Patent ID: 6423037
Filing Date: 2002-07-23
Classification: A61M

Abstract:
A reduced-pressure syringe comprising:a generally cylindrical-shaped cartridge having a pair of ends in which one of the ends is openably sealed; a gasket having a pair of end faces, said gasket slidably provided on a side of the other of the ends of the cartridge, thereby defining a sealed space, where a freeze-dried agent is accommodated in the sealed space, and said gasket having, in its outer circumferential surface, a recessed groove continuing from one of the end faces of the gasket on the side of the one of the ends of the cartridge toward the other of the end faces thereof on the side of the other of the ends thereof to an intermediate position therebetween; and a sealing cap which is to be engaged with an end face of the cartridge on the side of the other of the ends and which seals the side of the other threreof, wherein a pressure in the sealed space is held lower than atmospheric pressure.