Enhanced Positron Imaging Tomography Imaging Agent Compositions and Methods for Bacterial Infection Diagnosis and Treatment

Publication ID: 24-11857352_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Positron Imaging Tomography Imaging Agent Compositions and Methods for Bacterial Infection Diagnosis and Treatment,” Published Technical Disclosure No. 24-11857352_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857352_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. 11,857,352.

Summary of the Inventive Concept

The present inventive concept relates to novel positron imaging tomography (PET) imaging agent compositions and methods that enhance the accuracy and efficiency of bacterial infection diagnosis and treatment. These compositions and methods utilize a dynamically adjustable ratio of 4-amino-2-[18F]-fluorobenzoic acid to 4-amino-2-[19F]-fluorobenzoic acid, allowing for real-time optimization of treatment efficacy and reduced radiation exposure to patients.

Background and Problem Solved

The original patent disclosed a PET imaging agent composition for bacterial infection diagnosis, but it had limitations in terms of treatment efficacy and radiation exposure. The present inventive concept addresses these limitations by introducing a novel bacterial infection detection module, dynamically adjustable ratio of 4-amino-2-[18F]-fluorobenzoic acid to 4-amino-2-[19F]-fluorobenzoic acid, and real-time optimization of treatment efficacy, thereby providing a more efficient and safer diagnosis and treatment approach.

Detailed Description of the Inventive Concept

The inventive concept comprises a novel PET imaging agent composition consisting of the compound having the structure:, or a salt of the compound; 4-amino-2-[19F]-fluorobenzoic acid or a salt of 4-amino-2-[19F]-fluorobenzoic acid; and at least one acceptable carrier. The composition is formulated to reduce radiation exposure to patients by at least 20%. The inventive concept also includes a system for monitoring bacterial infection treatment efficacy, which provides real-time feedback on treatment progress. Furthermore, the inventive concept encompasses a method for optimizing the ratio of 4-amino-2-[18F]-fluorobenzoic acid to 4-amino-2-[19F]-fluorobenzoic acid, comprising the steps of determining the bacterial infection type, selecting a predetermined ratio range based on the infection type, and adjusting the ratio within the selected range to optimize treatment efficacy.

Novelty and Inventive Step

The present inventive concept is novel and non-obvious in that it introduces a dynamically adjustable ratio of 4-amino-2-[18F]-fluorobenzoic acid to 4-amino-2-[19F]-fluorobenzoic acid, which allows for real-time optimization of treatment efficacy and reduced radiation exposure to patients. This is a significant improvement over the original patent, which did not provide for such dynamic adjustment.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include the use of different carrier materials, varying the ratio of 4-amino-2-[18F]-fluorobenzoic acid to 4-amino-2-[19F]-fluorobenzoic acid, or incorporating additional components to enhance treatment efficacy. Variations of the inventive concept may also include the development of new PET imaging agent compositions for specific types of bacterial infections.

Potential Commercial Applications and Market

The present inventive concept has significant commercial potential in the medical imaging and pharmaceutical industries, particularly in the area of bacterial infection diagnosis and treatment. The target market includes hospitals, clinics, and research institutions, as well as pharmaceutical companies developing new treatments for bacterial infections.

CPC Classifications

SectionClassGroup
A A61 A61B6/037
A A61 A61K51/0402
A A61 A61P31/04
C C07 C07B59/001
C C07 C07C227/12
C C07 C07C229/60

Field of Art

Molecular Imaging and Radiopharmaceutical Composition Design, specifically focused on PET imaging agents for bacterial infection detection, requiring advanced knowledge in radiochemistry, molecular biology, and medical imaging techniques

Person of Ordinary Skill (PHOSITA) Profile

A researcher with a PhD in radiochemistry or molecular imaging, experienced in fluorine-18 and fluorine-19 radioisotope chemistry, familiar with PET imaging agent development, and knowledgeable about bacterial infection diagnostic techniques

Obviousness Rationale

A PHOSITA would recognize that the PTD's dynamic ratio adjustment and treatment optimization represent predictable variations of the source patent's core composition. The disclosed method of tailoring the 4-amino-2-[18F]-fluorobenzoic acid to 4-amino-2-[19F]-fluorobenzoic acid ratio based on infection type is a logical extension of the existing compositional framework. These variations would be considered routine optimization within the established technological domain of radiopharmaceutical imaging agents.

Obvious Combinations & Variations

Source Patent Element
Fixed ratio ranges for 4-amino-2-[18F]-fluorobenzoic acid to 4-amino-2-[19F]-fluorobenzoic acid between 1:99 and 1:500
PTD Variation
Dynamic, real-time ratio adjustment based on specific bacterial infection characteristics
Obviousness Reasoning
A PHOSITA would recognize that ratio optimization is an inherent design parameter in radiopharmaceutical compositions, making dynamic adjustment a predictable engineering solution
Source Patent Element
Composition including 4-amino-2-[19F]-fluorobenzoic acid and an acceptable carrier
PTD Variation
Adding a real-time treatment efficacy monitoring system integrated with the imaging agent
Obviousness Reasoning
Incorporating diagnostic feedback mechanisms is a known technique in medical imaging, representing an obvious improvement to the existing compositional approach
Source Patent Element
Radiochemical purity requirement of at least 95% for 4-amino-2-[18F]-fluorobenzoic acid
PTD Variation
Reducing patient radiation exposure by at least 20% through refined compositional design
Obviousness Reasoning
Minimizing radiation exposure is a standard optimization goal in medical imaging, achievable through predictable modifications to isotope ratios and composition
Source Patent Element
Bacterial infection imaging composition with specific fluorinated compounds
PTD Variation
Developing specialized composition variants for different bacterial infection types
Obviousness Reasoning
Tailoring diagnostic agents to specific pathological contexts is a routine approach in medical diagnostics, representing an obvious design choice for a skilled practitioner
Source Patent Element
Basic PET imaging agent composition for bacterial infection detection
PTD Variation
Implementing a modular system for infection detection with enhanced diagnostic capabilities
Obviousness Reasoning
Expanding diagnostic functionality through systematic modularization is a predictable technological progression in medical imaging systems
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857352 and the disclosed variations, a person of ordinary skill in the art would find the claimed innovations obvious. The published technical disclosure demonstrates that the claimed compositional and methodological variations represent routine optimization and predictable extensions of the existing technological framework, thereby rendering potential patent claims obvious under 35 U.S.C. ยง 103.

Original Patent Information

Patent NumberUS 11,857,352
TitlePositron imaging tomography imaging agent composition and method for bacterial infection
Assignee(s)The Research Foundation for The State of University New York