Embolic Device Socket Anchors for Stable Delivery-Wire Connections
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Solution Overview
Problem
Existing embolic devices face challenges in securing the connection between the delivery wire, embolic coil, and adapter at the major junction, which can be improved for better performance.
Innovation Solution
A medical device with a socket and anchors configured to securely hold braid wires, and a loop to accommodate the delivery wire, providing a stable interface without the need for a coil, and a stem with a stopper and structure to anchor the delivery wire and stretch-resistant member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional adapter with hook and aperture connections is used to attach delivery wire to embolic coil, then the device can be assembled, but the connection stability and reliability at the major junction is insufficient
Solution Approach 1:
The patent merges the delivery wire attachment and embolic coil attachment functions into a single integrated socket structure. The socket simultaneously receives the delivery wire in its longitudinal axis and the braid wires forming the embolic coil, eliminating the need for separate hook and aperture connection mechanisms. This consolidation improves connection stability while reducing structural complexity at the major junction.
Solution Approach 2:
The socket acts as an intermediary component between the delivery wire and the embolic coil. It provides a stable interface that securely holds both the delivery wire and the braid wires, ensuring reliable force transmission during delivery while maintaining structural integrity. The socket's cavity and interior surface design enable secure engagement of multiple components simultaneously.
2Ease of manufacture
If multiple separate components (adapter, delivery wire, embolic coil) are connected at the major junction, then the components can be attached, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent segments the major junction into distinct functional zones within a single socket structure: a region for receiving the delivery wire along its longitudinal axis, and a cavity for receiving the braid wires. This segmentation allows each component to be independently prepared and then quickly assembled into the socket, simplifying the overall assembly process and reducing time compared to multiple separate connection steps.
Solution Approach 2:
The socket is pre-configured with the appropriate geometry, cavity dimensions, and interior surface features before assembly. This preliminary preparation enables the delivery wire and braid wires to be directly inserted and secured without requiring complex alignment procedures or multiple assembly steps, thereby reducing assembly time and improving ease of manufacture.
3Reliability
If a coil is used at the major junction to connect delivery wire and adapter, then the connection can be made, but the device complexity increases without improving performance
Solution Approach 1:
The patent extracts and eliminates the intermediate coil component from the major junction assembly. Instead of using a coil to connect the delivery wire and adapter, the design directly integrates these connections within the socket structure. The socket's cavity and interior surface provide the necessary connection functionality without requiring an additional coil component, thereby reducing device complexity while maintaining connection reliability.
Data Source
AI summary
A medical device includes: a socket having one or more side wall(s) defining a cavity sized for receiving a plurality of braid wires, wherein the socket also has an end wall coupled to, and/or extending from, the one or more side wall(s); and a first anchor on an interior surface of the one or more side wall(s) of the socket, wherein the first anchor is configured to press against at least one of the braid wires after the socket has received the braid wires.