Enhanced Blood Flow Assistance Systems

Publication ID: 24-11857777_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Blood Flow Assistance Systems,” Published Technical Disclosure No. 24-11857777_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857777_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. 11,857,777.

Summary of the Inventive Concept

The present inventive concept discloses novel enhancements to blood flow assistance systems, addressing limitations of existing blood pumps by providing miniaturized, self-cleaning, and modular designs with real-time monitoring capabilities.

Background and Problem Solved

The original patent disclosed a blood flow assist system with an impeller assembly. However, the system had limitations, including a large incision requirement, potential thrombus formation, and lack of real-time monitoring. The present inventive concept addresses these limitations by introducing a miniaturized pump with a retractable impeller, a self-cleaning mechanism, and real-time monitoring capabilities.

Detailed Description of the Inventive Concept

The enhanced blood flow assistance system comprises a miniaturized pump with a retractable impeller that can be inserted through a small incision and expanded to a larger diameter within a blood vessel. The system also features a self-cleaning mechanism that reduces thrombus formation and improves overall system efficiency. Additionally, the system includes an integrated sensor for real-time monitoring of blood flow rates, pressure, and oxygen saturation, allowing for optimized pump performance and minimized adverse effects. The system may also comprise interchangeable impeller modules with varying geometries and sizes, enabling customized treatment of patients with different blood flow requirements. Furthermore, the system may include an automated priming mechanism that reduces air entrainment and ensures rapid, safe deployment in emergency situations.

Novelty and Inventive Step

The present inventive concept introduces a novel combination of miniaturization, self-cleaning, and real-time monitoring capabilities, which are not taught by the original patent. The inventive step lies in the integration of these features to provide a more efficient, safer, and more effective blood flow assistance system.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include different impeller geometries, varying sensor configurations, and modular designs with multiple interchangeable components. Variations may also include different materials, sizes, and shapes of the pump and impeller, as well as different deployment methods and automation levels.

Potential Commercial Applications and Market

The enhanced blood flow assistance system has significant commercial potential in the medical device industry, particularly in the fields of cardiac assist devices and mechanical circulatory support. The system's miniaturized design, self-cleaning mechanism, and real-time monitoring capabilities make it an attractive solution for hospitals, clinics, and medical research institutions.

Field of Art

Cardiac medical devices, specifically mechanical circulatory support systems and blood flow assist technologies, requiring advanced biomedical engineering knowledge, understanding of fluid dynamics, and medical device design principles

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer with expertise in cardiovascular medical devices, familiar with minimally invasive surgical techniques, fluid mechanics, and advanced materials engineering, typically holding a PhD or equivalent professional experience in medical device design

Obviousness Rationale

A PHOSITA would recognize that the published technical disclosure represents predictable variations and incremental improvements to existing blood pump technologies. The disclosed enhancements like miniaturization, self-cleaning mechanisms, and integrated sensors are logical extensions of known blood flow assist system design principles. These variations would be considered obvious modifications that address known limitations in existing cardiac assist devices.

Obvious Combinations & Variations

Source Patent Element
Percutaneously deliverable impeller assembly with expandable struts
PTD Variation
Retractable impeller that can be inserted through small incision and expanded within blood vessel
Obviousness Reasoning
Predictable design optimization using known expandable medical device deployment techniques, representing a routine engineering design choice for minimizing invasiveness
Source Patent Element
Rotor assembly with impeller shaft and sleeve bearing
PTD Variation
Integrated sensor for real-time monitoring of blood flow rates, pressure, and oxygen saturation
Obviousness Reasoning
Known technique of adding monitoring capabilities to medical devices, representing a standard approach to improving device performance and patient safety
Source Patent Element
Blood vessel wall engagement mechanism using struts
PTD Variation
Modular pump assembly with interchangeable impeller modules of varying geometries and sizes
Obviousness Reasoning
Predictable design variation using known modular medical device design principles, allowing customization based on patient-specific requirements
Source Patent Element
Method of operating blood flow assist system
PTD Variation
Automated priming mechanism to reduce air entrainment and ensure rapid deployment
Obviousness Reasoning
Obvious improvement addressing known technical challenges in medical device deployment, representing a standard engineering solution to minimize procedural risks
Source Patent Element
Percutaneous delivery of impeller assembly
PTD Variation
Self-cleaning mechanism to reduce thrombus formation
Obviousness Reasoning
Known technique for addressing biocompatibility challenges in implantable medical devices, representing a predictable solution to a recognized medical device limitation
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857777 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations obvious and anticipated, as the disclosed enhancements represent predictable design optimizations using known medical device engineering techniques that would be apparent to a skilled practitioner in the field of cardiac assist technologies.

Original Patent Information

Patent NumberUS 11,857,777
TitleBlood pumps
Assignee(s)Procyrion, Inc.