Enhanced Check Valve with Particulate Removal and Sensing

Publication ID: 24-11857761_0006_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Check Valve with Particulate Removal and Sensing,” Published Technical Disclosure No. 24-11857761_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857761_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. 11,857,761.

Summary of the Inventive Concept

An improved check valve design incorporating particulate removal and sensing features to enhance fluid flow safety and efficiency in medical applications.

Background and Problem Solved

The original check valve patent, while effective in preventing backflow, lacks mechanisms to address particulate matter accumulation, which can compromise fluid flow and patient safety. This new inventive concept solves this problem by integrating particulate removal and sensing features, ensuring a safer and more efficient fluid delivery system.

Detailed Description of the Inventive Concept

The enhanced check valve comprises a valve body defining a valve cavity, which incorporates a filter mesh or spiral-shaped wiping extension to capture and remove particulate matter. Additionally, the valve cavity may include a sensor to detect particulate matter, triggering the wiping extension to remove the detected particles. The wiping extension can be modular and removable, allowing for easy replacement and cleaning. Furthermore, the valve cavity can be designed with an adjustable wiping extension length to accommodate varying fluid flow rates and particulate sizes.

Novelty and Inventive Step

The integration of particulate removal and sensing features in the check valve, as described in the new claims, represents a significant improvement over the original patent. The inventive step lies in the combination of these features, which enables real-time particulate detection and removal, ensuring a higher level of fluid flow safety and efficiency.

Alternative Embodiments and Variations

Alternative embodiments may include different filter mesh materials, varying spiral shapes and sizes, or alternative sensing technologies. Additionally, the wiping extension could be designed with different materials or geometries to optimize particulate removal efficiency.

Potential Commercial Applications and Market

The enhanced check valve has significant commercial potential in the medical industry, particularly in applications involving fluid delivery systems, such as IV sets, dialysis machines, and surgical instruments. The improved safety and efficiency features can reduce the risk of patient complications, minimize equipment downtime, and enhance overall healthcare outcomes.

CPC Classifications

SectionClassGroup
A A61 A61M5/16881
A A61 A61M39/24
B B08 B08B1/005
B B08 B08B1/02
F F16 F16K15/02
F F16 F16K15/023
A A61 A61M2039/246
A A61 A61M2209/10

Original Patent Information

Patent NumberUS 11,857,761
TitleCheck valve
Assignee(s)CareFusion 303, Inc.