Catheter-Integrated Embolic Filter to Reduce Procedural Complexity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current embolic protection devices for preventing cerebral embolism during catheter-based interventional procedures are cumbersome, require multiple components and steps, and often necessitate multiple access sites, which can increase the risk of injury and complicate procedures.
Innovation Solution
Integration of an embolic protection device directly onto a catheter or access sheath, allowing for a single procedural step and minimizing the need for additional access sites, while maintaining the ability to deploy and retract the device without significantly increasing the catheter's diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current embolic protection devices are used, then embolic protection function is provided, but device complexity and number of procedural steps increase
Solution Approach 1:
The embolic protection device is integrated directly onto the catheter body, merging two separate devices (catheter and embolic protection device) into one unified device. This eliminates the need for separate deployment steps and reduces overall procedural complexity while maintaining embolic protection functionality.
Solution Approach 2:
The catheter is designed to serve multiple functions: it acts as both the delivery device for interventional procedures and as the embolic protection device. The catheter body itself incorporates the filter structure, allowing it to perform both diagnostic/therapeutic functions and embolic protection simultaneously.
2Reliability
If current embolic protection devices are used, then embolic protection is achieved, but multiple access sites are required
Solution Approach 1:
The embolic protection functionality is combined with the catheter that is already required for the interventional procedure. This eliminates the need for separate access sites for embolic protection, as the same vascular access used for the catheter also provides access for the integrated embolic protection device.
3Ease of operation
If embolic protection device is integrated on catheter, then procedural steps are simplified, but catheter diameter may increase
Solution Approach 1:
The filter structure is designed to nest within or along the catheter body when in a compressed state during delivery. The filter can be collapsed or folded to fit within the catheter's profile, minimizing the increase in catheter diameter while still providing adequate filter surface area when deployed.
Solution Approach 2:
The integrated embolic protection device transitions from a low-profile compressed state during catheter delivery to an expanded functional state at the target site. This dynamic transformation allows the device to minimize catheter diameter during insertion while providing full embolic protection functionality when deployed.
Data Source
AI summary
Embolic protection elements are integrated with a catheter or access sheath for any catheter. A catheter with an integrated embolic protection element comprises a catheter shaft, an embolic filter slidably mounted on a distal portion of the shaft, a proximal stop for limiting the proximal movement of the embolic filter, and a distal stop for limiting the distal movement of the embolic filter. The filter comprises a porous mesh material defining a collection chamber for captured emboli and has a collapsed and a deployed configuration. The filter may be collapsed by an access sheath used with the catheter. An access sheath may comprise a tubular main body and an embolic filter mounted on the distal portion of the tubular main body. The embolic filter may evert into the central lumen of the sheath or may be constrained on the exterior of the sheath with a larger diameter outer tube.