Aneurysm Neck Bridge With Closeable Opening For Embolic Insertion
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Solution Overview
Problem
Current treatments for cerebral aneurysms often fail to effectively occlude irregularly-shaped and varying-size aneurysms, and existing devices may not provide stable occlusion, leading to potential rupture and hemorrhage.
Innovation Solution
An intrasaccular aneurysm occlusion device with a neck bridge featuring a closeable opening allows for the insertion of embolic material through the neck bridge into the aneurysm sac, followed by closure to prevent material escape, using a design that can adapt to irregular shapes and sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional aneurysm occlusion device is used, then the procedure is simple, but the device cannot effectively occlude irregularly-shaped and varying-size aneurysms
Solution Approach 1:
The device is divided into multiple functional segments: a neck bridge component that spans the aneurysm neck, a closeable opening mechanism for embolic material insertion, and an intrasaccular portion that extends into the aneurysm sac. This segmentation allows each component to be optimized for its specific function while collectively providing adaptability to irregular aneurysm geometries
Solution Approach 2:
The device incorporates a closeable opening that can be dynamically opened during embolic material insertion and then closed to prevent material escape. This dynamic feature allows the device to adapt its configuration based on the procedural stage, providing versatility for different aneurysm shapes and sizes while maintaining structural integrity
2Reliability
If embolic material is inserted through the neck bridge, then effective occlusion is achieved, but the material may escape from the aneurysm sac
Solution Approach 1:
The closeable opening is pre-configured in the neck bridge structure, allowing embolic material to be inserted through a controlled pathway. The opening can be closed after insertion to seal the material within the aneurysm sac, preventing escape and ensuring reliable occlusion
Solution Approach 2:
The neck bridge acts as an intermediary structure that facilitates controlled access to the aneurysm sac for embolic material insertion while simultaneously serving as a barrier to prevent material escape. The closeable opening mechanism mediates between the need for material insertion and the need to retain material within the sac
3Adaptability or versatility
If a fixed-shape device is used, then manufacturing is simple, but the device cannot adapt to different aneurysm geometries
Solution Approach 1:
The device is designed with universal features that allow it to accommodate various aneurysm geometries. The neck bridge structure with its closeable opening can be configured for different insertion approaches, and the intrasaccular portion can adapt to different sac shapes, making the device versatile across multiple aneurysm types while using standardized manufacturing processes
Data Source
AI summary
This intrasacular aneurysm occlusion device includes a neck bridge with a closeable opening through which embolic material is inserted into an aneurysm sac. After the neck bridge has been expanded within the aneurysm sac, a catheter is inserted through the opening and embolic material is delivered through the catheter into the aneurysm sac. After the aneurysm sac has been filled with embolic material, the catheter is then withdrawn and the opening is closed so that embolic material does not escape out of the aneurysm sac.