Patent ID: 9421319
Filing Date: 2016-08-23
CPC Classification: A61M,B01L,G01N

Claim Text:
1. A blood separation container comprising: a main body defining an inner space divided into an upper fluid chamber and a lower fluid chamber; an upper cover sealing the upper fluid chamber; a lower cover ascending along an inner peripheral surface of the lower fluid chamber in such a state that an outer peripheral surface of the lower cover comes into close contact with the inner peripheral surface of the lower fluid chamber; a fluid collection part which is formed between the upper fluid chamber and the lower fluid chamber and includes a fluid passage protruding upward from a central portion to communicate the upper fluid chamber and the lower fluid chamber; a release prevention member which is coupled to an outer peripheral surface of the main body and includes a first coupling portion and a second coupling portion that communicates with the first coupling portion, a thread being formed on an inner peripheral surface of the first coupling portion so as to be coupled to a thread formed on a lower outer peripheral surface of the main body, and a thread being formed on an inner peripheral surface of the second coupling portion so as to have a diameter less than a diameter of the first coupling portion; and an ascending member which is inserted into and coupled to the second coupling portion of the release prevention member, a portion of which is screwed to the second coupling portion of the release prevention member in a bolt structure, and which is carried in the lower fluid chamber of the main body and varies in a variation in a volume of the lower fluid chamber by ascending the lower cover coming into close contact with the inner peripheral surface of the lower fluid chamber.