Sterile Hub Packaging Assembly for Robotic Catheter Manipulation
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Solution Overview
Problem
The delivery of neurovascular care is limited by challenges such as insufficient trained interventionalists, complex setup requirements, and difficulty in achieving supra-aortic access, especially in Type III arches, which complicates procedures like thrombectomy and stent placement.
Innovation Solution
A robotic control system with hubs for guidewire, access catheter, and guide catheter, allowing for precise axial and rotational control, along with lateral deflection, to achieve supra-aortic access and enable robotic manipulation of interventional devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control of coaxial catheters is used, then the surgeon can perform neurovascular procedures, but the complexity of setup requirements and demand on surgeon dexterity increases
Solution Approach 1:
The patent replaces manual mechanical control of catheters with a robotic system that uses magnetic fields to actuate the catheters. The robotic system includes a magnetic actuator that can remotely control the position and orientation of the catheter tip without requiring direct manual manipulation, thereby reducing the demand on surgeon dexterity and simplifying the setup process.
Solution Approach 2:
The patent introduces a robotic intermediary system between the surgeon and the catheters. This robotic system acts as a mediator that translates surgeon commands into precise catheter movements, handling the complexity of coordinating multiple coaxial catheters and eliminating the need for the surgeon to directly manage complex mechanical manipulations.
2Ease of operation
If supra-aortic access is achieved manually, then neurovascular procedures can be performed, but achieving access especially in Type III arches is challenging
Solution Approach 1:
The robotic system replaces manual catheter advancement with magnetic actuation that can precisely control catheter navigation through complex vascular anatomy. The magnetic actuator can apply controlled forces to advance the catheter through Type III arches and other challenging anatomies without relying on manual pushing or wire manipulation.
Solution Approach 2:
The patent changes the actuation parameter from manual mechanical force to magnetic field actuation. This allows for more precise control of catheter position and orientation during advancement through the aortic arch, enabling reliable access even in challenging Type III arches where manual techniques fail.
3Measurement precision
If robotic control system is implemented, then precise control of interventional devices is achieved, but device complexity increases
Solution Approach 1:
The patent extracts the control complexity from the catheter system itself and places it in a separate robotic control unit. The catheter remains relatively simple with just the magnetic actuation components, while the complex control algorithms, magnetic field generation, and coordination logic are housed in an external robotic system that can be updated or modified without changing the catheter design.
Solution Approach 2:
The robotic control system is designed as a universal platform that can control multiple different types of interventional devices and catheters through the same magnetic actuation interface. This multi-functionality reduces overall system complexity by using a single standardized robotic controller rather than requiring separate control systems for each device type.
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
Facilitates efficient and precise robotic access to neurovascular sites, reducing the need for manual dexterity and enabling procedures like thrombectomy and stent placement with improved accuracy and ease.
Implementation Method 1
a magnet on the proximal end of the interventional device; the sterile barrier is magnetically permeable
Data Source
Figure 1
Figure 2~3A
Figure 3B~3C
AI summary
A sterile packaging assembly for transporting interventional devices to a robotic surgery site includes a sterile barrier having a hub support portion and configured to enclose a sterile volume; and at least a first interventional device within the sterile volume. The first interventional device includes a hub and an elongate flexible body. The hub includes at least one magnet and at least one roller configured to roll on the hub support portion of the sterile barrier.