Segmented Vascular Prosthesis for Simultaneous Aortic Arch Treatment
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Solution Overview
Problem
Current vascular prostheses lack a system to simplify and expedite surgical interventions for aneurysms in the ascending aorta, aortic arch, and descending aorta, requiring complex and invasive procedures that only highly specialized surgeons can perform, and are not suitable for severely diseased or elderly patients.
Innovation Solution
An intraluminal vascular prosthesis with a hollow cylindrical body featuring a first vascular prosthesis portion with meandering supports, a stent portion without prosthesis material, and a second vascular prosthesis portion without rings, allowing for simultaneous treatment of the three aorta sections, reducing surgical time and complexity, and enabling less experienced surgeons to perform the procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional vascular prostheses with uniform structure are used for treating aneurysms in the ascending aorta, aortic arch, and descending aorta, then the treatment requires complex invasive procedures with multiple interventions, but the surgical time and complexity are greatly increased
Solution Approach 1:
The vascular prosthesis is divided into three distinct segments: a first portion with meandering supports for the ascending aorta, a middle portion without meandering supports for the aortic arch, and a third portion with meandering supports for the descending aorta. This segmentation allows each segment to be optimized for its specific anatomical location and functional requirements, enabling simultaneous treatment of multiple aorta sections in a single intervention.
2Reliability
If traditional vascular prostheses require multiple separate interventions for different aorta sections, then treatment completeness is improved, but the procedure becomes too complex for less experienced surgeons to perform
Solution Approach 1:
The patent combines three separate treatment functions into a single integrated prosthesis device. The first portion treats the ascending aorta, the middle portion treats the aortic arch, and the third portion treats the descending aorta, all in one device that can be implanted simultaneously. This merging reduces procedural complexity while maintaining treatment completeness.
3Strength
If vascular prostheses are designed with meandering supports in all sections, then anchoring security is improved, but blood flow to branching vessels in the aortic arch is impeded
Solution Approach 1:
The prosthesis applies different structural qualities to different sections: the first and third portions have meandering supports that provide strong anchoring in the ascending and descending aorta, while the middle portion designed for the aortic arch lacks meandering supports to allow unimpeded blood flow to branching vessels. This local differentiation resolves the contradiction between anchoring security and blood flow preservation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces surgical time and complexity, allowing less experienced surgeons to treat the aortic arch and descending aorta, and can be used on severely diseased or elderly patients, while ensuring secure anchoring and unimpeded blood flow to branching vessels.
Implementation Method 1
the vascular prosthesis is radially compressed, such that its cross-sectional area is greatly reduced. With the aid of an insertion system, the vascular prosthesis is then brought into the area of the aneurysm, where it is released and, if appropriate, sutured. By virtue of the resilience of the metal frame, the vascular prosthesis expands again to its original shape
Data Source
AI summary
The invention relates to an intraluminal vascular prosthesis, preferably for implanting in the aortic arch. The prosthesis has a hollow cylindrical body with a first end and a second end; a first vascular prosthesis portion; a second vascular prosthesis portion; and a stent portion which is provided between the first and the second vascular prosthesis portion and which is rigidly connected to said vascular prosthesis portions, said stent portion being free of prosthesis material.