Elastically Deformable Retention Ring for Endoluminal Implant Sealing
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Solution Overview
Problem
Current endoluminal implantation techniques for treating blood circulation ducts, particularly at the aortic root, face challenges in achieving a secure seal between the first and second implants due to anatomical complexities and non-perpendicular orientations, leading to potential complications.
Innovation Solution
Incorporating an elastically deformable restraint ring that can increase the diameter of the introductory passage by at least 20%, allowing for a reversible expansion to accommodate the second implant securely, ensuring a consistent seal regardless of its orientation relative to the first implant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid restraint ring is used to secure the second implant, then the sealing reliability is improved, but the adaptability to non-perpendicular orientations and anatomical variations deteriorates
Solution Approach 1:
The restraint ring is designed with elastic deformability, allowing it to dynamically adapt its shape and size to accommodate non-perpendicular orientations of the second implant while maintaining reliable sealing contact. The ring can elastically deform to conform to anatomical variations and implant angle variations, then maintain sufficient contact pressure for sealing.
Solution Approach 2:
The restraint ring's key parameter is its elastic deformability, which allows it to change its dimensional parameters (diameter, shape) in response to implant orientation variations. This parameter change capability enables the ring to maintain sealing contact despite variations in implant angle and position.
2Adaptability or versatility
If the introductory passage diameter is increased to accommodate various implant orientations, then the adaptability is improved, but the risk of implant migration worsens
Solution Approach 1:
The restraint ring provides dynamic adaptation through elastic deformation rather than a fixed large diameter. The ring can elastically expand to accommodate implant orientations, then maintains sufficient constriction force to prevent migration. This dynamic behavior allows the passage to be effectively sized according to the implant's actual orientation rather than a fixed maximum size.
3Adaptability or versatility
If the restraint ring is made highly elastic to accommodate orientation variations, then the adaptability is improved, but the sealing force deteriorates
Solution Approach 1:
The restraint ring is designed with specific elastic parameters that allow controlled deformation. The material and geometry are selected so that the ring can deform sufficiently to accommodate orientation variations while maintaining adequate contact pressure for sealing. The elastic modulus and ring thickness are optimized to balance deformability and sealing force.
Solution Approach 2:
The ring exhibits dynamic elastic behavior where it deforms under the influence of implant orientation variations but maintains sufficient restoring force to ensure sealing contact. The elastic deformation is reversible and maintains continuous contact pressure, adapting to position changes while preserving sealing capability.
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 elastically deformable restraint ring provides a robust and reliable seal between the first and second implants, preventing fluid leakage and minimizing the risk of implant migration, even in anatomically challenging configurations.
Implementation Method 1
The elastically deformable restraint ring provides a robust and reliable seal between the first and second implants, preventing fluid leakage and minimizing the risk of implant migration
Data Source
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AI summary
This kit has a first implant (16) defining a window (26), and a second implant (18) with a second tubular body (42) intended to be placed in the window (26). The second implant (18) has a member for retention of the second implant (18) with respect to the first implant. The kit comprises a ring (20) which retains the second implant (18), placed on the first tubular body (22), in the window (26) and delimits an insertion passage (60) for the second implant (18). The retention ring (20) is elastically deformable in the window (26) in order to permit a reversible increase of at least 20%, advantageously of at least 30%, in the external contour of the insertion passage (60).