Enhanced Fluid Sensor System for Real-time Fluid Property Monitoring

Publication ID: 24-11857760_0006_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Fluid Sensor System for Real-time Fluid Property Monitoring,” Published Technical Disclosure No. 24-11857760_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857760_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. 11,857,760.

Summary of the Inventive Concept

An advanced fluid sensor system that integrates a non-invasive ultrasonic transmitter, a pressure sensor, and a temperature sensor to provide real-time monitoring of fluid properties, enabling accurate detection of air bubbles, occlusions, and other anomalies in fluid delivery conduits.

Background and Problem Solved

The original fluid sensor patent, while effective in certain applications, has limitations in accurately detecting fluid properties, particularly in the presence of air bubbles or occlusions. The new inventive concept addresses these limitations by incorporating a temperature sensor and advanced signal processing, enabling real-time monitoring of fluid properties and ensuring safer, more efficient fluid delivery.

Detailed Description of the Inventive Concept

The enhanced fluid sensor system comprises a compact, low-power ultrasonic transmitter that emits signals through the fluid delivery conduit, a pressure sensor that detects pressure changes, and a temperature sensor that detects temperature changes within the conduit. The system further includes a microcontroller that processes the pressure sensor output signal and generates an alert signal in response to detecting an occlusion or air bubble. The system can be integrated with a pump and a controller, featuring a user interface that displays real-time fluid properties and alerts the user to potential issues.

Novelty and Inventive Step

The new inventive concept introduces a temperature sensor to detect temperature changes, enabling accurate monitoring of fluid properties. Additionally, the system's advanced signal processing and microcontroller-based alert generation provide a non-obvious solution to the limitations of the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different types of sensors, such as optical or acoustic sensors, or the integration of machine learning algorithms to improve the accuracy of fluid property detection. Variations of the system could be designed for specific industries, such as medical or industrial applications.

Potential Commercial Applications and Market

The enhanced fluid sensor system has significant commercial potential in the medical and industrial industries, where accurate fluid property monitoring is critical. The system could be integrated into infusion pumps, dialysis machines, and other medical devices, as well as industrial processes, such as chemical processing and oil refining.

CPC Classifications

SectionClassGroup
A A61 A61M5/16854
A A61 A61M5/365
A A61 A61M39/08
G G01 G01N29/02
G G01 G01N29/222
A A61 A61M2005/16863
A A61 A61M2205/332
A A61 A61M2205/3331

Field of Art

Medical device engineering, specifically fluid sensing and monitoring systems for medical fluid delivery, involving ultrasonic sensing, pressure detection, and medical instrumentation

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device design professional with expertise in sensor integration, signal processing, fluid dynamics, and medical instrumentation, typically holding a master's degree or equivalent professional experience in biomedical engineering

Obviousness Rationale

A PHOSITA would recognize that adding a temperature sensor to an existing ultrasonic and pressure-based fluid sensing system represents a predictable enhancement to improve diagnostic capabilities. The integration of additional sensing modalities to provide more comprehensive fluid property monitoring is a well-established design approach in medical sensor systems. The proposed variations represent incremental improvements that would be obvious to a skilled practitioner seeking to enhance fluid sensing accuracy and reliability.

Obvious Combinations & Variations

Source Patent Element
Ultrasonic transmitter and pressure sensor configured to detect fluid properties in a delivery conduit
PTD Variation
Adding a temperature sensor to provide additional fluid property monitoring
Obviousness Reasoning
Combining multiple sensor types to improve diagnostic resolution is a known technique in medical sensing, with predictable results of enhanced monitoring capabilities
Source Patent Element
Fluid sensor with gap for receiving fluid delivery conduit
PTD Variation
Integrating a microcontroller to process sensor signals and generate alert signals
Obviousness Reasoning
Signal processing and automated alert generation are standard design choices for improving sensor system functionality, representing an obvious extension of existing sensor technologies
Source Patent Element
Ultrasonic signal transmission through fluid delivery conduit
PTD Variation
Dynamically adjusting ultrasonic signal frequency based on detected temperature changes
Obviousness Reasoning
Adaptive signal processing techniques are well-known in sensor design, with temperature compensation being a predictable method for improving measurement accuracy
Source Patent Element
Fluid sensor for detecting conduit properties
PTD Variation
Adding a user interface to display real-time fluid properties and system alerts
Obviousness Reasoning
User interface integration for medical monitoring systems is a standard design approach, representing an obvious improvement to enhance device usability
Source Patent Element
Pressure and ultrasonic-based fluid sensing
PTD Variation
Implementing calibration method using reference fluid and signal adjustment
Obviousness Reasoning
Sensor calibration techniques are fundamental to measurement science, representing a predictable and obvious approach to improving measurement precision
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed herein would have been obvious to a person having ordinary skill in the art at the time of the invention, as taught by US Patent 11857760. The incremental enhancements to fluid sensing technology, including temperature sensing, signal processing, and user interface integration, represent predictable variations that would be readily conceived by a skilled practitioner seeking to improve medical fluid monitoring systems.

Original Patent Information

Patent NumberUS 11,857,760
TitleFluid sensor
Assignee(s)HONEYWELL INTERNATIONAL INC.