Magnetic Aneurysm Filling Element for Tortuous Vessel Navigation
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Solution Overview
Problem
Existing vascular treatment devices face challenges in navigation through tortuous arteries, are not easily guidable, and often result in increased treatment time and risk of tissue damage due to complex architectures and difficult aneurysm occlusion.
Innovation Solution
A device comprising a filling element, magnetic element, and release mechanism, guided by a controlling line, allows for controllable navigation and activation at the treatment site, enabling safe and reliable treatment of aneurysms with minimal tissue damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex architectures are used to achieve sufficient aneurysm occlusion, then treatment efficacy is improved, but device complexity and difficulty of operation increase
Solution Approach 1:
The device is divided into distinct functional components: a magnetic element for navigation, a filling element for occlusion, and a release mechanism for deployment. This segmentation allows each component to be optimized independently while simplifying the overall system architecture and improving guidability through tortuous arteries.
Solution Approach 2:
A magnetic element acts as an intermediary between the external magnetic actuator and the filling element. This intermediary enables remote control and precise navigation of the filling element to the aneurysm site through tortuous arteries, improving both guidability and treatment efficacy without increasing overall device complexity.
2Reliability
If complex architectures are used to achieve sufficient aneurysm occlusion, then treatment efficacy is improved, but treatment time increases
Solution Approach 1:
The device is pre-loaded and prepared for deployment before reaching the treatment site. The filling element is positioned and ready for release, allowing for rapid deployment upon arrival at the aneurysm, thereby reducing overall treatment time while maintaining occlusion efficacy.
Solution Approach 2:
The complex mechanical navigation and deployment mechanisms are replaced with a magnetic guidance system. The magnetic element responds to external magnetic fields for navigation, and the release mechanism uses magnetic actuation for deployment, simplifying the mechanical architecture and reducing treatment time.
3Ease of operation
If navigation through tortuous arteries is attempted, then access to aneurysm is achieved, but risk of tissue damage increases
Solution Approach 1:
The mechanical pushing and steering mechanisms that cause friction and damage to artery walls are replaced with a magnetic guidance system. The magnetic element responds to external magnetic fields for navigation through tortuous arteries, eliminating mechanical contact and friction, thereby improving guidability while minimizing tissue damage risk.
4Ease of operation
If simple device architecture is used, then ease of operation and reliability are improved, but ability to achieve sufficient aneurysm occlusion is reduced
Solution Approach 1:
The magnetic element serves as an intermediary that enables remote control and precise positioning of the filling element. This intermediary approach allows for simple, safe navigation and deployment while maintaining the ability to achieve sufficient aneurysm occlusion through precise positioning and controlled release of the filling element.
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 device facilitates precise delivery and activation of thrombogenic elements to treat aneurysms, reducing the risk of tissue damage and improving treatment efficacy by allowing for controlled occlusion and navigation through complex vascular structures.
Implementation Method 1
The magnetic element is adapted to be guided by an external actuator. Guiding of the magnetic element enables guiding of at least the filling element along a vessel path.
Implementation Method 2
The filling element is adapted to reduce the volume of a vessel position in which it is placed for treatment, either by taking up volume or by forming a thrombus.
Data Source
Figure 1a~1i
Figure 2a~4e
Figure 5a~6c
AI summary
The invention relates to a device (1) for treatment of a vessel (V) in a patient comprising a filling element (5,7,10,13,14,15,29), a magnetic element (4), a controlling line (2), a release mechanism (3). The release mechanism (3) is adapted to release the magnetic element (4) and/or the filling element (5,7,10,13,14,15,29) such as to be separated from the controlling line (2). The magnetic element (4) is adapted to be guided by an external actuator (M) such as to guide at least the filling element (5,7,10,13,14,15,29) along a vessel path (V). The filling element (5,7,10,13,14,15,29) is adapted to, when placed in the vessel (V) to be treated, reduce the volume of said vessel portion (V). The controlling line (2) is adapted to position the device by being loosened or pulled.