Published Technical Disclosure Archive

Advanced Immunoisolation Transplant Chamber Technology

Publication ID: 24-11856946_0004_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_0004_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856946_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. 11,856,946.

Background and Problem Solved

The original patent disclosed a chamber for transplantation with a membrane for immunoisolation, but it did not address the specific challenges of operating in unique operational environments. This invention solves the problem by providing specialized chambers that can operate effectively in these environments, ensuring the success of transplantation procedures.

Novelty and Inventive Step

The new claims provide a novel and non-obvious solution by adapting the original chamber for transplantation to operate in unique operational environments, which was not addressed in the original patent. The inventive step lies in the specific design features and components added to the chamber to enable its operation in these environments.

Alternative Embodiments and Variations

Alternative embodiments may include different types of secure access ports, renewable energy sources, thermal insulation materials, nutrient supply systems, communication devices, pressure-resistant materials, and gas exchange systems. Variations may also include different sizes and shapes of the chamber, as well as different types of membranes for immunoisolation.

Potential Commercial Applications and Market

The invention has significant commercial potential in the fields of organ transplantation, tissue engineering, and regenerative medicine, particularly in areas with high demand for specialized transplantation solutions, such as military, disaster relief, and remote or austere environments.

CPC Classifications

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

Field of Art

Biomedical engineering, specifically transplantation technologies, immunoisolation membrane design, and biological constituent preservation systems

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device specialist with expertise in cell transplantation, membrane technologies, and biocompatible encapsulation techniques, holding at least a master's degree with 3-5 years of specialized experience in medical device design

Obviousness Rationale

A PHOSITA would recognize that the source patent's fundamental immunoisolation chamber design provides a flexible technological platform that can be readily adapted to various environmental and operational contexts. The PTD's variations represent predictable extensions of the core transplantation chamber concept by adding supplementary functional elements that address specific use case requirements. These modifications represent standard engineering problem-solving approaches within biomedical device design.

Obvious Combinations & Variations

Source Patent Element
Membrane for immunoisolation with porous polymer construction
PTD Variation
Adding secure access ports and nutrient supply systems to the chamber
Obviousness Reasoning
Integrating controlled access and nutrient management is a predictable design optimization for maintaining biological constituent viability, representing a known technique in biomedical engineering
Source Patent Element
Chamber with defined interior cross-sectional area (4-200 cm2)
PTD Variation
Developing pressure-resistant and thermally-insulated chamber variants
Obviousness Reasoning
Adapting chamber materials and structural characteristics to extreme environmental conditions represents a standard engineering design choice with finite, foreseeable solution approaches
Source Patent Element
Basic transplantation chamber with immunoisolation membrane
PTD Variation
Incorporating renewable energy sources and communication monitoring systems
Obviousness Reasoning
Adding power and monitoring capabilities is a logical technological progression for enhancing device functionality, utilizing well-established engineering integration techniques
Source Patent Element
Membrane boundary defining interior and exterior spaces
PTD Variation
Creating specialized chambers for disaster relief and remote environment applications
Obviousness Reasoning
Repurposing core technological principles for specific contextual requirements represents a standard problem-solving approach in medical device engineering
Source Patent Element
Selective permeability membrane design
PTD Variation
Implementing gas exchange systems for maintaining optimal oxygen levels
Obviousness Reasoning
Enhancing membrane functionality through controlled gas management is a predictable technical evolution consistent with established biomedical engineering practices
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 variations disclosed herein to be obvious extensions of the fundamental transplantation chamber technology. The proposed modifications represent predictable technological adaptations that would be readily conceived by a skilled practitioner without requiring inventive insight, thus rendering potential derivative claims obvious under 35 U.S.C. ยง 103.

Original Patent Information

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