Specialized Embolic Particles for Niche Environments

Publication ID: 24-11857694_0009_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Specialized Embolic Particles for Niche Environments,” Published Technical Disclosure No. 24-11857694_0009_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857694_0009_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. 11,857,694.

Summary of the Inventive Concept

An embolic particle system adapted for specific, high-stakes environments, such as high-security facilities, disaster relief situations, and extreme weather conditions, offering enhanced occlusion capabilities and improved safety.

Background and Problem Solved

The original embolic particles patent (Particles) addressed the need for occluding vascular defects, but it did not consider the unique challenges of specialized environments. The new inventive concept solves this problem by adapting the embolic particles for high-security, disaster relief, and extreme weather conditions, ensuring reliable occlusion in these critical situations.

Detailed Description of the Inventive Concept

The new inventive concept involves a system comprising embolic particles with a first diameter that can fit through a microcatheter and a second expanded diameter once implanted. The particles are made of a biocompatible substance and are designed to be delivered through the microcatheter using a flow diverting stent. In high-security environments, the microcatheter has a size of at most about 0.0165 inches, and the embolic particles are sized to avoid clogging or occluding the microcatheter. In disaster relief situations, the embolic particles are deployed through the microcatheter and trapped by the flow diverting stent. In extreme weather conditions, the kit includes a microcatheter, a flow diverting stent, and the embolic particles, ensuring reliable occlusion.

Novelty and Inventive Step

The new claims introduce novel adaptations for high-security, disaster relief, and extreme weather conditions, which were not addressed in the original patent. The inventive step lies in the specific design and sizing of the embolic particles, microcatheter, and flow diverting stent to ensure reliable occlusion in these unique environments.

Alternative Embodiments and Variations

Alternative embodiments could include varying the material composition of the embolic particles, modifying the flow diverting stent's mesh structure, or incorporating additional components to enhance the system's functionality. Variations could also include adapting the system for other specialized environments, such as space exploration or high-altitude operations.

Potential Commercial Applications and Market

The new inventive concept has significant commercial potential in the medical device industry, particularly in the areas of interventional radiology, cardiology, and neurology. The targeted markets include high-security facilities, disaster relief organizations, and medical providers operating in extreme weather conditions.

CPC Classifications

SectionClassGroup
A A61 A61L24/06
A A61 A61L24/001
C C08 C08F222/385
A A61 A61L2430/36

Field of Art

Medical device engineering, specifically interventional radiology and embolic particle design for vascular occlusion, requiring expertise in polymer chemistry, microcatheter technologies, and medical device manufacturing

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device researcher with advanced degree, experience in polymer synthesis, microfabrication techniques, and understanding of minimally invasive medical interventions

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable extensions of the source patent's core technology by adapting the embolic particle system to specific environmental contexts using known medical device design principles. The fundamental particle mechanics, microcatheter sizing, and occlusion strategies remain substantially consistent with the original patent's teachings. The modifications represent routine engineering adaptations that would be obvious to a skilled practitioner seeking to optimize embolic particle deployment in specialized scenarios.

Obvious Combinations & Variations

Source Patent Element
Embolic particles with first and second diameter configurations for microcatheter delivery
PTD Variation
Applying the particle design to high-security, disaster relief, and extreme weather environments
Obviousness Reasoning
Predictable application of known medical device technology to novel use cases, representing standard design adaptation strategy
Source Patent Element
Microcatheter inner diameter specifications (0.0155-0.0170 inches)
PTD Variation
Specifying microcatheter size of at most 0.0165 inches for specialized environments
Obviousness Reasoning
Routine design optimization within established dimensional ranges, representing a known technique for medical device sizing
Source Patent Element
Biocompatible polymer-based particle composition
PTD Variation
Incorporating flow diverting stent to enhance particle deployment and occlusion
Obviousness Reasoning
Known intervention technique of using supplementary medical devices to improve primary device functionality, representing a finite identified solution
Source Patent Element
Embolic particle system for occluding luminal defects
PTD Variation
Expanding application to specific environmental contexts like disaster relief and high-security scenarios
Obviousness Reasoning
Predictable extension of medical device technology to address specialized use cases, representing standard engineering problem-solving approach
Source Patent Element
Particle size and delivery mechanism through microcatheter
PTD Variation
Adding precise sizing requirements to ensure compatibility with flow diverting stent mesh structure
Obviousness Reasoning
Routine engineering optimization to ensure device interoperability, representing a known technique for medical device design
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857694, a person having ordinary skill in the art would find the variations disclosed in the Published Technical Disclosure to be obvious extensions of the prior art, representing predictable modifications within the established technological framework of embolic particle systems. The disclosed variations constitute prima facie obviousness under 35 U.S.C. ยง 103, as they represent routine engineering adaptations that would be apparent to a skilled practitioner in the field of interventional medical devices.

Original Patent Information

Patent NumberUS 11,857,694
TitleParticles
Assignee(s)MicroVention, Inc.