Enhanced Intravenous Tubing Venting Assembly

Publication ID: 24-11857774_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Intravenous Tubing Venting Assembly,” Published Technical Disclosure No. 24-11857774_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857774_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. 11,857,774.

Summary of the Inventive Concept

An innovative venting system for intravenous tubing that improves patient safety, reduces airlocks, and enhances fluid delivery efficiency by incorporating advanced features such as pressure-activated valves, air bubble detection, and self-cleaning mechanisms.

Background and Problem Solved

The original patent for the intravenous tubing venting assembly addressed the issue of air bubbles in IV tubing, but had limitations in terms of air removal efficiency, fluid flow turbulence, and potential clogging. The new inventive concept builds upon the original patent by introducing direct improvements and enhancements to overcome these limitations.

Detailed Description of the Inventive Concept

The enhanced intravenous tubing venting assembly comprises a venting valve with a pressure-activated mechanism that opens to allow air bubbles to escape along a venting path while preventing fluid passage through the venting path when a predetermined pressure threshold is exceeded. Additionally, the system includes an air extraction device in-line with the intravenous tubing, which provides a pathway for air removal from the fluid flow through the tubing. The branch is oriented to minimize turbulence and optimize air removal. Furthermore, the venting valve is equipped with a sensor that detects air bubbles in the intravenous tubing and triggers the opening of the venting valve. The system also incorporates a self-cleaning mechanism that removes debris and contaminants from the venting path to ensure consistent air removal and prevent clogging.

Novelty and Inventive Step

The new inventive concept introduces several novel features that differentiate it from the original patent, including the pressure-activated valve, air bubble detection, and self-cleaning mechanism. These advancements provide a significant improvement in air removal efficiency, fluid flow turbulence reduction, and patient safety.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include different valve designs, such as solenoid-activated valves or membrane-based valves. Additionally, the air extraction device could be replaced with other air removal mechanisms, such as ultrasonic or vacuum-based systems. The self-cleaning mechanism could also be modified to use different cleaning agents or frequencies.

Potential Commercial Applications and Market

The enhanced intravenous tubing venting assembly has significant commercial potential in the medical device industry, particularly in the areas of patient safety, fluid delivery efficiency, and healthcare cost reduction. The target market includes hospitals, clinics, and medical research institutions.

Field of Art

Medical Device Engineering, specifically Intravenous (IV) Fluid Delivery Systems and Air Removal Technologies

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with expertise in fluid dynamics, valve mechanisms, and medical tubing systems, typically holding a Bachelor's or Master's degree in biomedical engineering with 3-5 years of experience in medical device design

Obviousness Rationale

A person having ordinary skill in the art would recognize that the proposed variations represent predictable engineering solutions to known challenges in IV tubing air removal. The PTD's proposed enhancements such as pressure-activated valves, air bubble detection, and self-cleaning mechanisms are logical extensions of the source patent's fundamental air extraction approach. These modifications represent standard problem-solving techniques in medical device engineering that would be apparent to a skilled practitioner seeking to improve air removal efficiency and patient safety.

Obvious Combinations & Variations

Source Patent Element
Flexible chamber for air extraction in IV tubing
PTD Variation
Pressure-activated valve mechanism for air bubble removal
Obviousness Reasoning
A PHOSITA would recognize that adding a pressure-sensitive valve is a predictable engineering solution to improve air extraction, using known fluid dynamics principles to enhance the original air removal concept
Source Patent Element
Fluid inlet and outlet tubes in a chamber
PTD Variation
Air bubble detection sensor integrated with venting valve
Obviousness Reasoning
Incorporating electronic sensing technology is a routine design enhancement that would be obvious to a skilled engineer seeking to improve the reliability and automation of air removal processes
Source Patent Element
Basic venting assembly for IV tubing
PTD Variation
Self-cleaning mechanism to prevent venting path clogging
Obviousness Reasoning
Implementing a self-cleaning feature is a predictable solution to a known problem of potential blockage in medical fluid delivery systems, representing a standard approach to improving device reliability
Source Patent Element
Chamber configured to release airlocks
PTD Variation
Alternative valve designs including solenoid-activated and membrane-based valves
Obviousness Reasoning
Exploring alternative valve mechanisms is a standard design approach that would be obvious to a PHOSITA, representing a finite set of known technological solutions for fluid control
Source Patent Element
Basic air extraction device
PTD Variation
Alternative air removal mechanisms like ultrasonic or vacuum-based systems
Obviousness Reasoning
Substituting alternative air removal technologies represents a predictable engineering variation that would be obvious to a skilled practitioner familiar with fluid management techniques
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857774 and the published technical disclosure, a person having ordinary skill in the art would find the proposed variations in intravenous tubing air removal technology to be obvious and lacking inventive step. The incremental improvements in valve mechanisms, air detection, and cleaning technologies represent predictable engineering solutions that do not rise to the level of non-obvious innovation required for patent protection.

Original Patent Information

Patent NumberUS 11,857,774
TitleIntravenous tubing venting assembly
Assignee(s)UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED