Patent Issued for Uniformly pressing micro-valve system for controlling path of fluids in miniaturized capillary connections and methods of fabrication (USPTO 11931741).

Princeton Biochemicals Inc. has been granted a patent for a micro-valve system that regulates fluid flow in miniaturized capillary connections. The system utilizes two small diameter capillaries connected by a flexible plastic tube, which is protected by thicker plastic tubes. A uniform-pressure pressing system is employed to block fluid passage within the capillaries, with the opening and closing mechanism controlled by applying or releasing external pressure. This innovation addresses the challenges of sample preparation in bioanalysis and has potential applications in chromatography and electrophoresis. The patent provides a comprehensive description of the micro-valve system, including its components and claims. [Extracted from the article]