Enhanced Phospholipid-Based Ultrasound Contrast Agents with Improved Stability and Formulation Control

This inventive concept provides a suite of direct improvements and enhancements to phospholipid-based ultrasound contrast agents, addressing the limitations of the original patent by introducing novel methods, systems, and devices that ensure the stability and optimal formulation of these agents.

The original patent disclosed methods for preparing phospholipid-based ultrasound contrast agents, but these methods were susceptible to divalent metal cations, leading to phospholipid precipitation and reduced agent efficacy. The new inventive concept addresses this limitation by introducing advanced formulation control, calcium-sensing modules, and precipitation prevention mechanisms.

The new inventive concept comprises a system for preparing phospholipid-based ultrasound contrast agents with a calcium-sensing module to detect and adjust calcium levels in the formulation, preventing precipitation of phospholipids. Additionally, the concept includes a method for optimizing the phospholipid composition of an ultrasound contrast agent by identifying a target phospholipid ratio and adjusting the formulation accordingly. A device for preparing lipid-encapsulated gas microspheres is also disclosed, featuring a microsphere formation module and a phospholipid precipitation prevention module. Furthermore, a method for enhancing the stability of phospholipid-based ultrasound contrast agents by adding a chelating agent to the formulation is described, as well as a system for real-time monitoring of phospholipid precipitation in ultrasound contrast agent formulations.

The new claims introduce novel and non-obvious solutions to the limitations of the original patent, including the use of calcium-sensing modules, precipitation prevention mechanisms, and chelating agents to ensure the stability and optimal formulation of phospholipid-based ultrasound contrast agents.

Alternative embodiments of the inventive concept could include the use of different types of sensors or detection methods for monitoring phospholipid precipitation, or the integration of the calcium-sensing module with other formulation control systems. Variations of the device for preparing lipid-encapsulated gas microspheres could include different microsphere formation modules or additional features for optimizing microsphere size and distribution.

The enhanced phospholipid-based ultrasound contrast agents and associated systems and devices have significant commercial potential in the medical imaging industry, particularly in applications requiring high-resolution ultrasound imaging, such as cardiovascular and cancer diagnostics.