Movable Cannulation Target for Endovascular Aneurysm Training
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Solution Overview
Problem
Existing training methods for endovascular aneurysm treatment require complex and expensive artificial models that are not versatile for isolated skill practice, limiting the ability of young surgeons to develop manual skills, particularly in delicate maneuvers like guidewire cannulation.
Innovation Solution
A surgical training device with a movable target and control member allows simulation of various endovascular procedures, enabling quick changes in target position and orientation to practice complex maneuvers without constructing a complete surgical model.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex and expensive artificial models are used for training, then training realism is improved, but device complexity and cost increase
Solution Approach 1:
The patent uses a simplified transparent container as a copy of the human body cavity, containing essential training elements (guidewire, guiding catheter, target vessel) without replicating the full complexity of anatomical structures. This allows trainees to practice critical cannulation skills in a realistic yet cost-effective manner.
Solution Approach 2:
The invention extracts only the essential components needed for training specific skills (cannulation maneuvers) from the complete surgical procedure. By isolating the target vessel and access points within a simplified container, the model focuses training on delicate manual skills without requiring the full anatomical complexity of a complete surgical model.
2Reliability
If complete surgical models are constructed, then comprehensive training is improved, but versatility for isolated skill practice decreases
Solution Approach 1:
The training model is segmented into independent components: a transparent container representing the body cavity, a target vessel with specific cannulation sites, and access points. This segmentation allows trainees to focus on isolated skills like guidewire insertion and catheter navigation without being constrained by a fixed comprehensive surgical scenario.
Solution Approach 2:
The model provides dynamic training scenarios by allowing adjustment of the target vessel position and orientation within the transparent container. Trainees can practice various cannulation approaches and angles, enhancing versatility for different surgical situations while maintaining a simple base structure.
3Device complexity
If simple training models are used, then cost and complexity are reduced, but training effectiveness for delicate maneuvers decreases
Solution Approach 1:
The transparent container and target vessel allow direct visual feedback of the guidewire and guiding catheter positions, enhancing training effectiveness. The clarity of the materials enables trainees to observe the exact trajectory and positioning of instruments during cannulation maneuvers, compensating for the simplicity of the model structure.
Solution Approach 2:
The invention replaces complex mechanical anatomical structures with a simplified transparent system that achieves the same training objective. The transparent container with marked access points and target vessels provides sufficient realism for practicing delicate maneuvers without requiring complex mechanical or anatomical fidelity.
Data Source
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AI summary
The present invention relates to a training device (50, 100, 200, 300) for a surgical procedure for endovascular treatment of an aneurysm, comprising: - a container (52) having a wall (54) defining a confined chamber (56) and a first access opening (58) in said wall (54), the first access opening (58) being configured to allow the insertion into the container (52) of a guidewire (17) and/or of a guiding catheter (26) for endovascular surgery, - a first tube (62) connected to said container (52) at said first access opening (58), and - a movable element (70) comprising a target (72, 172) and a control member (74) connected to said target (72, 172). The target (72, 172) is arranged within to the container (52) and comprises a cannulation seat (84, 184) configured to receive said guidewire (17) and/or said guiding catheter (26) for endovascular surgery, and said control member (74) at least partially protrudes out of the container (52) through a control opening (76, 82, 83) of the wall (54) of the container (52). The movable element (70) is movably constrained, at said control opening (76, 82, 83), to the wall (54) of the container (52) so as to enable the target (72, 172) to adopt a plurality of different positions and/or orientations within the container (52). The invention further relates to a training method for a surgical procedure of endovascular treatment of aneurysms in which such training device (50, 100, 200, 300) is used, and to the use of the device (50, 100, 200, 300) in said training method.