Integrated Vena Cava Stent Valve for Tricuspid Regurgitation
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Solution Overview
Problem
Current devices for treating tricuspid regurgitation are complex and difficult to deploy, often requiring multiple valve placements or annular ring replacements, which pose high surgical risks and are not easily feasible in all patients.
Innovation Solution
A device comprising a first and second tubular stent member for the superior and inferior vena cava, a tubular stent graft member with a covering for the right atrium, and a stented valve member that allows unidirectional blood flow from the vena cava to the right atrium, preventing backflow, facilitating secure and convenient tricuspid valve replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple valve placements or annular ring replacements are used to treat tricuspid regurgitation, then the treatment effectiveness is improved, but the device complexity and surgical risk increase
Solution Approach 1:
The patent combines multiple functional components (stent members for vena cava, stent graft member for right atrium, and stented valve member) into a single integrated device that can be deployed together, replacing the need for multiple separate valve placements or annular ring replacements. This merging approach maintains treatment effectiveness while reducing procedural complexity and surgical risk.
2Reliability
If multiple valve placements or annular ring replacements are used to treat tricuspid regurgitation, then the treatment effectiveness is improved, but the ease of operation is reduced
Solution Approach 1:
The device is segmented into distinct functional modules (first and second tubular stent members, tubular stent graft member, and stented valve member), each designed for specific anatomical locations. This segmentation allows the complex device to be deployed in a systematic, step-by-step manner through the vena cava and into the right atrium, improving ease of operation compared to placing multiple separate valves or rings.
Solution Approach 2:
By combining multiple functional components into a single integrated device that can be deployed together, the procedure is simplified from multiple separate interventions to one coordinated deployment, significantly improving ease of operation while maintaining treatment effectiveness.
3Reliability
If complex surgical procedures are used to treat tricuspid regurgitation, then the treatment effectiveness is improved, but the surgical risk increases
Solution Approach 1:
The device is divided into segments that can be navigated and deployed through the venous system (vena cava) into the right atrium, avoiding the need for complex open-heart surgery. This segmented approach reduces surgical risk by utilizing less invasive access routes while maintaining treatment effectiveness.
Solution Approach 2:
By integrating multiple functions into one deployable device, the procedure is simplified and standardized, reducing the variability and complexity associated with multiple separate surgical interventions, thereby lowering overall surgical risk while maintaining effective treatment.
Data Source
AI summary
A device for implantation into the heart of a mammal and a method for treating tricuspid regurgitation using the device. The device includes two tubular stent members separated by a stent graft member which has a functional stented valve member attached thereto allowing unidirectional blood flow from the vena cava into the right atrium.