Temporary Occlusion and Therapeutic Delivery System

Publication ID: 24-11857694_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Temporary Occlusion and Therapeutic Delivery System,” Published Technical Disclosure No. 24-11857694_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857694_0006_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

A novel embolic particle system for temporary occlusion of vascular defects, incorporating biodegradable materials, controlled release of therapeutic agents, and advanced delivery mechanisms to promote tissue healing and reduce inflammation.

Background and Problem Solved

The original patent describes embolic particles with a first diameter for delivery through a microcatheter and a second expanded diameter for occluding vascular defects. However, these particles may cause permanent occlusion, leading to potential complications. The new inventive concept addresses this limitation by introducing temporary occlusion and therapeutic delivery capabilities.

Detailed Description of the Inventive Concept

The system comprises embolic particles made of biodegradable materials that dissolve after a predetermined time period, allowing for temporary occlusion of vascular defects. The particles can be infused with therapeutic agents, which are released in a controlled manner to promote tissue healing and reduce inflammation. The system also includes advanced delivery mechanisms, such as a microcatheter with a specialized tip for precise navigation through tortuous vessels and a flow diverting stent to trap the embolic particles.

Novelty and Inventive Step

The new claims introduce the concept of temporary occlusion using biodegradable materials, controlled release of therapeutic agents, and advanced delivery mechanisms, which are not present in the original patent. These features provide a significant improvement over the existing technology.

Alternative Embodiments and Variations

Alternative embodiments may include different biodegradable materials, varying particle sizes, or different therapeutic agents. Additionally, the system could be adapted for use in other luminal defects, such as those in the bile ducts, urethra, or vagina.

Potential Commercial Applications and Market

The temporary occlusion and therapeutic delivery system has significant commercial potential in the medical device industry, particularly in the fields of interventional radiology and cardiology. The system's ability to promote tissue healing and reduce inflammation could lead to improved patient outcomes and reduced healthcare costs.

CPC Classifications

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

Original Patent Information

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