Enhanced Implantable Cellular and Biotherapeutic Agent Delivery System

Publication ID: 24-11857672_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Implantable Cellular and Biotherapeutic Agent Delivery System,” Published Technical Disclosure No. 24-11857672_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857672_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. 11,857,672.

Summary of the Inventive Concept

An advanced implantable device for delivering cellular and biotherapeutic agents, featuring selectively permeable membranes, optimized surface patterns, and real-time permeability control for enhanced therapeutic efficacy.

Background and Problem Solved

The original patent disclosed a metallic, nanoporous device for encapsulating cellular and biotherapeutic agents. However, it had limitations in terms of surface area exposure, agent isolation, and real-time control over the diffusion of encapsulated factors. The new inventive concept addresses these limitations by introducing selectively permeable membranes, optimized surface patterns, and real-time permeability control, enabling more efficient and targeted delivery of therapeutic agents.

Detailed Description of the Inventive Concept

The enhanced implantable device comprises a metallic, nanoporous structure with a selectively permeable membrane, which is treated with a surface pattern to increase the surface area of exposure to an external environment. The device is configured to wholly isolate metabolically active cellular and biotherapeutic agents, promoting local or systemic diffusion of encapsulated factors. The device may also include a control unit that monitors the diffusion of encapsulated factors and adjusts the device's permeability in real-time to optimize therapeutic efficacy. Additionally, the device can be designed with a bicontinuous morphology, allowing for more efficient agent delivery and improved therapeutic outcomes.

Novelty and Inventive Step

The new inventive concept introduces the use of selectively permeable membranes, optimized surface patterns, and real-time permeability control, which are not present in the original patent. These features enable more efficient and targeted delivery of therapeutic agents, providing a significant improvement over the original invention.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include the use of different materials for the nanoporous structure, such as polymers or ceramics, or the incorporation of additional features, such as sensors or actuators, to further enhance the device's functionality. Variations of the device may also be designed for specific applications, such as delivering agents to specific tissues or organs.

Potential Commercial Applications and Market

The enhanced implantable device has significant commercial potential in the field of regenerative medicine, particularly in the treatment of damaged or degenerated tissues. The device's ability to deliver therapeutic agents in a targeted and controlled manner makes it an attractive solution for a range of applications, including tissue engineering, wound healing, and cancer treatment.

CPC Classifications

SectionClassGroup
A A61 A61K9/0024
A A61 A61F2/022
A A61 A61K31/337
A A61 A61K31/397
A A61 A61K31/436
A A61 A61K31/65
A A61 A61K31/7036
A A61 A61K35/28
A A61 A61K38/14
A A61 A61K38/1866
A A61 A61K38/22
A A61 A61K39/395
A A61 A61K47/02
A A61 A61M39/0247
A A61 A61M2039/027
A A61 A61M2039/0261
A A61 A61M2039/0276
A A61 A61M2205/04

Field of Art

Biomedical engineering, specifically implantable medical devices for cellular and therapeutic agent delivery, with expertise in nanoporous materials, surface engineering, and controlled drug release systems

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or materials scientist with advanced degrees, experience in medical device design, knowledge of nanoscale fabrication techniques, and understanding of drug delivery mechanisms and biocompatible materials

Obviousness Rationale

A person of ordinary skill would recognize that the PTD's variations represent predictable extensions of the source patent's core technology, involving standard engineering design choices and known techniques for improving implantable drug delivery systems. The modifications introduce incremental improvements that would be apparent to a skilled practitioner seeking to optimize cellular and biotherapeutic agent encapsulation and release. These variations demonstrate routine problem-solving within the established technological framework of nanoporous medical devices.

Obvious Combinations & Variations

Source Patent Element
Nanoscale through-porous structure with surface treatment pattern
PTD Variation
Selectively permeable membrane with optimized surface pattern to increase exposure area
Obviousness Reasoning
A PHOSITA would recognize that modifying surface treatments to enhance exposure and permeability is a standard optimization technique in nanoporous device design, representing a predictable variation with expected results
Source Patent Element
Implantable device for encapsulating cellular and biotherapeutic agents
PTD Variation
Adding a real-time control unit to monitor and adjust permeability dynamically
Obviousness Reasoning
Incorporating sensor and control technologies to modulate drug delivery is a known approach in biomedical engineering, representing an obvious enhancement to improve therapeutic precision
Source Patent Element
Metallic nanoporous device with isolated cellular agents
PTD Variation
Bicontinuous morphology design to improve agent delivery efficiency
Obviousness Reasoning
Exploring alternative structural configurations to optimize material performance is a routine design choice for a skilled practitioner seeking incremental improvements in drug delivery systems
Source Patent Element
Single-portion implantable device
PTD Variation
Multi-portion device capable of encapsulating different types of cellular and biotherapeutic agents
Obviousness Reasoning
Designing modular devices with compartmentalized storage represents a straightforward engineering solution for managing multiple therapeutic agents with distinct delivery requirements
Source Patent Element
Nanoporous metallic structure
PTD Variation
Alternative material options including polymers and ceramics for nanoporous structure
Obviousness Reasoning
Material substitution using known biocompatible alternatives is a standard design approach, representing an obvious variation to a PHOSITA familiar with medical device materials
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857672 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations obvious, as they represent predictable engineering modifications to known implantable cellular delivery systems. The disclosed innovations constitute routine problem-solving within the established technological domain, utilizing standard techniques for enhancing nanoporous medical device performance and therapeutic agent delivery mechanisms.

Original Patent Information

Patent NumberUS 11,857,672
TitleImplantable cellular and biotherapeutic agent delivery canister
Assignee(s)NanoVault Medical LLC