Patent ID: 7641639
Filing Date: 2010-01-05
Classification: A61M

Abstract:
1. A body fluid suction reservoir comprising: a bag element having a fluid collecting port for taking in body fluid; a first plate and a second plate arranged in the bag element so as to face each other; an elastic member disposed between the first plate and the second plate; and a lock body attached to the second plate, wherein the lock body comprises a hook part and an operation part for displacing the hook part, the hook part is adapted to engage with a hook engagement surface of the first plate to fix the first plate and the second plate, so that the elastic member is compressed and held between the first plate and the second plate, the operation part is operated to displace the hook part in parallel with a surface of the second plate, so that fixing of the first plate and the second plate are released to generate negative pressure in the bag elements, the first plate comprises a first shell part forming a part of an outline of the body fluid suction reservoir, and a core part provided on a side of the shell part facing the second plate, the second plate comprises a second shell part forming a part of the outline of the body fluid suction reservoir, at least a part of the lock body is located on a side of the second shell part facing the core part, so that the elastic member is compressed and held by the core part and at least the part of the lock body, and the core part and the lock body comprise material having higher hardness than the first shell part and the second shell part.