Pseudoelastic Antenna Support for Vascular Implantation
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Solution Overview
Problem
Conventional implantable antennas are often bulky and restrictive, making them unsuitable for minimally invasive vascular implantation and other applications where space is limited.
Innovation Solution
The use of pseudoelastic and superelastic materials, such as Nitinol, for the antenna support structure, which provides flexibility and adaptability by allowing reversible deformation under large strains, enabling compact design and minimally invasive insertion while maintaining structural integrity and electrical conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional antennas are constructed in enclosures, then structural support is provided, but the device size becomes substantial and restrictive
Solution Approach 1:
The patent replaces rigid enclosures with flexible support structures made of pseudoelastic materials that can provide structural support while conforming to the implantation site geometry, thereby reducing overall device volume and enabling minimally invasive insertion
Solution Approach 2:
The patent utilizes phase transformation properties of pseudoelastic materials to change the mechanical parameters of the support structure, allowing it to deform reversibly under stress and return to its original shape, thus providing support without requiring substantial enclosure volume
2Stability of the object's composition
If rigid support structures are used, then structural integrity is maintained, but adaptability to various biological environments is reduced
Solution Approach 1:
The patent employs dynamic support structures made of pseudoelastic materials that can adapt their shape and flexibility in response to mechanical stress and environmental conditions, allowing the antenna to conform to various biological geometries while maintaining structural integrity through reversible deformation
Solution Approach 2:
The patent uses composite structures combining conductive elements with pseudoelastic material matrices, creating a support structure that simultaneously provides structural integrity, electrical conductivity, and adaptability to different implantation sites
3Adaptability or versatility
If flexible materials are used for support, then adaptability and flexibility are improved, but structural integrity under mechanical stress may be compromised
Solution Approach 1:
The patent exploits the stress-induced phase transformation of pseudoelastic materials, where mechanical stress triggers a martensitic transformation that allows large reversible deformations without permanent damage, thus maintaining structural integrity while providing exceptional flexibility and adaptability
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 pseudoelastic materials enable the antenna to accommodate various biological environments, withstand mechanical stress, and maintain functionality over extended cycles, allowing for flexible implantation and reduced tissue stress, enhancing the adaptability and effectiveness of implantable antennas.
Implementation Method 1
The use of pseudoelastic and superelastic materials, such as Nitinol, for the antenna support structure, which provides flexibility and adaptability by allowing reversible deformation under large strains
Implementation Method 2
The use of pseudoelastic and superelastic materials, such as Nitinol, for the antenna support structure, which provides flexibility and adaptability by allowing reversible deformation under large strains
Data Source
AI summary
As described herein vascular anchoring systems are used to position an implant in a vascular area such as a bifurcated vasculature with relatively high fluid flow, for instance, in an area of a pulmonary artery with associated left and right pulmonary arteries. Implementations include an anchoring trunk member having a first anchoring trunk section and a second anchoring trunk section. Further implementations include a first anchoring branch member extending from the anchoring trunk member. Still further implementations include a second anchoring branch member extending from the anchoring trunk member.