Enhanced Repositionable Endoluminal Support Structure for Improved Vessel Compatibility and Valve Functionality

Publication ID: 24-11857414_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Repositionable Endoluminal Support Structure for Improved Vessel Compatibility and Valve Functionality,” Published Technical Disclosure No. 24-11857414_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857414_0001_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,414.

Summary of the Inventive Concept

This inventive concept introduces a series of direct improvements and enhancements to the original repositionable endoluminal support structure, focusing on real-time adaptability, secure anchoring, and optimized vessel support. These advancements enable more effective and efficient implantation, improved valve functionality, and reduced risk of complications.

Background and Problem Solved

The original patent's repositionable endoluminal support structure, while innovative, has limitations in terms of adaptability to changing vessel diameters, secure anchoring, and optimal vessel support. The new inventive concept addresses these limitations by incorporating advanced sensor technology, integrated anchoring mechanisms, and dynamic strut geometries, ensuring improved vessel compatibility and valve functionality.

Detailed Description of the Inventive Concept

The enhanced repositionable endoluminal support structure comprises a built-in sensor to detect changes in vessel diameter, which is connected to a microcontroller that adjusts the stent's expansion in real-time. Additionally, the structure features an integrated anchoring mechanism designed to securely fasten the valve to the vessel wall, reducing the risk of valve migration. The dynamic strut geometry adapts to the changing shape of the vessel lumen, ensuring optimal vessel support and minimizing the risk of stent fracture. Furthermore, the system includes a catheter with an integrated imaging module, providing real-time visualization of the implant site, enabling more accurate and precise implantation of the support structure.

Novelty and Inventive Step

The new inventive concept introduces a novel combination of sensor technology, integrated anchoring mechanisms, and dynamic strut geometries, which are not present in the original patent. These advancements provide a significant improvement in vessel compatibility and valve functionality, making the new concept non-obvious and inventive compared to the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include variations in sensor technology, anchoring mechanisms, and strut geometries. For example, the sensor could be replaced with a pressure sensor to monitor the pressure gradient across the valve, or the anchoring mechanism could be modified to accommodate different vessel types. Additionally, the dynamic strut geometry could be adapted for use in other medical devices, such as stents or grafts.

Potential Commercial Applications and Market

The enhanced repositionable endoluminal support structure has significant commercial potential in the cardiovascular medical device market, particularly in the areas of transcatheter heart valve replacement and vascular stenting. The improved adaptability, secure anchoring, and optimized vessel support offered by this inventive concept could lead to increased adoption and market share in these growing markets.

CPC Classifications

SectionClassGroup
A A61 A61F2/2427
A A61 A61F2/24
A A61 A61F2/243
A A61 A61F2/2409
A A61 A61F2/2412
A A61 A61F2/2418
A A61 A61F2/2469
A A61 A61F2/844
A A61 A61F2/2421
A A61 A61F2/82
A A61 A61F2/94
A A61 A61F2210/0076
A A61 A61F2220/0041
A A61 A61F2220/0075
A A61 A61F2230/0054
A A61 A61F2230/0091
A A61 A61F2250/001
A A61 A61F2250/0004
Y Y10 Y10T29/49826

Field of Art

Medical Device Engineering, specifically Interventional Cardiology and Endovascular Prosthetic Devices, focusing on implantable stents and heart valve technologies with expertise in biomechanical design, sensor integration, and minimally invasive medical device engineering

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with advanced degree, 5-10 years experience in cardiovascular device development, familiar with catheter-based interventions, stent mechanics, and emerging sensor technologies for medical implants

Obviousness Rationale

A PHOSITA would recognize that the PTD's proposed enhancements represent predictable technological extensions of the source patent's core endoluminal support structure design. The integration of real-time sensing, dynamic strut geometry, and enhanced anchoring mechanisms are logical incremental improvements that leverage known medical device engineering principles. These variations solve known limitations in existing stent technologies through straightforward engineering adaptations that would be apparent to a skilled practitioner in the field.

Obvious Combinations & Variations

Source Patent Element
Prosthetic heart valve frame with interconnected struts and expandable geometry
PTD Variation
Dynamic strut geometry that adapts to vessel lumen shape
Obviousness Reasoning
Modifying strut design to improve vessel compatibility is a predictable design optimization using known materials science and biomechanical engineering techniques
Source Patent Element
Catheter-based delivery system for endoluminal support structure
PTD Variation
Integrated imaging module for real-time visualization during implantation
Obviousness Reasoning
Adding imaging capabilities to medical device delivery systems is a known technique for improving procedural precision, representing an obvious enhancement to existing catheter technologies
Source Patent Element
Expandable prosthetic heart valve frame
PTD Variation
Built-in sensor connected to microcontroller for real-time diameter adjustment
Obviousness Reasoning
Incorporating sensor feedback for dynamic device adjustment is a standard approach in medical device engineering, representing a predictable application of control system principles
Source Patent Element
Endoluminal support structure with expandable frame
PTD Variation
Integrated anchoring mechanism to reduce valve migration
Obviousness Reasoning
Developing mechanical solutions to prevent device migration is a well-recognized challenge in medical device design, with multiple known approaches for improving implant stability
Source Patent Element
Prosthetic heart valve with pull wire actuation
PTD Variation
Pressure sensor to monitor and adjust valve opening/closing
Obviousness Reasoning
Implementing physiological feedback mechanisms is a standard engineering approach for improving medical device performance, representing an obvious extension of existing control strategies
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857414 and the disclosed technical variations, a person having ordinary skill in the art would find the proposed endoluminal support structure enhancements to be obvious modifications that do not rise to the level of non-obvious invention. The incremental technological improvements represent predictable solutions within the existing knowledge of medical device engineering, thereby rendering potential claims to such variations unpatentable under 35 U.S.C. ยง 103.

Original Patent Information

Patent NumberUS 11,857,414
TitleRepositionable endoluminal support structure and its applications
Assignee(s)Edwards Lifesciences CardiAQ LLC