Published Technical Disclosure Archive

Advanced Immunoisolation Transplant Chamber Technology

Publication ID: 24-11856946_0009_PTD
Published: October 26, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Advanced Immunoisolation Transplant Chamber Technology,” Published Technical Disclosure No. 24-11856946_0009_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856946_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. 11,856,946.

Background and Problem Solved

The original patent disclosed a chamber for transplantation with a membrane for immunoisolation. However, the original invention did not address the challenges of transplanting biological constituents in extreme environments. The new invention solves this problem by providing specialized chambers for transplantation that can operate effectively in these environments, ensuring the success of transplantation procedures.

Novelty and Inventive Step

The new invention is novel and non-obvious in its adaptation of the original chamber for transplantation to specific, narrow markets or unique operational environments. The inventive step lies in the identification of the need for specialized chambers for transplantation and the development of unique solutions to address these needs.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include specialized chambers for transplantation in other extreme environments, such as high-radiation or high-vibration environments. Variations of the invention could also include different types of membranes for immunoisolation or different power sources for the system.

Potential Commercial Applications and Market

The invention has significant commercial potential in the fields of transplantation, biotechnology, and healthcare. The target markets include hospitals, research institutions, and biotechnology companies operating in extreme environments or serving underserved areas.

CPC Classifications

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

Field of Art

Biomedical engineering focusing on transplantation technologies, immunoisolation membranes, and biological containment systems with expertise in membrane design, material science, and medical device engineering

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with advanced degree, working knowledge of membrane technologies, transplantation techniques, and experience designing specialized medical containment systems

Obviousness Rationale

A PHOSITA would recognize that the source patent's fundamental immunoisolation chamber design provides a flexible template for environmental adaptations. The core membrane technology can be systematically modified to address specific operational constraints by adjusting material properties, permeability, and structural characteristics. These variations represent predictable engineering solutions within the established technological framework of the original transplantation chamber patent.

Obvious Combinations & Variations

Source Patent Element
Membrane for immunoisolation containing a polymer with selective permeability
PTD Variation
Enhanced oxygen permeability membrane for high-altitude environments
Obviousness Reasoning
Modifying membrane polymer composition to optimize gas exchange is a standard engineering approach with predictable results in membrane design
Source Patent Element
Chamber with defined interior space dimensions (4-200 cm2)
PTD Variation
Specialized chamber configurations for disaster relief and remote medical scenarios
Obviousness Reasoning
Adapting standard chamber dimensions to specific use cases represents routine design optimization within known parameter ranges
Source Patent Element
Membrane boundary between interior and exterior spaces
PTD Variation
Tamper-evident and contamination-resistant membrane designs
Obviousness Reasoning
Incorporating additional protective features into existing membrane structures is a predictable engineering solution for enhancing device security
Source Patent Element
Porous polymer membrane for immunoisolation
PTD Variation
Thermal insulation properties added to membrane for extreme environment use
Obviousness Reasoning
Selecting and modifying polymer compositions to introduce thermal resistance represents a standard materials engineering approach
35 U.S.C. § 103 Summary: Based on US Patent 11856946's fundamental transplantation chamber design, the present publication demonstrates that a Person Having Ordinary Skill In The Art would find the disclosed environmental and functional variations obvious through routine engineering modifications. The systematic adaptation of immunoisolation membrane technologies to specific use cases represents predictable technological extensions within the established conceptual framework of the source patent.

Original Patent Information

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