Rotational Catheter UI With Radial Progress Feedback
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Solution Overview
Problem
Current neurovascular procedures face challenges such as limited availability of trained interventionalists, complex setup requirements, difficulty in achieving supra-aortic access, and delicate maneuvers due to long, tortuous anatomy, leading to potential catheter motion and inefficiencies in neurovascular care.
Innovation Solution
A robotic control system with hubs for guidewire, guide catheter, and access catheter adjustment, allowing for precise axial and rotational control, along with lateral deflection, to facilitate supra-aortic access and enable distal advancement of procedure catheters for neurovascular treatments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual manipulation of multiple coaxial catheters is used, then the surgeon can directly control the catheters, but the complexity of setup requirements and the number of controls required increases significantly
Solution Approach 1:
The control system is segmented into separate control modules, with each coaxial catheter having its own hub and independent control mechanisms. This allows the surgeon to control each catheter individually without managing a complex unified system, reducing the cognitive load while maintaining precise control over multiple devices simultaneously
Solution Approach 2:
Hubs serve as intermediary components between the surgeon's manual manipulation and the coaxial catheters. Each hub provides a centralized interface for controlling multiple catheters, acting as a mediator that simplifies the control architecture and reduces the number of direct control elements the surgeon must manage
2Measurement precision
If robotic control system is implemented, then the precision and control over catheters is improved, but the initial setup complexity and system complexity increases
Solution Approach 1:
The robotic control system is designed to be self-configuring, where the hubs automatically detect and track the coaxial catheters without requiring complex pre-programming or manual calibration. The system self-adjusts to accommodate different catheter configurations, reducing setup complexity while maintaining precise robotic control
Solution Approach 2:
The robotic control system uses universal hubs that can control multiple types of catheters through a single interface. This multi-functional design eliminates the need for separate control mechanisms for each catheter type, reducing overall system complexity while maintaining the precision needed for various neurovascular procedures
3Productivity
If multiple coaxial catheters are manipulated simultaneously, then neurovascular procedures can be performed, but frictional interplay between catheters causes inadvertent motion
Solution Approach 1:
The mechanical friction-based control system is replaced with a magnetic coupling system. Magnets in the hubs create magnetic fields that couple to the catheters without physical contact, eliminating frictional interplay between coaxial catheters while maintaining synchronized control. This allows multiple catheters to be manipulated simultaneously without inadvertent motion caused by mechanical friction
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
Enhances the availability and efficiency of neurovascular procedures by providing precise robotic control over catheters, reducing setup time, and enabling access to intracranial vessels, thus improving the delivery of treatments like thrombectomy and stent placement.
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
A robotic interventional device control system includes an interventional device comprising a longitudinal axis and configured to rotate about the longitudinal axis; a controller configured to control rotational movement of the interventional device about the longitudinal axis; at least one sensor configured to detect rotational movement of the interventional device about the longitudinal axis; and one or more hardware processors configured to receive motion data from the at least one sensor, the motion data indicative of whether the interventional device is rotating. The one or more hardware processors are further configured to generate a user interface comprising an instrument window having a representation of the interventional device and an interventional device marker associated with the representation of the interventional device. The interventional device marker includes a radial progress indicator configured to provide a visual indication of a degree of rotation relative of the interventional device about the longitudinal axis.