Specialized Check Valve Systems for Unique Operational Environments

Publication ID: 24-11857761_0009_PTD
Published: November 07, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Specialized Check Valve Systems for Unique Operational Environments,” Published Technical Disclosure No. 24-11857761_0009_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857761_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. 11,857,761.

Summary of the Inventive Concept

The present disclosure relates to a family of check valve systems adapted for specific, narrow markets or unique operational environments, such as disaster relief, high-security areas, extreme weather conditions, emergency response, and high-risk medical procedures.

Background and Problem Solved

The original check valve patent, while effective in general medical settings, has limitations when applied to specialized contexts. The new inventive concept addresses these limitations by introducing novel adaptations for specific operational environments, ensuring reliable and secure fluid delivery in these unique situations.

Detailed Description of the Inventive Concept

The new check valve systems comprise a range of adaptations, including portable power sources, secure fluid pathways, weather-resistant coatings, self-cleaning mechanisms, tamper-evident indicators, and restricted access ports. These adaptations enable the check valves to operate effectively in low-pressure environments, high-security areas, extreme weather conditions, emergency response situations, and high-risk medical procedures.

Novelty and Inventive Step

The new claims introduce novel combinations of components and features that provide a non-obvious solution for the specific problems encountered in these unique operational environments. The adaptations and modifications made to the original check valve design result in a family of specialized check valve systems that are distinctly different from the original patent.

Alternative Embodiments and Variations

Other possible implementations of the inventive concept could include adaptations for use in space exploration, search and rescue operations, or remote medical facilities. Additionally, the concept could be expanded to incorporate advanced materials, sensors, or automation to further enhance performance and reliability.

Potential Commercial Applications and Market

The specialized check valve systems have significant commercial potential in industries such as disaster relief, healthcare, aerospace, and defense. The ability to provide reliable and secure fluid delivery in unique operational environments addresses a critical need, and the inventive concept is poised to capture a significant market share in these industries.

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

Field of Art

Medical fluid delivery systems, specifically check valve technologies for intravenous sets, involving fluid control mechanisms, medical device design, and specialized valve engineering

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with expertise in fluid control systems, knowledge of valve mechanics, understanding of medical device regulatory requirements, and experience adapting valve technologies for specialized environments

Obviousness Rationale

A PHOSITA would recognize that the published technical disclosure represents predictable variations of the source patent's check valve design, applying known engineering techniques to adapt the fundamental valve structure for specific operational contexts. The modifications represent standard design iterations that would be apparent to a skilled practitioner seeking to optimize valve performance for unique environmental challenges. The core valve mechanism remains substantially unchanged, with adaptations representing routine engineering problem-solving within the established technological framework.

Obvious Combinations & Variations

Source Patent Element
Check valve with inlet body, outlet body, and valve body defining a valve cavity
PTD Variation
Adding portable power sources and secure fluid pathways to the basic valve structure
Obviousness Reasoning
Integrating power systems and secure pathways represents a predictable design extension for medical devices, utilizing known electrical and mechanical engineering techniques to enhance functionality
Source Patent Element
Valve body with wiping extension capable of rotational and relative movement
PTD Variation
Implementing weather-resistant coatings and self-cleaning mechanisms for the wiping extension
Obviousness Reasoning
Material science techniques for protective coatings and mechanical self-cleaning are well-established engineering solutions for improving device reliability in challenging environments
Source Patent Element
Valve member with potential for configurable interactions between components
PTD Variation
Creating modular check valve systems with interchangeable valve bodies
Obviousness Reasoning
Modular design is a standard engineering approach for increasing device versatility, representing a known technique for expanding product applicability across multiple use cases
Source Patent Element
Check valve with potential for configuration variations
PTD Variation
Adding tamper-evident indicators and restricted access ports
Obviousness Reasoning
Security enhancements through mechanical indicators and access restrictions are routine design choices in medical device engineering, particularly for high-risk procedural contexts
Source Patent Element
Basic check valve fluid control mechanism
PTD Variation
Adapting valve for low-pressure and extreme environmental conditions
Obviousness Reasoning
Compensating for environmental variations through mechanical design modifications represents a standard engineering problem-solving approach with predictable solution strategies
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857761 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations obvious through routine engineering design choices. The disclosed adaptations represent predictable extensions of existing check valve technologies, employing known techniques to address specific operational challenges without requiring inventive insight beyond the ordinary skill level in medical device engineering.

Original Patent Information

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