Frameless Valve Deployment via Anchoring Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for deploying artificial valves within the vascular system are limited by the need for frame-based structures that can cause complications such as thrombosis and embolism, and lack efficient deployment techniques for frameless valves.
Innovation Solution
A deployment apparatus featuring a delivery device with a lumen and an elongate deployment member that includes releasably engaged anchoring elements, such as barbs, to securely attach a frameless valve formed from remodelable materials like extracellular matrix to the vascular vessel walls, allowing for efficient and secure implantation without a support frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If frame-based structures are used for artificial valves, then structural support and stability are improved, but complications such as thrombosis and embolism increase
Solution Approach 1:
The patent removes the frame structure from the artificial valve design, extracting only the essential function of structural support while eliminating the harmful frame components that cause thrombosis and embolism. The frameless valve uses remodelable extracellular matrix material that provides necessary support without the complications associated with rigid frames.
Solution Approach 2:
The patent changes the material parameters from rigid frame materials to remodelable extracellular matrix materials. This parameter change allows the valve to maintain structural integrity while being more biocompatible and less prone to causing thrombosis and embolism. The remodelable nature of the material allows it to adapt to the vascular environment over time.
2Object-affected harmful factors
If frameless valves are used, then complications such as thrombosis and embolism are reduced, but deployment efficiency and securing capability deteriorate
Solution Approach 1:
The patent introduces a deployment apparatus as an intermediary tool that facilitates the deployment of frameless valves. The apparatus includes a delivery device with a lumen and an elongate deployment member with releasably engaged anchoring elements, which act as mediators to securely attach the frameless valve to the vascular vessel walls during the deployment process, thereby maintaining deployment efficiency without frames.
3Reliability
If frameless valves with remodelable materials are used, then biocompatibility and safety are improved, but deployment complexity increases
Solution Approach 1:
The deployment apparatus serves as an intermediary system that simplifies the deployment of complex frameless valves with remodelable materials. The apparatus includes a delivery device with a lumen for receiving the valve and anchoring elements, and an elongate deployment member with releasably engaged anchoring elements, which work together to manage the complexity of deploying biocompatible frameless structures.
4Strength
If anchoring elements are releasably engaged with deployment members, then secure attachment to vessel walls is improved, but device complexity increases
Solution Approach 1:
The patent segments the deployment system into distinct functional components: a delivery device with a lumen, an elongate deployment member, and separate anchoring elements. This segmentation allows each component to perform its specific function efficiently while maintaining overall system manageability. The anchoring elements can be releasably engaged with the deployment member, providing secure attachment capability without requiring a fully integrated complex structure.
Data Source
AI summary
Described, in certain aspects of the invention, are apparatuses and methods for deploying artificial devices within the vascular system. One apparatus includes a delivery device having a lumen and a deployment member slidably received within the lumen. This apparatus further includes an artificial device having an anchoring element releasably engaged with the deployment member. Such an apparatus can be percutaneously delivered to a site within a vascular vessel, and thereafter manipulated so that the anchoring element attaches to the vessel wall. The delivery device and deployment member can then be withdrawn from the vessel, whereby the deployment member disengages from the anchoring element, leaving the artificial device implanted in the vessel.