Published Technical Disclosure Archive

Advanced Immunoisolation Chamber for Transplantation Tech

Publication ID: 24-11856946_0001_PTD
Published: October 26, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Immunoisolation Chamber for Transplantation Tech,” Published Technical Disclosure No. 24-11856946_0001_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856946_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. 11,856,946.

Background and Problem Solved

The original patent for a chamber for transplantation with a membrane for immunoisolation has limitations in terms of efficiency, safety, and effectiveness. The new invention addresses these limitations by introducing advanced features and functionalities to improve the transplantation process.

Novelty and Inventive Step

The new invention's advanced features, such as the selectively permeable membrane, anti-inflammatory agent treatment, variable permeability, and built-in sensor, provide a significant improvement over the original patent. These features address the limitations of the original patent and provide a more efficient, safe, and effective transplantation process.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include different membrane materials, shapes, and sizes, as well as varying levels of permeability and sensor integration. Variations could also include different types of biological constituents, such as cells, tissues, or organs, and different methods of transplantation.

Potential Commercial Applications and Market

The enhanced chamber for transplantation has significant commercial potential in the fields of regenerative medicine, organ transplantation, and tissue engineering. The invention could be marketed to hospitals, research institutions, and biotechnology companies, providing a more efficient, safe, and effective transplantation process.

CPC Classifications

SectionClassGroup
A A01 A01N1/0231
B B01 B01D63/089
A A61 A61B2017/00969

Field of Art

Biomedical engineering, specifically immunoisolation technologies for cell and tissue transplantation, involving membrane design, immunological barrier creation, and medical device engineering

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or bioengineering researcher with expertise in membrane technologies, immunology, medical device design, and transplantation techniques, holding at least a master's degree with practical experience in developing selective permeability membranes

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable engineering modifications to the source patent's core immunoisolation membrane technology. The disclosed enhancements like variable permeability, anti-inflammatory treatment, and integrated sensing represent standard design optimization strategies within membrane transplantation technologies. These variations would be considered routine problem-solving approaches for improving immunoisolation effectiveness and transplantation safety.

Obvious Combinations & Variations

Source Patent Element
Membrane for immunoisolation containing a polymer with selective permeability
PTD Variation
Adding anti-inflammatory agent treatment to the membrane surface
Obviousness Reasoning
Known surface modification technique to reduce immune response, representing a predictable solution to enhance membrane performance using standard biomedical engineering approaches
Source Patent Element
Chamber with fixed membrane permeability design
PTD Variation
Implementing variable permeability membrane responsive to immune system changes
Obviousness Reasoning
Represents a logical engineering extension using adaptive material design principles, solving a known limitation in static membrane technologies
Source Patent Element
Transplantation chamber with immunoisolation membrane
PTD Variation
Integrating real-time immune response monitoring sensor within membrane structure
Obviousness Reasoning
Applying standard medical device sensor integration techniques to provide diagnostic feedback, representing an obvious improvement in transplantation monitoring capabilities
Source Patent Element
Polymer-based porous membrane for cell/tissue isolation
PTD Variation
Developing membrane with configurable pore sizes and selective permeability
Obviousness Reasoning
Demonstrates routine materials engineering approach of tuning membrane characteristics through established fabrication techniques
Source Patent Element
Basic immunoisolation chamber design
PTD Variation
Adding antimicrobial coating to prevent potential infection risks
Obviousness Reasoning
Represents a standard prophylactic design modification using well-known surface treatment technologies in medical device engineering
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11856946, a person having ordinary skill in the art would find the claimed variations in the present publication to be obvious extensions of existing immunoisolation membrane technologies. The disclosed modifications represent predictable engineering solutions that would be apparent to a skilled practitioner, thereby rendering potential derivative claims non-patentable under standard obviousness analysis.

Original Patent Information

Patent NumberUS 11,856,946
TitleChamber for transplantation and device for transplantation
Assignee(s)FUJI ELECTRIC CO., LTD.