Enhanced Intravascular Ultrasound Imaging Assembly with Advanced Support Member and Integrated Sensors

Publication ID: 24-11857362_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Intravascular Ultrasound Imaging Assembly with Advanced Support Member and Integrated Sensors,” Published Technical Disclosure No. 24-11857362_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857362_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. 11,857,362.

Summary of the Inventive Concept

An improved intravascular ultrasound imaging device featuring an enhanced support member with spiral or helical structure, integrated temperature sensors, and optimized imaging parameters for enhanced image quality and reduced risk of damage during insertion and navigation.

Background and Problem Solved

The original patent disclosed an intravascular imaging device with a support member and flex circuit positioned around it. However, the original design had limitations in terms of flexibility, risk of damage, and image quality. The new inventive concept addresses these limitations by introducing an enhanced support member with spiral or helical structure, novel flex circuit design with integrated temperature sensors, and optimized imaging parameters.

Detailed Description of the Inventive Concept

The enhanced intravascular ultrasound imaging assembly comprises an imaging assembly with an advanced support member featuring a spiral or helical structure, allowing for improved flexibility and reduced risk of damage during insertion and navigation within the vessel. The imaging assembly further includes a novel flex circuit design with integrated temperature sensors, enabling real-time monitoring of temperature fluctuations during the imaging procedure. Additionally, the system optimizes the frequency of the ultrasonic energy emitted by the transducer array based on the vessel's diameter and geometry, ensuring optimal image resolution and minimizing artifacts. The patient interface module includes an advanced noise reduction algorithm, providing improved signal-to-noise ratio and enhanced image quality. Furthermore, the imaging assembly features a removable and interchangeable transducer array, allowing for easy replacement and upgrade of the transducer array without requiring replacement of the entire imaging assembly.

Novelty and Inventive Step

The new inventive concept introduces several novel features, including the spiral or helical support member structure, integrated temperature sensors in the flex circuit, and optimized imaging parameters based on vessel geometry. These features provide improved flexibility, reduced risk of damage, and enhanced image quality, 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 varying the spiral or helical structure of the support member, using different materials for the flex circuit, or incorporating additional sensors or imaging modalities. The removable and interchangeable transducer array could also be adapted for use in other medical imaging applications.

Potential Commercial Applications and Market

The enhanced intravascular ultrasound imaging assembly has significant commercial potential in the medical imaging industry, particularly in interventional cardiology and vascular surgery. The improved image quality, reduced risk of damage, and optimized imaging parameters could lead to increased adoption and market share in these fields.

CPC Classifications

SectionClassGroup
A A61 A61B8/12
A A61 A61B8/4483
H H05 H05K1/189

Field of Art

Medical device engineering, specifically intravascular ultrasound (IVUS) imaging systems, requiring advanced knowledge of medical imaging technologies, flexible circuit design, and biomedical engineering principles

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with expertise in ultrasound imaging, flexible electronics, catheter design, and advanced medical instrumentation, typically holding a master's or doctoral degree with 3-5 years of specialized experience

Obviousness Rationale

A person having ordinary skill in the art would recognize that the PTD's proposed variations represent predictable engineering modifications to the source patent's fundamental intravascular imaging assembly design. The proposed enhancements like spiral support structure, integrated temperature sensing, and modular transducer array are logical extensions of existing medical imaging technologies that would be apparent to a skilled practitioner seeking incremental improvements in device performance and flexibility.

Obvious Combinations & Variations

Source Patent Element
Flexible elongate member with imaging assembly at distal portion
PTD Variation
Spiral or helical support member structure for improved flexibility
Obviousness Reasoning
Modifying support member geometry is a routine design optimization technique for medical devices, representing a predictable variation that would enhance device navigation and reduce insertion trauma
Source Patent Element
Flex circuit positioned around support member
PTD Variation
Integrated temperature sensors within flex circuit design
Obviousness Reasoning
Adding environmental sensing capabilities to medical device circuits is a known technique for improving diagnostic and safety monitoring, representing an obvious enhancement to existing flex circuit technologies
Source Patent Element
Imaging assembly with transducer array
PTD Variation
Removable and interchangeable transducer array with frequency optimization based on vessel geometry
Obviousness Reasoning
Adapting imaging parameters and creating modular component designs are standard engineering approaches for improving medical imaging system performance and maintainability
Source Patent Element
Basic intravascular imaging device structure
PTD Variation
Advanced noise reduction algorithm in patient interface module
Obviousness Reasoning
Implementing signal processing improvements is a predictable solution for enhancing image quality, utilizing well-established digital signal processing techniques common in medical imaging
Source Patent Element
Ultrasound imaging device with flex circuit
PTD Variation
Dynamic frequency adjustment based on vessel diameter
Obviousness Reasoning
Adaptive imaging parameter optimization represents a logical extension of existing imaging technologies, applying known signal processing principles to improve diagnostic accuracy
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857362 and the comprehensive technical disclosure herein, a person having ordinary skill in the art would find the proposed intravascular imaging device variations obvious and lacking inventive step. The systematic modifications to support member geometry, flex circuit design, and imaging parameters represent predictable engineering solutions that would be readily conceived by a skilled practitioner seeking incremental improvements in medical imaging technology.

Original Patent Information

Patent NumberUS 11,857,362
TitleImaging assembly for intravascular imaging device and associated devices, systems, and methods
Assignee(s)PHILIPS IMAGE GUIDED THERAPY CORPORATION