Enhanced Ultrasound-Enhanced Drug Delivery System

Publication ID: 24-11857459_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Ultrasound-Enhanced Drug Delivery System,” Published Technical Disclosure No. 24-11857459_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857459_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. 11,857,459.

Summary of the Inventive Concept

An improved system and method for ultrasound-enhanced delivery of drugs to intraocular spaces, featuring advancements in handheld devices, machine learning-based optimization, novel materials, and real-time tracking.

Background and Problem Solved

The original patent, 'System and method for ultrasound-enhanced delivery of drugs,' has limitations in terms of device complexity, user interface, and efficacy. The new inventive concept addresses these limitations by introducing a handheld, user-friendly device with integrated drug reservoir and real-time monitoring capabilities, as well as machine learning-based optimization of ultrasound parameters and novel ultrasound-transparent materials.

Detailed Description of the Inventive Concept

The enhanced system comprises a handheld ultrasound-generating device with an integrated drug reservoir and a user interface for real-time monitoring of drug delivery. The device is designed for ease of use and portability, allowing for more efficient and effective treatment of various ophthalmic diseases. The system also incorporates machine learning algorithms to optimize ultrasound parameters for enhanced drug delivery to target sites in intraocular spaces. Additionally, the drug applicator features a novel ultrasound-transparent material that minimizes attenuation of ultrasound waves, thereby increasing the efficacy of drug delivery. The system can be programmed to deliver multiple drugs to different target sites in an intraocular space, and real-time tracking of drug delivery is enabled through the use of ultrasound imaging and a contrast agent.

Novelty and Inventive Step

The new claims introduce several novel and non-obvious features, including the handheld, integrated device design, machine learning-based optimization of ultrasound parameters, and the use of novel ultrasound-transparent materials. These advancements provide significant improvements over the original patent, offering enhanced efficacy, ease of use, and real-time monitoring capabilities.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include variations in device design, such as wearable or implantable devices, or the use of different machine learning algorithms or optimization techniques. Additionally, the system could be adapted for use in other medical applications beyond ophthalmology.

Potential Commercial Applications and Market

The enhanced ultrasound-enhanced drug delivery system has significant commercial potential in the ophthalmic industry, with applications in the treatment of various diseases and conditions, including central retinal vein occlusion, branch retinal vein occlusion, and uveitis. The market for ophthalmic treatments is growing rapidly, driven by an aging population and increasing prevalence of eye diseases.

CPC Classifications

SectionClassGroup
A A61 A61F9/0008
A A61 A61M37/0092
A A61 A61F2250/0093

Field of Art

Ophthalmic drug delivery systems, specifically ultrasound-enhanced transscleral drug delivery technologies, requiring expertise in medical device design, ultrasound physics, pharmacological delivery mechanisms, and biomedical engineering

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or medical device specialist with advanced degrees in bioengineering or medical technology, possessing knowledge of ultrasound wave propagation, drug delivery mechanisms, and ophthalmological treatment protocols

Obviousness Rationale

A PHOSITA would recognize that the PTD's disclosed variations represent predictable technological extensions of the source patent's core ultrasound-enhanced drug delivery concept. The machine learning optimization, real-time tracking, and integrated device design are logical incremental improvements that leverage existing technological capabilities in medical device engineering. These variations demonstrate standard problem-solving approaches within the field of medical device innovation.

Obvious Combinations & Variations

Source Patent Element
Drug applicator with ultrasound transducer for intraocular drug delivery
PTD Variation
Handheld ultrasound-generating device with integrated drug reservoir
Obviousness Reasoning
Miniaturization and integration of medical devices is a known design approach, representing a predictable technological progression that would be obvious to optimize portability and user convenience
Source Patent Element
Ultrasound-enhanced drug delivery system
PTD Variation
Machine learning algorithms for optimizing ultrasound parameters
Obviousness Reasoning
Applying computational optimization techniques to medical device performance is a standard engineering approach, representing a predictable application of known machine learning techniques to improve treatment efficacy
Source Patent Element
Drug applicator with specific material considerations
PTD Variation
Ultrasound-transparent material to minimize wave attenuation
Obviousness Reasoning
Material selection to improve wave transmission is a routine engineering design choice that would be obvious to a PHOSITA seeking to enhance device performance
Source Patent Element
Single drug delivery mechanism
PTD Variation
Programmable controller for multiple drug delivery to different target sites
Obviousness Reasoning
Expanding single-drug delivery to multi-drug protocols represents a logical system enhancement using known control and programming techniques
Source Patent Element
Basic drug delivery system
PTD Variation
Real-time tracking using ultrasound imaging and contrast agent
Obviousness Reasoning
Incorporating real-time monitoring represents a standard technological improvement using known medical imaging and tracking techniques
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857459, a person having ordinary skill in the art would find the variations disclosed in this publication to represent obvious extensions of the prior art, utilizing standard engineering problem-solving techniques and predictable technological progressions in ultrasound-enhanced drug delivery systems.

Original Patent Information

Patent NumberUS 11,857,459
TitleSystem and method for ultrasound-enhanced delivery of drugs
Assignee(s)SONIKURE HOLDINGS LIMITED