Enhanced Fluid Control Devices for Reduced Contamination in Bodily Fluid Sampling

Publication ID: 24-11857321_0001_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Fluid Control Devices for Reduced Contamination in Bodily Fluid Sampling,” Published Technical Disclosure No. 24-11857321_0001_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857321_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. 11,857,321.

Summary of the Inventive Concept

An innovative fluid control device with dynamically adjustable flow paths, integrated sensors, and modular designs to minimize contaminants in bodily fluid samples, enhancing the efficiency and safety of sampling procedures.

Background and Problem Solved

The original patent, 'Fluid control devices and methods of using the same', addresses the issue of contaminants in bodily fluid samples. However, the existing design has limitations in terms of fluid flow rates, turbulence-induced contamination, and adaptability to different sample types. The new inventive concept overcomes these limitations by introducing dynamically adjustable flow paths, integrated sensors, and modular designs to reduce contaminants and improve sampling efficiency.

Detailed Description of the Inventive Concept

The enhanced fluid control device features a sequestration chamber with a dynamically adjustable flow path, allowing for optimized fluid flow rates and minimized turbulence-induced contamination. The device also incorporates an integrated sensor to detect and quantify contaminants in the initial volume of bodily fluid, enabling the controller to adjust the flow path accordingly. Additionally, the device features a modular, interchangeable sequestration chamber to accommodate different types of bodily fluid samples and contaminants. The device can be used in various methods, including diverting an initial volume of bodily fluid into the sequestration chamber and then using a secondary flow path to channel a subsequent volume of bodily fluid, substantially free from contaminants, to a collection device.

Novelty and Inventive Step

The new claims introduce novel features such as dynamically adjustable flow paths, integrated sensors, and modular designs, which are not present in the original patent. These features provide a significant improvement in reducing contaminants and improving sampling efficiency, making the new inventive concept non-obvious and innovative compared to the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include using different materials or coatings for the sequestration chamber, such as hydrophobic coatings to minimize microbial adhesion and biofilm formation. Variations of the device could also include different sensor types or arrangements, or different modular designs to accommodate specific sample types or contaminants.

Potential Commercial Applications and Market

The enhanced fluid control device has significant commercial potential in the healthcare industry, particularly in the fields of diagnostic testing, blood sampling, and medical research. The device's ability to reduce contaminants and improve sampling efficiency could lead to increased adoption and revenue growth in these markets.

Field of Art

Medical device engineering, specifically bodily fluid sampling technologies with a focus on contamination reduction techniques in clinical diagnostics and sample collection systems

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with expertise in fluid control systems, microbiological sampling techniques, and knowledge of medical device design principles with 3-5 years of professional experience

Obviousness Rationale

A person of ordinary skill would recognize that the PTD's variations represent predictable engineering improvements to the source patent's fluid control device. The core functional elements of fluid diversion and contamination reduction remain consistent, with the PTD introducing incremental design modifications that would be apparent to a skilled practitioner seeking to optimize bodily fluid sampling technologies.

Obvious Combinations & Variations

Source Patent Element
Housing forming a sequestration chamber with inlet and outlet configurations for bodily fluid sampling
PTD Variation
Adding an integrated sensor to detect contaminants within the sequestration chamber
Obviousness Reasoning
Incorporating sensors for fluid quality monitoring is a known technique in medical device design, representing a predictable enhancement to existing fluid control systems
Source Patent Element
Flow controller with deformable portions for managing fluid movement
PTD Variation
Implementing dynamically adjustable flow paths to optimize fluid flow rates
Obviousness Reasoning
Modifying flow control mechanisms to reduce turbulence is a standard design optimization approach for fluid handling devices
Source Patent Element
Apparatus for procuring bodily fluid samples with reduced contamination
PTD Variation
Adding a modular, interchangeable sequestration chamber design
Obviousness Reasoning
Designing modular medical devices to accommodate different sample types is a common engineering approach with predictable results in medical technology
Source Patent Element
Initial volume of bodily fluid isolation method
PTD Variation
Incorporating hydrophobic coatings to minimize microbial adhesion
Obviousness Reasoning
Surface modification techniques to reduce microbial contamination are well-known in medical device engineering and represent a finite set of predictable solutions
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857321 and the disclosed technical variations, a person of ordinary skill in the art would find the claimed innovations obvious and therefore unpatentable. The incremental design modifications represent predictable engineering solutions within the established technological framework of bodily fluid sampling devices, lacking the requisite non-obviousness for patent protection.

Original Patent Information

Patent NumberUS 11,857,321
TitleFluid control devices and methods of using the same
Assignee(s)Magnolia Medical Technologies, Inc.