Advanced Filter Assembly for Insufflation Systems with Enhanced Performance and Safety Features

Publication ID: 24-11857719_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Filter Assembly for Insufflation Systems with Enhanced Performance and Safety Features,” Published Technical Disclosure No. 24-11857719_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857719_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. 11,857,719.

Summary of the Inventive Concept

An improved filter assembly for insufflation systems, incorporating innovative features such as self-cleaning mechanisms, pressure sensors, temperature control systems, and moisture-sensing systems to enhance performance, safety, and efficiency.

Background and Problem Solved

The original filter assembly patent has limitations in terms of filter medium maintenance, gas pressure monitoring, and temperature control. The new inventive concept addresses these limitations by introducing advanced features that improve the overall functionality and reliability of the filter assembly in insufflation systems.

Detailed Description of the Inventive Concept

The advanced filter assembly comprises a filter medium operative to filter medical gases, and incorporates one or more of the following features: a self-cleaning mechanism for removing contaminants from the filter medium, a pressure sensor for monitoring gas pressure, a temperature control system for regulating the temperature of the filtered gases, and a moisture-sensing system for detecting humidity levels in the filtered gases. These features enhance the performance and safety of the filter assembly, ensuring reliable and efficient delivery of medical gases to patients.

Novelty and Inventive Step

The new claims introduce novel features that are not present in the original patent, including the self-cleaning mechanism, pressure sensor, temperature control system, and moisture-sensing system. These features provide a non-obvious solution to the limitations of the original patent, enhancing the overall functionality and reliability of the filter assembly.

Alternative Embodiments and Variations

Alternative embodiments of the advanced filter assembly may include variations in the design and implementation of the self-cleaning mechanism, pressure sensor, temperature control system, and moisture-sensing system. For example, the self-cleaning mechanism could be implemented using ultrasonic cleaning, chemical cleaning, or other methods. The pressure sensor could be replaced with a flow sensor or a pressure gauge. The temperature control system could be implemented using heating elements, cooling elements, or thermoelectric devices. The moisture-sensing system could be replaced with a humidity sensor or a dew point sensor.

Potential Commercial Applications and Market

The advanced filter assembly has significant commercial potential in the medical device industry, particularly in the field of insufflation systems. The innovative features of the filter assembly could be marketed as a premium product, offering enhanced performance, safety, and efficiency to medical professionals and patients. The target market includes hospitals, surgical centers, and medical device manufacturers.

CPC Classifications

SectionClassGroup
A A61 A61M13/003
A A61 A61M16/0875
A A61 A61M16/106
A A61 A61M16/1095
A A61 A61M16/161
A A61 A61M2202/0225
A A61 A61M2205/3327
A A61 A61M2205/3331
A A61 A61M2205/3334
A A61 A61M2205/3368
A A61 A61M2205/3569
A A61 A61M2205/3653
A A61 A61M2205/7527
A A61 A61M2205/7536

Field of Art

Medical device filtration systems, specifically insufflation gas filtration for surgical applications, requiring expertise in medical device design, fluid dynamics, filtration technologies, and surgical equipment engineering

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer with advanced degree, 3-5 years experience in medical device design, familiar with surgical insufflation systems, filtration technologies, and medical gas handling protocols

Obviousness Rationale

A PHOSITA would recognize that enhancing filter assemblies with monitoring and self-maintenance features represents a predictable technological progression in medical device design. The proposed variations address known limitations in existing insufflation filter systems by introducing intelligent monitoring and maintenance capabilities. These extensions represent logical engineering improvements that would be apparent to a skilled practitioner seeking to optimize medical gas filtration performance and patient safety.

Obvious Combinations & Variations

Source Patent Element
Filter assembly with inlet and outlet for medical gas filtration
PTD Variation
Adding pressure sensor to monitor gas flow characteristics
Obviousness Reasoning
Integrating pressure monitoring is a standard engineering approach for ensuring consistent gas delivery, representing a known technique for improving system reliability
Source Patent Element
Medical gas filtration system positioned between humidification apparatus and patient
PTD Variation
Implementing temperature control system to regulate filtered gas temperature
Obviousness Reasoning
Temperature management is a predictable solution for maintaining consistent gas conditions, addressing known thermal variability challenges in medical gas delivery
Source Patent Element
Filter medium for filtering medical gases
PTD Variation
Incorporating self-cleaning mechanism to remove accumulated contaminants
Obviousness Reasoning
Developing automated maintenance techniques is a standard engineering approach to extending filter performance and reducing manual intervention
Source Patent Element
Insufflation system filter assembly
PTD Variation
Adding moisture-sensing system to detect humidity levels
Obviousness Reasoning
Monitoring moisture represents a logical extension of existing filtration technologies, providing additional data for optimizing gas delivery parameters
Source Patent Element
Patient gas delivery conduit
PTD Variation
Integrating sensors and intelligent monitoring capabilities
Obviousness Reasoning
Implementing smart sensor technologies is a predictable evolution in medical device design, enabling more sophisticated performance tracking and diagnostic capabilities
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857719, a Person Having Ordinary Skill In The Art would find the technical variations disclosed herein to be obvious extensions of existing insufflation filter assembly technologies. The proposed modifications represent predictable engineering solutions that would be apparent to a skilled practitioner seeking to enhance medical gas filtration system performance through intelligent monitoring, maintenance, and environmental control techniques.

Original Patent Information

Patent NumberUS 11,857,719
TitleFilter assembly
Assignee(s)Fisher & Paykel Healthcare Limited