Published Technical Disclosure Archive

Enhanced Dual Lumen Catheter System for Real-Time Visualization and Sampling

Publication ID: 24-11857365_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Dual Lumen Catheter System for Real-Time Visualization and Sampling,” Published Technical Disclosure No. 24-11857365_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857365_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. 11,857,365.

Summary of the Inventive Concept

An improved dual lumen catheter system that integrates a radial ultrasound probe for real-time feedback during medical procedures, enhancing diagnostic capabilities and safety.

Background and Problem Solved

The original dual lumen catheter patent (BACKGROUND) had limitations in its range of motion and diagnostic capabilities. The new inventive concept addresses these limitations by incorporating a radial ultrasound probe, enabling real-time visualization and feedback during medical procedures.

Detailed Description of the Inventive Concept

The enhanced dual lumen catheter system comprises a dual-lumen catheter with a first lumen defining a trench and a second lumen adjacent to the first lumen. The system also includes a radial ultrasound probe configured to be slidably received within the trench of the first lumen, providing real-time feedback during medical procedures. The second lumen is designed to slidably receive a medical device, allowing for real-time visualization of the device during procedures. The system enables precise navigation, improved diagnostic capabilities, and enhanced safety.

Novelty and Inventive Step

The new claims introduce the integration of a radial ultrasound probe, providing real-time feedback and visualization, which is not present in the original patent. This integration represents a non-obvious improvement over the original patent, enabling enhanced diagnostic capabilities and safety.

Alternative Embodiments and Variations

Alternative embodiments could include variations in the design of the dual-lumen catheter, such as different trench shapes or sizes, or the use of different materials. Additionally, the system could be adapted for use in various medical procedures, such as cardiovascular or neurosurgical applications.

Potential Commercial Applications and Market

The enhanced dual lumen catheter system has significant commercial potential in the medical device industry, particularly in the fields of pulmonology, cardiology, and neurosurgery. The system's ability to provide real-time visualization and feedback during medical procedures could lead to improved patient outcomes, reduced complications, and increased efficiency in medical procedures.

CPC Classifications

SectionClassGroup
A A61 A61B8/445
A A61 A61B1/00066
A A61 A61B1/00135
A A61 A61B1/00137
A A61 A61B1/018
A A61 A61B1/0125
A A61 A61B1/2676
A A61 A61B8/12
A A61 A61B8/4494
A A61 A61M25/0026
A A61 A61M25/0136
A A61 A61M2025/0037

Field of Art

Medical device engineering, specifically interventional medical imaging and catheter design, focusing on endoscopic and ultrasound-guided diagnostic and therapeutic procedures

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with expertise in catheter design, ultrasound imaging technologies, and minimally invasive medical procedures, holding advanced degrees in biomedical engineering or related fields with 3-5 years of specialized experience

Obviousness Rationale

A PHOSITA would recognize that integrating a radial ultrasound probe into the existing dual-lumen catheter design represents a predictable enhancement of the source patent's core technology. The modifications leverage known ultrasound imaging techniques to provide real-time visualization within an already established catheter framework. The technical integration follows standard medical device design principles of improving diagnostic capabilities through incremental technological additions.

Obvious Combinations & Variations

Source Patent Element
Dual-lumen catheter with first lumen defining a trench and second lumen for receiving medical devices
PTD Variation
Adding a radial ultrasound probe configured to slide within the first lumen's trench for real-time imaging
Obviousness Reasoning
Known ultrasound imaging techniques make probe integration a predictable design optimization for enhanced diagnostic capabilities
Source Patent Element
Catheter configured to be received within an endoscope's working channel
PTD Variation
Incorporating a display device in signal communication with the radial ultrasound probe to present generated images
Obviousness Reasoning
Adding imaging display is a standard medical device design choice to improve procedural visualization and diagnostic information
Source Patent Element
Catheter with adjacent lumens of different dimensions
PTD Variation
Configuring the second lumen to receive medical devices while simultaneously imaging with the ultrasound probe
Obviousness Reasoning
Simultaneous device navigation and imaging represents a logical extension of existing medical device design principles
Source Patent Element
Guide sheath for medical procedures
PTD Variation
Method for sampling tissue or delivering substances with integrated real-time ultrasound feedback
Obviousness Reasoning
Combining diagnostic imaging with interventional procedures is a well-established technique in medical device engineering
Source Patent Element
Catheter with collateral probe insertion capability
PTD Variation
Implementing a fully enclosed lumen with separate access ports for enhanced device and probe management
Obviousness Reasoning
Modular lumen design represents a predictable engineering solution for improving catheter versatility
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857365, a Person Having Ordinary Skill In The Art would find the claimed variations in the present technical disclosure obvious, as the modifications represent predictable technological enhancements that would be apparent to a skilled practitioner in medical device design. The integration of radial ultrasound imaging into an existing dual-lumen catheter framework constitutes an obvious combination of known techniques that would not require inventive insight beyond ordinary skill in the art.

Original Patent Information

Patent NumberUS 11,857,365
TitleDual lumen catheter
Assignee(s)OLYMPUS MEDICAL SYSTEMS CORP.