Nasal secretion sample collecting and preserving device and using method thereof

The invention discloses a nasal secretion sample collection and preservation device and a using method thereof.The nasal secretion sample collection and preservation device comprises a collection assembly and a preservation assembly, the collection assembly is composed of a handheld part and a secretion adsorption part, the handheld part is made of a common PVC plastic material, and the secretion adsorption part is arranged at the tail end of the handheld part; an adsorption material with the water absorption rate of 100-500 [mu] l/cm < 3 > and the release rate of 100-400 [mu] l/cm < 3 > is made into a cylindrical structure or a rod-shaped structure; the retention assembly is composed of an extrusion tube and a collection tube, the extrusion tube is a needle tube made of a common PVC plastic material, the inner diameter of the extrusion tube is tightly attached to the outer diameter of the collection assembly without air leakage, and the collection tube is a glass tube containing a protein protective agent. W