Enhanced Repositionable Endoluminal Support Structure for Improved Prosthetic Device Delivery

Publication ID: 24-11857414_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Repositionable Endoluminal Support Structure for Improved Prosthetic Device Delivery,” Published Technical Disclosure No. 24-11857414_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857414_0006_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

An innovative repositionable endoluminal support structure that offers enhanced flexibility, radial force, and real-time feedback, enabling precise and efficient delivery of prosthetic devices in various medical procedures.

Background and Problem Solved

The original patent for the repositionable endoluminal support structure and its applications had limitations in terms of flexibility, radial force, and real-time feedback. The new inventive concept addresses these limitations by incorporating advanced materials, sensors, and control systems, enabling improved prosthetic device delivery and reduced procedural risks.

Detailed Description of the Inventive Concept

The enhanced repositionable endoluminal support structure comprises a plurality of longitudinal strut members interconnected by swivel joints, fabricated from shape-memory alloys that allow for repeated expansion and contraction without compromising structural integrity. The structure includes sensors providing real-time feedback on its position and orientation, and is coated with biocompatible materials to reduce thrombogenicity and promote endothelialization. The system features a control unit integrated with a visualization system, enabling real-time adjustments to the structure's position and orientation. The strut members are designed to provide a predetermined amount of radial force to maintain the structure's shape and position within a body lumen.

Novelty and Inventive Step

The new claims introduce novel features such as enhanced flexibility, real-time feedback, and advanced materials, which are not present in the original patent. These innovations provide a significant improvement in prosthetic device delivery, making the new inventive concept non-obvious and novel compared to the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include different types of sensors, control systems, or visualization tools. Variations could also include different materials or geometries for the strut members, or additional features such as temperature control or drug elution capabilities.

Potential Commercial Applications and Market

The enhanced repositionable endoluminal support structure has significant commercial potential in the medical device industry, particularly in the fields of cardiovascular, neurovascular, and peripheral vascular interventions. The target market includes hospitals, clinics, and medical research institutions, with potential for widespread adoption and revenue growth.

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 endovascular interventional technologies focusing on implantable stents and support structures for prosthetic device delivery, requiring expertise in materials science, mechanical engineering, and interventional medical procedures

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with advanced degree (MS/PhD), 5-10 years experience in cardiovascular device development, familiar with shape-memory alloys, catheter-based delivery systems, and medical device materials and manufacturing techniques

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable engineering improvements to the source patent's endoluminal support structure, utilizing known materials and design techniques to enhance performance. The modifications of adding sensors, shape-memory alloys, and biocompatible coatings are logical extensions of existing stent design principles that would be apparent to a skilled practitioner seeking to optimize medical device functionality and patient outcomes.

Obvious Combinations & Variations

Source Patent Element
Frame with plurality of struts interconnected by joints
PTD Variation
Struts made from shape-memory alloys with swivel joints allowing repeated expansion/contraction
Obviousness Reasoning
Material selection and joint design are standard design choices for improving stent flexibility and durability, representing a predictable variation using known engineering techniques
Source Patent Element
Prosthetic heart valve delivery system with actuation member
PTD Variation
Integration of sensors providing real-time position and orientation feedback
Obviousness Reasoning
Adding sensing capabilities to medical devices is a known technique for improving procedural precision, representing an obvious enhancement to existing delivery systems
Source Patent Element
Endoluminal support structure for prosthetic device
PTD Variation
Biocompatible coating to reduce thrombogenicity and promote endothelialization
Obviousness Reasoning
Surface modification to improve biocompatibility is a standard approach in medical device design, representing a finite and predictable solution to known biological interaction challenges
Source Patent Element
Catheter-based delivery system with expandable frame
PTD Variation
Control unit integrated with visualization system for real-time positioning
Obviousness Reasoning
Combining control systems with visualization technologies is a known technique for improving medical device precision and operator control
Source Patent Element
Stent frame designed to maintain vessel patency
PTD Variation
Struts engineered to provide predetermined radial force for precise positioning
Obviousness Reasoning
Optimizing radial force characteristics is a standard engineering approach for improving stent performance, representing a predictable design optimization
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed in this Published Technical Disclosure would have been obvious to a Person Having Ordinary Skill In The Art at the time of invention, when viewed in light of US Patent 11857414, as the modifications represent predictable engineering improvements utilizing known techniques in medical device design, materials science, and interventional technologies.

Original Patent Information

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