Enhanced Semi-Circular Ablation Catheter System for Improved Cardiac Ablation

Publication ID: 24-11857250_0001_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Semi-Circular Ablation Catheter System for Improved Cardiac Ablation,” Published Technical Disclosure No. 24-11857250_0001_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857250_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. 11,857,250.

Summary of the Inventive Concept

An advanced semi-circular ablation catheter system with improved thermal management, enhanced electrode density, integrated cooling mechanism, dynamically adjustable ablation pattern, and optimized electrode geometry, providing more efficient and safer cardiac ablation procedures.

Background and Problem Solved

The original semi-circular ablation catheter patent has limitations in thermal energy loss, electrode density, and cooling mechanisms, leading to prolonged procedure times and reduced treatment efficacy. The new inventive concept addresses these limitations by introducing novel features that improve the overall performance and safety of cardiac ablation procedures.

Detailed Description of the Inventive Concept

The enhanced semi-circular ablation catheter system comprises a selectively configurable treatment array with improved thermal management, allowing for reduced thermal energy loss during ablation procedures. The system features an increased electrode density, enabling more efficient lesion creation and reduced procedure time. An integrated cooling mechanism maintains a safe temperature range during prolonged ablation procedures. The system also incorporates a dynamically adjustable ablation pattern, allowing for real-time adjustments based on intra-procedural feedback and improving treatment efficacy. Furthermore, the catheter features an optimized electrode geometry, providing improved electrical conductivity and reduced energy loss during ablation procedures.

Novelty and Inventive Step

The new claims introduce novel features that significantly improve the performance and safety of cardiac ablation procedures, including improved thermal management, enhanced electrode density, integrated cooling mechanism, dynamically adjustable ablation pattern, and optimized electrode geometry. These features are not obvious from the original patent and provide a significant advancement in the field of cardiac ablation.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include variations in the treatment array configuration, electrode materials, cooling mechanism design, and ablation pattern adjustment algorithms. Additionally, the system could be adapted for use in other medical procedures, such as angioplasty or dilation.

Potential Commercial Applications and Market

The enhanced semi-circular ablation catheter system has significant commercial potential in the cardiac ablation market, with potential applications in electrophysiology laboratories, hospitals, and clinics. The system's improved performance and safety features could lead to increased adoption and market share, providing a competitive advantage in the medical device industry.

CPC Classifications

SectionClassGroup
A A61 A61B18/1492
A A61 A61B2017/003
A A61 A61B2018/00351
A A61 A61B2018/00357
A A61 A61B2018/00375
A A61 A61B2018/00577
A A61 A61B2018/00642
A A61 A61B2018/00702
A A61 A61B2018/00726
A A61 A61B2018/00821
A A61 A61B2018/1407
A A61 A61B2018/1467
A A61 A61B2018/1807

Field of Art

Medical device engineering, specifically interventional cardiology and electrophysiological catheter systems, focusing on ablation technologies and minimally invasive treatment devices

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with expertise in catheter design, electrical ablation techniques, thermal management, 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 would recognize that the PTD's disclosed variations represent predictable engineering improvements to the source patent's semi-circular ablation catheter design. The proposed enhancements in thermal management, electrode density, and dynamic configuration are logical extensions of existing medical device optimization strategies. These modifications would be considered routine design iterations by a skilled practitioner seeking to improve catheter performance and procedural efficiency.

Obvious Combinations & Variations

Source Patent Element
Distal assembly with flexible carrier arm and configurable geometry
PTD Variation
Dynamically adjustable ablation pattern with real-time feedback integration
Obviousness Reasoning
A PHOSITA would recognize that adding real-time adjustment capabilities to an existing configurable catheter design represents a predictable technological progression using known control system techniques
Source Patent Element
Handle assembly with actuator for transitioning distal assembly configuration
PTD Variation
Enhanced thermal management and integrated cooling mechanism
Obviousness Reasoning
Implementing advanced thermal control in a medical device is a standard engineering approach to improve device performance, which would be obvious to a skilled practitioner familiar with thermal management in interventional medical technologies
Source Patent Element
Catheter with thermocouple for temperature feedback
PTD Variation
Increased electrode density with optimized geometric configuration
Obviousness Reasoning
Modifying electrode layout to improve energy delivery and reduce procedural time represents a routine design optimization that would be apparent to a PHOSITA seeking incremental improvements in ablation technology
Source Patent Element
Semi-circular ablation catheter with configurable treatment array
PTD Variation
Integrated cooling mechanism maintaining safe temperature range during prolonged procedures
Obviousness Reasoning
Adding advanced thermal regulation to prevent overheating is a predictable solution addressing known limitations in existing ablation technologies, which would be obvious to a skilled medical device engineer
Source Patent Element
Catheter with internal pull wire and steering mechanism
PTD Variation
Dynamically adjustable ablation pattern allowing real-time procedural modifications
Obviousness Reasoning
Implementing adaptive control mechanisms in medical devices is a standard engineering approach that would be considered an obvious enhancement by a PHOSITA familiar with interventional medical technologies
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857250 and the disclosed technical variations, a person having ordinary skill in the art would find the claimed innovations obvious and therefore unpatentable. The proposed enhancements represent predictable engineering modifications that do not rise to the level of non-obvious technological advancement, thereby constituting prior art that would render subsequent similar claims invalid under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,250
TitleSemi-circular ablation catheter
Assignee(s)Medtronic Ablation Frontiers LLC