Enhanced Ocular Delivery Systems and Methods

Publication ID: 24-11857460_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Ocular Delivery Systems and Methods,” Published Technical Disclosure No. 24-11857460_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857460_0001_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

Improved ocular delivery systems and methods for accessing Schlemm's canal, delivering viscoelastic fluid compositions, and performing trabeculotomies, featuring advanced micro-robotic navigation, ultrasound-based sensing, customized fluid compositions, and real-time ocular pressure monitoring.

Background and Problem Solved

The original patent disclosed systems and methods for accessing Schlemm's canal, delivering fluid compositions, and performing trabeculotomies. However, these systems and methods had limitations, including the potential for tissue disruption and variability in fluid delivery. The new inventive concept addresses these limitations by introducing advanced technologies and features that improve the safety, efficacy, and customization of ocular delivery systems and methods.

Detailed Description of the Inventive Concept

The enhanced ocular delivery systems and methods comprise a micro-robotic component that navigates through Schlemm's canal to deliver a viscoelastic fluid composition, minimizing tissue disruption and adapting to the canal's geometry. The systems also feature an ultrasound-based sensing system to identify optimal sites for fluid delivery and tissue disruption, increasing the efficacy of the procedure. Additionally, the systems can deliver customized fluid compositions tailored to a patient's specific ocular anatomy, and provide real-time monitoring of ocular pressure during the procedure. The micro-robotic component can be designed to operate in tandem with the ultrasound-based sensing system, ensuring precise and controlled delivery of the fluid composition.

Novelty and Inventive Step

The new inventive concept introduces significant advancements over the original patent, including the use of micro-robotic navigation, ultrasound-based sensing, and customized fluid compositions. These features provide a substantial improvement in the safety, efficacy, and customization of ocular delivery systems and methods, making the new inventive concept novel and non-obvious compared to the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of other sensing modalities, such as optical coherence tomography (OCT) or fluorescence imaging, to guide the micro-robotic component. Additionally, the customized fluid compositions could be tailored to specific disease states or patient populations, and the real-time ocular pressure monitoring could be integrated with other diagnostic tools to provide a more comprehensive understanding of ocular health.

Potential Commercial Applications and Market

The enhanced ocular delivery systems and methods have significant commercial potential in the ophthalmology market, particularly in the treatment of glaucoma and other ocular diseases. The systems could be marketed to ophthalmologists, hospitals, and clinics, and could potentially disrupt the existing market for ocular delivery systems and methods.

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

Ophthalmic medical devices and surgical techniques, specifically focused on intraocular fluid delivery systems, trabeculotomy procedures, and precision medical instrumentation for ocular interventions

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device specialist with expertise in ophthalmological surgical technologies, advanced microfluidic systems, and minimally invasive surgical techniques, possessing knowledge of medical imaging, robotic surgical platforms, and fluid delivery mechanisms

Obviousness Rationale

A person having ordinary skill in the art would recognize that the PTD's proposed enhancements represent predictable technological extensions of the source patent's fundamental ocular delivery system. The micro-robotic navigation, ultrasound sensing, and customized fluid composition approaches are logical refinements that address known limitations in existing ocular surgical technologies. These variations represent incremental improvements using standard engineering techniques and readily available sensing and robotic technologies.

Obvious Combinations & Variations

Source Patent Element
Cannula-based fluid delivery system for accessing Schlemm's canal
PTD Variation
Micro-robotic component that adapts to canal geometry and minimizes tissue disruption
Obviousness Reasoning
Integrating robotic navigation is a predictable solution for improving precision in minimally invasive surgical techniques, representing a known approach to enhancing existing medical device performance
Source Patent Element
Fluid composition delivery mechanism
PTD Variation
Customized fluid compositions tailored to patient-specific ocular anatomy
Obviousness Reasoning
Personalized medical approaches are a standard design evolution, utilizing imaging data to optimize treatment parameters is a well-established technique in medical device development
Source Patent Element
Linear gear and linkage fluid delivery mechanism
PTD Variation
Ultrasound-based sensing system for identifying optimal fluid delivery sites
Obviousness Reasoning
Incorporating advanced imaging guidance into existing mechanical delivery systems represents a predictable technological improvement using known medical sensing technologies
Source Patent Element
Fluid delivery system with reservoir and elongate member
PTD Variation
Real-time ocular pressure monitoring integrated into fluid delivery system
Obviousness Reasoning
Adding sensor-based feedback mechanisms is a standard engineering approach to improving medical device performance and patient safety
Source Patent Element
Trabeculotomy method for managing aqueous humor drainage
PTD Variation
Therapeutic agent combined with viscoelastic agent for targeted delivery
Obviousness Reasoning
Combining diagnostic and therapeutic agents in a single delivery mechanism is a known technique for enhancing treatment efficacy in medical interventions
35 U.S.C. § 103 Summary: Based on a comprehensive analysis of US Patent 11857460 and the corresponding Published Technical Disclosure, a person having ordinary skill in the art would find the proposed variations obvious and lacking inventive step. The incremental technological improvements represent predictable extensions of existing ocular delivery system technologies, utilizing standard engineering techniques and known medical device design principles to enhance precision, customization, and procedural effectiveness.

Original Patent Information

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