Adaptive Anti-Adhesive Barrier Membranes for Specialized Biomedical Applications

Publication ID: 24-11857701_0009_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Adaptive Anti-Adhesive Barrier Membranes for Specialized Biomedical Applications,” Published Technical Disclosure No. 24-11857701_0009_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857701_0009_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. 11,857,701.

Summary of the Inventive Concept

The inventive concept adapts the original anti-adhesive barrier membrane using alginate and hyaluronic acid for specialized biomedical applications, such as high-security medical facilities, disaster relief, extreme weather conditions, remote medical environments, and high-altitude medical environments.

Background and Problem Solved

The original patent disclosed a non-toxic, anti-adhesion hydrogel barrier membrane using alginate and hyaluronic acid for biomedical applications. However, the original patent did not address the specific needs of specialized biomedical applications, such as high-security medical facilities, disaster relief, extreme weather conditions, remote medical environments, and high-altitude medical environments. The new inventive concept addresses these limitations by adapting the original barrier membrane for these specific applications.

Detailed Description of the Inventive Concept

The new inventive concept comprises a system or method for preparing a non-toxic, anti-adhesion hydrogel barrier membrane using alginate and hyaluronic acid, adapted for use in high-security medical facilities, disaster relief, extreme weather conditions, remote medical environments, and high-altitude medical environments. The barrier membrane is designed to withstand specific operational environments, such as extreme temperatures and humidity, and to provide a non-cytotoxic and biocompatible surface for biomedical applications. The new claims provide a detailed description of the components and operation of the adapted barrier membrane, including the use of uncrosslinked hyaluronic acid, collagen, and negatively charged and hydrophilic surfaces.

Novelty and Inventive Step

The new claims provide a novel and non-obvious adaptation of the original barrier membrane for specialized biomedical applications. The inventive step lies in the specific design and operation of the adapted barrier membrane, which addresses the unique needs of high-security medical facilities, disaster relief, extreme weather conditions, remote medical environments, and high-altitude medical environments.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different biocompatible materials, such as chitosan or dextran, or the incorporation of additional components, such as antimicrobial agents or growth factors. Variations of the inventive concept could include the adaptation of the barrier membrane for use in veterinary medicine or in industrial applications.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the biomedical industry, particularly in the areas of high-security medical facilities, disaster relief, extreme weather conditions, remote medical environments, and high-altitude medical environments. The target market includes medical device manufacturers, biomedical research institutions, and government agencies involved in disaster relief and emergency response.

CPC Classifications

SectionClassGroup
A A61 A61L31/041
A A61 A61K31/192
A A61 A61K31/195
A A61 A61L31/145
A A61 A61L31/148
A A61 A61L31/16
A A61 A61L2300/414
A A61 A61L2300/43
A A61 A61L2300/62

Field of Art

Biomedical materials engineering, specifically biopolymer hydrogel barrier membranes for medical applications, with expertise in polysaccharide-based biomaterials and tissue engineering

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or materials scientist with advanced degree, experience in polymer chemistry, knowledge of biomaterial design, familiar with medical device development and biocompatible material adaptations

Obviousness Rationale

A PHOSITA would recognize that the source patent's core hydrogel membrane technology provides a foundational platform for environmental and application-specific adaptations. The fundamental composition of alginate and hyaluronic acid remains consistent, with modifications representing predictable extensions of the original invention's technical principles. The disclosed variations represent routine engineering adaptations addressing specific use contexts while maintaining the core technical characteristics of the original anti-adhesive barrier membrane.

Obvious Combinations & Variations

Source Patent Element
Non-toxic hydrogel film comprising hyaluronic acid and alginate
PTD Variation
Adapting membrane for high-security, disaster relief, and extreme environment medical applications
Obviousness Reasoning
Predictable design modification using known material properties, representing standard engineering problem-solving for specialized environments
Source Patent Element
Uncrosslinked hyaluronic acid with no more than 33% dry weight composition
PTD Variation
Incorporating additional design parameters for remote and high-altitude medical environments
Obviousness Reasoning
Routine material science optimization using existing compositional framework, representing expected iterative design improvements
Source Patent Element
Negatively charged and hydrophilic surface characteristics
PTD Variation
Extending surface properties for specialized biomedical application contexts
Obviousness Reasoning
Predictable material science approach of leveraging existing surface chemistry for expanded functional requirements
Source Patent Element
Collagen-containing layered membrane structure
PTD Variation
Exploring alternative material combinations for diverse medical environment requirements
Obviousness Reasoning
Known technique of material substitution and combination within established biomaterial design principles
Source Patent Element
Biocompatible polysaccharide hydrogel system
PTD Variation
Proposing alternative polymer options like chitosan or dextran
Obviousness Reasoning
Standard materials engineering approach of exploring functionally equivalent biomaterial substitutions
35 U.S.C. § 103 Summary: Based on US Patent 11857701's disclosure of anti-adhesive barrier membranes, the present publication demonstrates that the claimed variations represent obvious extensions of the prior art through routine engineering modifications. A person having ordinary skill in the art would find the proposed adaptations predictable and within the established technological framework of the source patent, thus rendering subsequent claims obvious and non-patentable.

Original Patent Information

Patent NumberUS 11,857,701
TitleAnti-adhesive barrier membrane using alginate and hyaluronic acid for biomedical applications
Assignee(s)Board of Regents, The University of Texas System