Multimodal Fluid Delivery Systems for Diverse Biological Applications

Publication ID: 24-11857460_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Multimodal Fluid Delivery Systems for Diverse Biological Applications,” Published Technical Disclosure No. 24-11857460_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857460_0007_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. 11,857,460.

Summary of the Inventive Concept

This inventive concept expands the core technology of ocular delivery systems to address a broad range of biological applications, including otology, respiratory, sinus, skin, and gastrointestinal conditions, by adapting the fluid delivery system to access and treat specific anatomical sites.

Background and Problem Solved

The original patent focused on ocular delivery systems for treating glaucoma. However, the underlying technology has broader potential. Current treatments for various biological conditions often involve invasive surgeries, lengthy recovery times, or ineffective pharmacological interventions. This inventive concept addresses these limitations by providing a minimally invasive, adaptable fluid delivery system that can be tailored to diverse biological applications.

Detailed Description of the Inventive Concept

The multimodal fluid delivery system consists of a cannula, reservoir, linear gear, and linkage. The system is adapted to access specific anatomical sites, such as the Eustachian tube, bronchioles, paranasal sinuses, sebaceous glands, or small intestine, and deliver targeted fluid compositions to facilitate drainage, reduce inflammation, or promote healing. The system's components are designed to be modular, allowing for customization and flexibility in addressing various biological conditions.

Novelty and Inventive Step

The new claims introduce a paradigm shift in applying the core technology to entirely new industries and fields, expanding the scope of the original patent. The inventive step lies in the recognition of the versatility of the fluid delivery system and its adaptability to diverse biological applications, which was not obvious from the original patent.

Alternative Embodiments and Variations

Alternative embodiments may include modifications to the cannula design, reservoir materials, or linear gear mechanisms to optimize performance in specific biological contexts. Variations may also include the use of different fluid compositions, such as antibacterial or anti-inflammatory agents, or the integration of sensors or imaging modalities to enhance treatment efficacy.

Potential Commercial Applications and Market

This inventive concept has significant commercial potential in various industries, including otology, respiratory, dermatology, and gastrointestinal healthcare. The adaptability of the fluid delivery system to diverse biological applications enables a broad market reach, with potential for partnerships with pharmaceutical companies, medical device manufacturers, and healthcare providers.

CPC Classifications

SectionClassGroup
A A61 A61F9/0008
A A61 A61F9/00781
A A61 A61M5/002
A A61 A61M5/158
A A61 A61M5/3286
A A61 A61M5/3291
A A61 A61M2005/1585
A A61 A61M2210/0612

Field of Art

Medical device engineering, specifically minimally invasive fluid delivery systems for targeted anatomical interventions, with expertise in mechanical design, fluid mechanics, and medical device adaptation across multiple biological domains

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer with advanced degree, experience in medical device design, understanding of fluid delivery mechanisms, mechanical actuation systems, and cross-disciplinary medical technology adaptation

Obviousness Rationale

A PHOSITA would recognize the fundamental fluid delivery system's core mechanical principles are universally applicable across different anatomical contexts. The modular design of the cannula, linear gear, and reservoir system provides a flexible platform for adapting to various biological interventions. The technical variations disclosed represent predictable extensions of the original ocular delivery system's core mechanical and functional principles.

Obvious Combinations & Variations

Source Patent Element
Cannula-based fluid delivery system with linear gear and reservoir for accessing Schlemm's canal
PTD Variation
Adapting the same mechanical system to access Eustachian tube, bronchioles, and other anatomical sites
Obviousness Reasoning
Known technique of modifying medical device geometries for different anatomical access points, with predictable mechanical scaling and adaptation
Source Patent Element
Fluid composition delivery mechanism for eye drainage
PTD Variation
Delivering targeted fluid compositions for drainage in respiratory, ear, and gastrointestinal contexts
Obviousness Reasoning
Predictable result of applying known fluid delivery principles to alternative biological systems with similar drainage requirements
Source Patent Element
Mechanical linkage system for controlled fluid delivery
PTD Variation
Modular design allowing customization of cannula, reservoir, and linear gear for different medical applications
Obviousness Reasoning
Design choice enabled by understanding of standardized medical device engineering principles and interchangeable component design
Source Patent Element
Precise mechanical actuation of elongate member within cannula
PTD Variation
Adapting actuation mechanism for different anatomical access and fluid delivery requirements
Obviousness Reasoning
Finite set of known mechanical solutions for controlled fluid delivery across different biological contexts
Source Patent Element
Fluid composition for disrupting biological barriers
PTD Variation
Developing specialized fluid compositions for different medical interventions
Obviousness Reasoning
Routine optimization of fluid formulations for specific medical applications using known pharmaceutical and engineering techniques
35 U.S.C. § 103 Summary: Based on US Patent 11857460's disclosure of a fluid delivery system with mechanical actuation and targeted anatomical intervention, the present publication demonstrates that a Person Having Ordinary Skill In The Art would find the disclosed multimodal fluid delivery system variations obvious and predictable extensions of the prior art, thereby rendering potential derivative claims non-patentable under 35 U.S.C. ยง 103.

Original Patent Information

Patent NumberUS 11,857,460
TitleOcular delivery systems and methods
Assignee(s)Sight Sciences, Inc.