Microneedle Devices for Specialized Environments

Publication ID: 24-11857343_0004_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Microneedle Devices for Specialized Environments,” Published Technical Disclosure No. 24-11857343_0004_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857343_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. 11,857,343.

Summary of the Inventive Concept

This inventive concept adapts microneedle fabrication and device implantation for specific, narrow markets or unique operational environments, including high-security needs, disaster relief, extreme weather conditions, remote resource-limited settings, and high-altitude environments.

Background and Problem Solved

The original patent disclosed a method of making a microneedle comprising a reversible engagement feature. However, the microneedle fabrication and device implantation technique had limitations in terms of adaptability to various environments and scenarios. The new inventive concept addresses these limitations by developing specialized microneedle devices that cater to specific operational environments, ensuring secure, reliable, and efficient implantation of implantable devices.

Detailed Description of the Inventive Concept

The inventive concept comprises a system and method for implanting an implantable device into a biological tissue in various specialized environments. The system includes a microneedle fabricated according to the original patent's method, further including features tailored to the specific environment. For instance, in a high-security environment, the microneedle includes a biometric authentication feature for secure implantation. In a disaster relief scenario, the method involves ablating a section of the outer membrane and inserting the implantable device through the ablated section using a microneedle with a reversible engagement feature. The inventive concept also encompasses a microneedle device with a waterproof coating for extreme weather conditions, a portable, battery-powered ablation device for remote, resource-limited settings, and a pressure-sensing feature for high-altitude environments.

Novelty and Inventive Step

The new inventive concept's novelty lies in its adaptation of the original microneedle fabrication and device implantation technique to specific, narrow markets or unique operational environments. The inventive step is the integration of specialized features, such as biometric authentication, ablation, waterproof coating, portable ablation devices, and pressure-sensing features, to ensure secure, reliable, and efficient implantation of implantable devices in these environments.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different materials, such as titanium or stainless steel, for the microneedle fabrication. Variations of the system could include the integration of additional features, such as temperature control or vibration reduction, to further enhance the implantation process.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in various industries, including medical devices, biotechnology, and disaster relief. The specialized microneedle devices can be marketed to organizations operating in high-security environments, such as government agencies or high-stakes research facilities, as well as to companies providing disaster relief services or operating in extreme weather conditions.

CPC Classifications

SectionClassGroup
A A61 A61B5/685
A A61 A61B5/1459
A A61 A61B5/1473
A A61 A61B5/6868
A A61 A61K41/0028
A A61 A61N1/0502
A A61 A61N1/0529
A A61 A61N1/0551
A A61 A61N5/0601
B B21 B21F45/008
A A61 A61B2562/12
A A61 A61N2005/0612
A A61 A61N2005/0651
B B23 B23K1/0008
B B23 B23K2101/32

Field of Art

Biomedical engineering and microsurgical device fabrication, with expertise in microneedle design, implantation techniques, and minimally invasive medical technologies

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device designer with advanced knowledge of microfabrication techniques, materials science, and surgical intervention methodologies, typically holding a PhD or equivalent professional experience in medical device engineering

Obviousness Rationale

A person having ordinary skill in the art would recognize that the source patent's microneedle fabrication method provides a fundamental platform for environmental and functional adaptations. The PTD's variations represent predictable extensions of the core microneedle technology by applying known engineering principles of customization and environmental adaptation to the base microneedle design. These modifications would be considered routine design optimization for a skilled practitioner seeking to expand the utility of microneedle devices across specialized contexts.

Obvious Combinations & Variations

Source Patent Element
Microneedle fabrication method using wire winding and brazing with reversible engagement feature
PTD Variation
Adding biometric authentication feature for secure implantation in high-security environments
Obviousness Reasoning
Integrating authentication mechanisms is a known technique in medical device design, representing a predictable solution for access control that a PHOSITA would find obvious when adapting the base microneedle technology
Source Patent Element
Wire-based microneedle with sharpening and etching capabilities
PTD Variation
Incorporating waterproof coating for extreme weather conditions
Obviousness Reasoning
Surface modification and protective coatings are standard engineering approaches for extending device functionality, which would be considered a routine design choice for a skilled practitioner
Source Patent Element
Microneedle with reversible engagement feature for tissue penetration
PTD Variation
Adding pressure-sensing feature for high-altitude environment implantation
Obviousness Reasoning
Integrating environmental sensing capabilities represents a predictable enhancement using known sensor technologies, which would be an obvious optimization for a PHOSITA seeking to improve device performance
Source Patent Element
Wire-based microneedle fabrication method
PTD Variation
Developing portable, battery-powered ablation device for resource-limited settings
Obviousness Reasoning
Miniaturization and portability of medical devices are well-established engineering goals, and adapting the microneedle design to include power and ablation capabilities would be considered a straightforward design evolution
Source Patent Element
Microneedle with wire winding and brazing technique
PTD Variation
Alternative material selections like titanium or stainless steel for fabrication
Obviousness Reasoning
Material substitution is a standard engineering practice, and selecting alternative biocompatible metals would be an obvious variation to a PHOSITA familiar with medical device material science
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857343 and the disclosed variations, a person having ordinary skill in the art would find the claimed innovations obvious through routine engineering adaptations. The published technical disclosure demonstrates that the microneedle device's core technological principles can be predictably extended across various specialized environments using known design methodologies, thereby rendering subsequent claims of novelty invalid under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,343
TitleMicroneedle fabrication and device implantation
Assignee(s)The Regents of the University of California