Published Technical Disclosure Archive

Enhanced Needleless Connector Systems with Advanced Features

Publication ID: 24-11857752_0006_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Needleless Connector Systems with Advanced Features,” Published Technical Disclosure No. 24-11857752_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857752_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. 11,857,752.

Summary of the Inventive Concept

This inventive concept discloses a series of direct improvements and enhancements to the original high-flow, needleless connector, addressing inherent limitations and providing advanced features for improved safety, efficiency, and reliability.

Background and Problem Solved

The original high-flow, needleless connector, while providing a safe connection for infusion of IV fluids and other medical applications, still presents limitations in terms of contamination risk, flow rate, and maintenance complexity. The new inventive concept addresses these limitations by introducing self-cleaning mechanisms, vortex-induced flow acceleration, integrated pressure sensors, retractable valve members, and dynamic valve position adjustment.

Detailed Description of the Inventive Concept

The enhanced needleless connector systems comprise a range of innovative features, including a self-cleaning mechanism that leverages fluid flow to remove debris from internal surfaces, reducing contamination risk. A vortex-induced flow acceleration mechanism is incorporated to increase flow rate and reduce pressure drop. An integrated pressure sensor monitors fluid pressure, alerting users to potential blockages or issues. A retractable valve member enables easier cleaning and maintenance, minimizing contamination risk and improving reliability. Furthermore, a dynamic valve position adjustment system optimizes flow characteristics in response to changes in fluid flow rate, pressure, and viscosity.

Novelty and Inventive Step

The new inventive concept introduces a range of novel and non-obvious features that significantly improve the original high-flow, needleless connector. The self-cleaning mechanism, vortex-induced flow acceleration, integrated pressure sensor, retractable valve member, and dynamic valve position adjustment system collectively provide a unique and innovative solution that addresses the limitations of the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include variations in the self-cleaning mechanism, such as using ultrasonic cleaning or electrostatic charges. The vortex-induced flow acceleration mechanism could be replaced with other flow-enhancing technologies, such as micro-mixing or surface roughening. The integrated pressure sensor could be substituted with alternative sensing technologies, such as optical or capacitive sensors.

Potential Commercial Applications and Market

The enhanced needleless connector systems have significant commercial potential in the medical device industry, particularly in the fields of intravenous therapy, blood administration, and pharmaceutical delivery. The improved safety, efficiency, and reliability of these systems could lead to increased adoption and market share, with potential applications in hospitals, clinics, and home healthcare settings.

CPC Classifications

SectionClassGroup
A A61 A61M39/146
A A61 A61M39/26
A A61 A61M2039/1083
A A61 A61M2039/1088
A A61 A61M2039/267

Field of Art

Medical Device Engineering, specifically Intravenous (IV) Fluid Delivery Systems and Needleless Connectors, with expertise in fluid dynamics, valve mechanisms, and medical device design

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with advanced degree, 3-5 years experience in medical fluid transfer technologies, familiar with fluid dynamics, valve design, and infection control principles in medical devices

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable engineering improvements to the source patent's needleless connector design. The proposed modifications leverage known techniques in fluid dynamics, valve mechanics, and sensor integration that are standard problem-solving approaches in medical device engineering. The self-cleaning and flow optimization features represent logical extensions of the original connector's design principles, utilizing standard engineering methodologies to address inherent limitations in the original device.

Obvious Combinations & Variations

Source Patent Element
Internal valve member with specific structural configuration for fluid transfer
PTD Variation
Retractable valve member enabling easier cleaning and maintenance
Obviousness Reasoning
A PHOSITA would recognize that modifying a fixed valve to be retractable is a predictable design variation to improve cleanability, using known mechanical actuation techniques common in medical device engineering
Source Patent Element
Fluid transfer mechanism with specific mating structures
PTD Variation
Vortex-induced flow acceleration mechanism within internal chamber
Obviousness Reasoning
Implementing flow acceleration techniques is a standard fluid dynamics optimization approach that a PHOSITA would find obvious when seeking to improve fluid transfer efficiency in medical connectors
Source Patent Element
Injection port assembly with multiple structural components
PTD Variation
Integrated pressure sensor monitoring fluid pressure and potential blockages
Obviousness Reasoning
Adding sensor monitoring to medical fluid transfer devices is a known technique for improving safety and performance, representing a predictable enhancement using standard sensor integration methods
Source Patent Element
Needleless connector with internal valve configuration
PTD Variation
Dynamic valve position adjustment system responding to fluid flow characteristics
Obviousness Reasoning
Implementing adaptive valve positioning is an obvious solution for optimizing fluid transfer, utilizing standard control system engineering principles to improve device performance
Source Patent Element
Connector design focused on fluid transfer and contamination prevention
PTD Variation
Self-cleaning mechanism utilizing fluid flow to remove internal debris
Obviousness Reasoning
Developing self-cleaning mechanisms is a predictable engineering solution to contamination challenges, using the inherent fluid transfer properties of the device to improve its maintenance and safety
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857752 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations obvious and anticipated. The proposed modifications represent predictable engineering improvements utilizing standard techniques in medical device design, fluid dynamics, and sensor integration, thereby rendering subsequent claims of similar technical variations unpatentable under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,752
TitleHigh flow, needleless connector
Assignee(s)RyMed Technologies, LLC