intuitive control interfaces.
Solution Approach 2:
The control hubs create virtual copies of the catheter control interface, allowing operators to control physical catheters through simplified digital representations. This copying approach maintains the flexibility of manual control while enhancing precision through robotic execution of control commands.
3Adaptability or versatility
If guidewire and access catheter removal and addition of procedure catheter is required for adapting the system, then the ability to perform different procedures is achieved, but the time required for procedure adaptation increases
Solution Approach 1:
The system performs preliminary setup by maintaining all necessary catheters in a ready state within the robotic control system. The dedicated hubs pre-position and pre-configure multiple catheter types, allowing rapid switching between procedures without time-consuming removal and reinsertion of components during the actual procedure.
Solution Approach 2:
The system employs a nested configuration where multiple catheters are stored concentrically within the robotic hub assembly. This nesting allows different catheter types to be kept ready simultaneously, enabling rapid procedure adaptation by simply activating the appropriate hub without physical reconfiguration or component exchange.
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
The system enhances the availability and efficiency of neurovascular procedures by providing precise robotic control for supra-aortic access and distal neurovascular site access, reducing the complexity and time required for setup and treatment, and allowing for various catheter types to perform procedures like thrombectomy and stent deployment.
Implementation Method 1
The control system may further comprise a driven magnet on each of a guidewire hub, an access catheter hub and a guide catheter hub, configured to cooperate with corresponding drive magnets such that the driven magnet moves in response to movement of the corresponding drive magnet.
Data Source
AI summary
An anti-buckling device for an interventional device assembly includes a telescoping tube having a plurality of concentric telescopically axially extendable and collapsible tube segments each having a proximal end and a distal end, the plurality of tube segments having an innermost tube segment and one or more outer tube segments, the innermost tube segment being configured to couple to a hub of an interventional device assembly, the telescoping tube being configured to extend distally from the hub. Each of the one or more outer tube segments is coupled to a cap at its proximal end, the cap having a through hole configured to receive an interventional device of the interventional device assembly therethrough and an outer diameter greater than an outer diameter of the outer tube segment to which the cap is coupled.