Specialized Hydrogel Barrier Membranes for Niche Biomedical Applications

Publication ID: 24-11857701_0004_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Specialized Hydrogel Barrier Membranes for Niche Biomedical Applications,” Published Technical Disclosure No. 24-11857701_0004_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857701_0004_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 present inventive concept discloses novel, specialized hydrogel barrier membranes using alginate and hyaluronic acid, tailored for specific, high-demand biomedical applications, such as high-altitude surgery, disaster relief, extreme weather conditions, high-security environments, and niche medical uses.

Background and Problem Solved

The original patent disclosed a general anti-adhesive barrier membrane using alginate and hyaluronic acid for biomedical applications. However, the original invention did not address the unique challenges and requirements of specific, narrow markets or operational environments. This inventive concept solves the problem by adapting the hydrogel barrier membrane to meet the distinct needs of these specialized applications.

Detailed Description of the Inventive Concept

The inventive concept comprises a family of hydrogel barrier membranes, each optimized for a particular niche biomedical application. For example, the membrane for high-altitude surgery is optimized for low-oxygen conditions and high winds, while the membrane for disaster relief medical applications features a unique porosity structure that selectively inhibits fibroblast infiltration. The membranes are constructed using an interpenetrating, crosslinked network of alginate and hyaluronic acid, with specific ratios and proprietary additives tailored to the target application.

Novelty and Inventive Step

The new claims introduce novel, non-obvious adaptations of the original hydrogel barrier membrane, including optimized formulations and structures for specific, high-demand biomedical applications. These adaptations provide enhanced performance, durability, and safety in these unique operational environments.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include varying the ratio of alginate to hyaluronic acid, incorporating additional biocompatible polymers or additives, or modifying the membrane's porosity structure to suit different applications. Variations may also include using different crosslinking agents or methods to enhance the membrane's mechanical properties.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the biomedical industry, particularly in niche markets such as high-altitude surgery, disaster relief, and high-security medical applications. The customized hydrogel barrier membranes can provide enhanced safety, efficacy, and convenience in these specialized fields, addressing unmet needs and generating new revenue streams.

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 polymer engineering, specifically biopolymer hydrogel design for surgical and medical barrier applications, focusing on tissue-interfacing materials with anti-adhesion properties

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or materials scientist with expertise in polymer chemistry, hydrogel formulation, medical device design, and knowledge of biocompatible materials with advanced understanding of polysaccharide interactions and medical application optimization

Obviousness Rationale

A person having ordinary skill would recognize that the source patent's fundamental hydrogel barrier composition using alginate and hyaluronic acid provides a flexible technological platform that can be systematically adapted for specialized environments. The PTD's variations represent predictable engineering modifications that extend the core technological concept through routine optimization techniques familiar to polymer design specialists. These adaptations demonstrate standard design approaches for tailoring biomaterials to specific operational contexts using known compositional and structural adjustment strategies.

Obvious Combinations & Variations

Source Patent Element
Hydrogel film comprising hyaluronic acid and alginate with translucent, desiccated structure
PTD Variation
Optimizing membrane for high-altitude surgical environments with specific oxygen and wind resistance characteristics
Obviousness Reasoning
Predictable material modification using known polymer engineering techniques to adjust hydrogel performance parameters
Source Patent Element
Non-cytotoxic, negatively charged hydrophilic hydrogel layer
PTD Variation
Creating multilayered barriers with proprietary additives for high-security surgical environments
Obviousness Reasoning
Routine combination of known biocompatible materials using standard polymer network design principles
Source Patent Element
Uncrosslinked hyaluronic acid with controlled weight percentage
PTD Variation
Developing customized hydrogel barriers with selective porosity for inhibiting cellular infiltration
Obviousness Reasoning
Applying known crosslinking and structural modification techniques to achieve targeted biological interactions
Source Patent Element
Biopolymer hydrogel with polysaccharide composition
PTD Variation
Adapting membrane formulations for extreme environmental conditions like high temperature and humidity
Obviousness Reasoning
Systematic material engineering approach using established polymer science principles for environmental adaptation
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed in this publication would have been obvious to a person having ordinary skill in biomedical polymer engineering at the time of invention, as they represent predictable extensions of the foundational teachings in US Patent 11857701, utilizing routine optimization techniques within the established technological framework of hydrogel barrier membrane design.

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