Published Technical Disclosure Archive

Advanced Immunoisolation Chamber for Cell Transplantation

Publication ID: 24-11856946_0006_PTD
Published: October 26, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Immunoisolation Chamber for Cell Transplantation,” Published Technical Disclosure No. 24-11856946_0006_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856946_0006_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, 'Chamber for transplantation and device for transplantation', described a method for transplanting biological constituents using a chamber with a membrane for immunoisolation. However, this invention had limitations in reducing immune reactions and maintaining optimal conditions for cell growth. The new invention addresses these limitations by incorporating an anti-inflammatory agent into the membrane and adding a sensor and control unit to monitor and adjust the environment inside the chamber.

Novelty and Inventive Step

The new invention introduces several novel features, including the treatment of the membrane with an anti-inflammatory agent, the integration of a sensor and control unit, and the optional inclusion of a temperature control system. These features provide a significant improvement over the original patent, enabling more effective transplantation and better outcomes for recipients.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include different types of membranes or anti-inflammatory agents, or the use of additional sensors or control units to monitor and adjust other environmental factors. The system could also be adapted for use with different types of biological constituents or for transplantation into different parts of the body.

Potential Commercial Applications and Market

The improved chamber for transplantation and device for transplantation have significant commercial potential in the field of regenerative medicine and organ transplantation. The invention could be marketed to hospitals, research institutions, and biotechnology companies, and could potentially revolutionize the field of transplantation by enabling more effective and successful transplants.

CPC Classifications

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

Field of Art

Biomedical engineering focused on cell transplantation, immunoisolation technologies, and medical device design, with expertise in membrane fabrication, cell encapsulation, and transplantation techniques

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or bioengineering researcher with advanced degree, experience in cell transplantation methods, knowledge of membrane technologies, and understanding of immunological principles in medical device design

Obviousness Rationale

A person having ordinary skill would recognize that the PTD's variations represent predictable engineering improvements to the source patent's transplantation chamber concept. The proposed modifications like anti-inflammatory membrane treatment, sensor integration, and temperature control are logical extensions of existing immunoisolation technology. These variations address known challenges in cell transplantation by applying standard bioengineering techniques to enhance the original invention's functionality.

Obvious Combinations & Variations

Source Patent Element
Membrane for immunoisolation containing a polymer
PTD Variation
Membrane treated with anti-inflammatory agent to reduce immune reactions
Obviousness Reasoning
Known technique of modifying membrane surfaces to improve biocompatibility, representing a predictable solution to reduce immune response in transplantation technologies
Source Patent Element
Chamber for transplantation with defined interior space
PTD Variation
Integrated sensor and control unit to monitor biological constituent conditions
Obviousness Reasoning
Standard design improvement using well-established monitoring technologies to enhance transplantation chamber performance, representing an obvious enhancement to existing medical device design
Source Patent Element
Method of enclosing biological constituent in transplantation chamber
PTD Variation
Applying gentle vibration to promote cell growth and differentiation
Obviousness Reasoning
Recognized technique in cell biology for stimulating cellular processes, representing a finite and predictable method of improving cell culture conditions within a transplantation environment
Source Patent Element
Transplantation chamber with membrane boundary
PTD Variation
Integrated temperature control system maintaining 32°C to 40°C range
Obviousness Reasoning
Well-known approach in biomedical engineering to create optimal environmental conditions for cell survival, representing a standard design choice for improving transplantation technologies
Source Patent Element
Basic transplantation chamber structure
PTD Variation
System including nutrient supply and waste removal devices with sterile connections
Obviousness Reasoning
Logical extension of transplantation chamber design using established bioengineering principles for maintaining cellular environments, representing an obvious improvement to support long-term cell viability
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 modifications of the prior art, rendering potential claims directed to these technical improvements unpatentable under 35 U.S.C. § 103. The proposed innovations represent predictable engineering solutions that would be apparent to a skilled practitioner seeking to enhance transplantation chamber technologies.

Original Patent Information

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