Enhanced Automated Retrievable Hemorrhage Control System

Publication ID: 24-11857443_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Automated Retrievable Hemorrhage Control System,” Published Technical Disclosure No. 24-11857443_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857443_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. 11,857,443.

Summary of the Inventive Concept

The inventive concept is an improved system for controlling catastrophic bleeding from large and medium size vessels, offering enhanced vessel wall apposition, real-time monitoring, and improved durability.

Background and Problem Solved

The original patent, 'Automated retrievable hemorrhage control system,' addresses the critical need for effective control of catastrophic bleeding from large and medium size vessels. However, it has inherent limitations, such as inadequate vessel wall contact and lack of real-time monitoring. The new inventive concept solves these problems by introducing a stent graft device with an integrated pressure sensor, a balloon with a tapered shape, and a catheter with a helical shape for improved vessel wall contact.

Detailed Description of the Inventive Concept

The enhanced system consists of a stent graft device with an integrated pressure sensor to monitor blood flow rate and fluid pressure. The device is deployed through a delivery sheath and expanded using a balloon with a controllable inflation rate. The stent graft device features a catheter with a helical shape to improve vessel wall contact and a stent with a textured surface to reduce vessel wall trauma. Additionally, the system includes a display unit to provide real-time feedback to the operator during deployment. The stent graft device also features a reinforced structure to resist fatigue and a covering material with enhanced biocompatibility to reduce tissue inflammation.

Novelty and Inventive Step

The new claims introduce several novel and non-obvious features, including the integrated pressure sensor, tapered balloon, and helical catheter shape. These features provide a significant improvement over the original patent by enabling real-time monitoring, improved vessel wall apposition, and enhanced durability.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include different sensor configurations, varied balloon shapes, and modified catheter designs. These variations would enable the system to be adapted for use in different vessel sizes and types, ensuring broad conceptual coverage.

Potential Commercial Applications and Market

The enhanced automated retrievable hemorrhage control system has significant commercial potential in the medical device industry, particularly in the areas of vascular surgery and emergency medicine. The system's improved performance and safety features make it an attractive solution for hospitals and medical centers seeking to reduce morbidity and mortality rates associated with catastrophic bleeding.

CPC Classifications

SectionClassGroup
A A61 A61F2/958
A A61 A61B5/02
A A61 A61B5/02042
A A61 A61B5/6862
A A61 A61B17/12036
A A61 A61B17/12045
A A61 A61B17/12109
A A61 A61B17/12118
A A61 A61B17/12136
A A61 A61F2/07
A A61 A61B5/024
A A61 A61B5/02055
A A61 A61B5/02158
A A61 A61B5/14539
A A61 A61B5/14542
A A61 A61B5/6853
A A61 A61B2017/00017
A A61 A61B2017/00022
A A61 A61F2/9522
A A61 A61F2002/061
A A61 A61F2002/077
A A61 A61F2002/9528
A A61 A61F2230/0067
A A61 A61F2230/0069
A A61 A61F2250/001
A A61 A61F2250/0002
A A61 A61F2250/0003
A A61 A61F2250/0024
A A61 A61F2250/0039
A A61 A61F2250/0059
A A61 A61F2250/0069
A A61 A61F2250/0096

Field of Art

Endovascular medical devices and hemorrhage control systems, specifically involving stent grafts, sensor integration, and vascular intervention techniques. Requires expertise in interventional radiology, medical device engineering, and vascular pathology

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or interventional radiologist with advanced degree, 5-10 years experience in medical device design, familiar with endovascular technologies, sensor integration, and hemodynamic monitoring systems

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent incremental improvements using standard design techniques known in endovascular device engineering. The modifications involve predictable combinations of existing sensor technologies, structural modifications, and deployment strategies that would be apparent to someone skilled in developing hemorrhage control systems.

Obvious Combinations & Variations

Source Patent Element
Stent graft with expandable metallic frame and covering material
PTD Variation
Adding textured stent surface and helical catheter shape to improve vessel wall contact
Obviousness Reasoning
Surface texture and catheter shape modifications are standard design optimization techniques for improving medical device performance and patient outcomes, representing predictable variations a PHOSITA would consider
Source Patent Element
Sensors for detecting fluid pressure and blood flow rate
PTD Variation
Integrating real-time display unit for operator feedback during deployment
Obviousness Reasoning
Adding user interface for sensor data is a known technique in medical device design, representing an obvious extension of existing sensor integration strategies
Source Patent Element
Balloon-expandable stent graft
PTD Variation
Implementing tapered balloon with controllable inflation rate
Obviousness Reasoning
Balloon shape and inflation control are standard design parameters in endovascular interventions, representing finite design solutions a PHOSITA would recognize as obvious modifications
Source Patent Element
Basic stent graft covering material
PTD Variation
Enhanced biocompatible covering to reduce tissue inflammation
Obviousness Reasoning
Material science improvements are routine in medical device development, representing predictable refinements a skilled practitioner would consider
Source Patent Element
Basic stent graft structure
PTD Variation
Reinforced structure to resist fatigue and improve durability
Obviousness Reasoning
Structural reinforcement is a standard engineering approach for improving device reliability, representing an obvious design optimization
35 U.S.C. § 103 Summary: Based on US Patent 11857443, the claimed variations in the present publication would be obvious to a Person Having Ordinary Skill In The Art, as they represent predictable combinations of known endovascular device design techniques. The incremental improvements in sensor integration, structural modification, and deployment strategies do not rise to the level of non-obvious innovation, thereby rendering potential claims in this domain anticipated and obvious.

Original Patent Information

Patent NumberUS 11,857,443
TitleAutomated retrievable hemorrhage control system
Assignee(s)Board of Regents of the University of Nebraska