Transcatheter Monocusp Venous Valve for Accurate Placement

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Solution Overview

Problem

Current treatments for chronic venous insufficiency (CVI) are limited and invasive, and transcatheter valves face challenges in accurate placement due to factors like valve shape, size, and tortuous anatomy, leading to less safe delivery processes.

Innovation Solution

A transcatheter valve system with a monocusp leaflet formed from continuous biological tissue, such as porcine pericardium, is designed to replicate the function of native valves using a vortex operation, and is delivered via a self-expanding frame with anchors to ensure accurate placement and minimize invasiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional compression garments and pumps are used to treat CVI, then treatment coverage is provided, but patient mobility is reduced and quality of life deteriorates

Engineering Contradiction:

Improvetreatment efficacyVSAvoidpatient mobility

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The implanted valve device provides automatic blood flow regulation without requiring patient intervention or external equipment. The valve's leaflets automatically open during systole to allow forward flow and close during diastole to prevent reflux, eliminating the need for compression garments and enabling unrestricted patient mobility while maintaining treatment efficacy

Inventive Principle:

Principle #25Self-service

2Reliability

If transcatheter valves with complex shapes and sizes are used, then valve function is improved, but delivery safety deteriorates due to tortuous anatomy

Engineering Contradiction:

Improvevalve functionVSAvoiddelivery safety

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The valve device is designed with a nested structure where the valve frame and leaflets are contained within a collapsible delivery catheter. This allows the complex-shaped valve to be compressed into a small profile for navigation through tortuous venous anatomy, then expanded at the target site to achieve proper valve function without compromising delivery safety

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS12575932B2Transcatheter valve system and method for venous insufficiency

Publication Date: 2026.03.17 ENVVENO MEDICAL CORP

AI summary

This application generally relates to an transcatheter anti-reflux venous valve endoprosthesis system, including a replacement valve, a valve support frame, crimping system, and delivery system to treat patients with chronic venous insufficiency, and method for using such a system.