Enhanced Intravascular Imaging Device with Improved Safety, Durability, and Imaging Quality

Publication ID: 24-11857362_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Intravascular Imaging Device with Improved Safety, Durability, and Imaging Quality,” Published Technical Disclosure No. 24-11857362_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857362_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. 11,857,362.

Summary of the Inventive Concept

This inventive concept discloses a series of direct improvements and enhancements to the original intravascular ultrasound (IVUS) imaging device, addressing inherent limitations and providing better, faster, safer, and more efficient solutions for intravascular imaging.

Background and Problem Solved

The original IVUS imaging device had limitations in terms of navigation through narrow vessels, imaging quality, safety features, and durability. This inventive concept solves these problems by introducing a reduced-diameter support member, a micro-actuator for dynamic transducer array adjustment, a pressure sensor for excessive pressure detection, a high-speed data processing unit for real-time image reconstruction, and a wear-resistant coating for reduced friction and wear.

Detailed Description of the Inventive Concept

The enhanced IVUS imaging device features an imaging assembly with a reduced-diameter support member at the distal portion, facilitating easier navigation through narrow vessels. A micro-actuator is integrated into the imaging assembly to dynamically adjust the position of the transducer array during imaging, improving imaging quality. A pressure sensor is incorporated to detect and respond to excessive pressure during imaging, enhancing safety features. The IVUS processing system is upgraded with a high-speed data processing unit to enable real-time image reconstruction and display. Additionally, a wear-resistant coating is applied to the imaging assembly to reduce friction and wear during insertion and navigation, improving durability.

Novelty and Inventive Step

The new claims introduce a series of innovative solutions that are not obvious from the original patent. The reduced-diameter support member, micro-actuator, pressure sensor, high-speed data processing unit, and wear-resistant coating provide a unique combination of features that significantly improve the performance, safety, and durability of the IVUS imaging device.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include varying the design of the reduced-diameter support member, using different types of micro-actuators or pressure sensors, or integrating additional safety features such as temperature sensors or vibration alerts. Variations could also include adapting the high-speed data processing unit for use in other medical imaging modalities or applying the wear-resistant coating to other components of the IVUS imaging device.

Potential Commercial Applications and Market

The enhanced IVUS imaging device has significant commercial potential in the medical device industry, particularly in interventional cardiology and vascular surgery. The improved safety, durability, and imaging quality features make it an attractive solution for hospitals, clinics, and medical research institutions. The market for IVUS imaging devices is expected to grow, driven by increasing demand for minimally invasive diagnostic and therapeutic procedures.

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, involving biomedical engineering, electronic circuit design, and medical imaging technologies

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer with expertise in medical imaging devices, advanced knowledge of ultrasound transducer technologies, circuit design, and medical device miniaturization, typically holding a Master's or PhD in Biomedical Engineering or related field

Obviousness Rationale

A PHOSITA would recognize that the disclosed variations represent incremental improvements to the existing intravascular imaging device design, utilizing standard engineering techniques and known methods for enhancing medical imaging technologies. The modifications address predictable challenges in medical device performance such as navigation, imaging quality, and device durability through straightforward engineering solutions. The combination of known techniques to improve device functionality would be considered an obvious extension of the existing technological framework.

Obvious Combinations & Variations

Source Patent Element
Flexible elongate member with imaging assembly at distal portion
PTD Variation
Reduced-diameter support member to facilitate navigation through narrow vessels
Obviousness Reasoning
Miniaturization is a known design approach in medical device engineering, with predictable benefits of improved navigability. A PHOSITA would recognize this as a standard optimization technique for intravascular devices.
Source Patent Element
Imaging assembly with transducer array
PTD Variation
Micro-actuator for dynamically adjusting transducer array position
Obviousness Reasoning
Precise positioning of imaging elements is a well-understood technique in ultrasound technologies, representing a predictable improvement to imaging quality using known actuation methods.
Source Patent Element
Intravascular imaging device structure
PTD Variation
Integrated pressure sensor to detect excessive pressure during imaging
Obviousness Reasoning
Safety monitoring is a standard design consideration in medical devices, with pressure sensing being a known technique for preventing potential patient injury during medical procedures.
Source Patent Element
Imaging assembly with flex circuit
PTD Variation
Wear-resistant coating to reduce friction and improve device durability
Obviousness Reasoning
Material enhancement through protective coatings is a standard engineering approach for improving device performance and longevity, representing a predictable solution to wear-related challenges.
Source Patent Element
Imaging processing system
PTD Variation
High-speed data processing unit for real-time image reconstruction
Obviousness Reasoning
Computational improvements in medical imaging are routine, with faster processing being an expected and predictable advancement in imaging technology design.
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed herein would be considered obvious to a Person Having Ordinary Skill In The Art based on the teachings of US Patent 11857362, as the modifications represent predictable engineering solutions addressing known limitations in intravascular imaging device design through standard technological optimization techniques.

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