Ronggen Wan

Title: Ronggen Wan and His Intranasal Medication Delivery Device.

Introduction

Ronggen Wan is an inventor based in Chino Hills, California, and is associated with Amphastar Pharmaceuticals, Inc. His patent work includes an intranasal device designed to deliver medication solution.

Latest Patents

Wan is credited with 1 patent, titled “Intranasal Delivery Device for Delivering a Medication Solution.” The invention is designed to deliver between 0.2 mL and 1.0 mL of medication through an intranasal route. Its components include an injector barrel with circumferential slit openings, a lengthwise center guide, and a cannula positioned to communicate with the medication solution.

The device also includes a vial that couples with the injector barrel. A pliable rubber stopper with multiple seal rings is configured to create gas-phase-impermeable seals against the vial’s interior surface, while the cannula passes through the stopper. During actuation, a base can reversibly engage with one or more slit openings as it is compressed toward the injector barrel.

Career Highlights

Wan’s documented patent contribution focuses on the design of an intranasal medication delivery device. The invention’s features address the delivery volume, component alignment, vial sealing, and actuation mechanism.

Collaborations

Wan is associated with Amphastar Pharmaceuticals, Inc. The available information identifies this company connection but does not specify particular collaborators or joint development arrangements.

Conclusion

Ronggen Wan’s patent describes a specialized intranasal delivery device that combines a guided cannula, a sealed medication vial, and a mechanically actuated injector.