Lee, Sang Bin,Lee, Kun-Hyung,Lee, Jeong Ju,Choi, Jae Soon,Lee, Seung Won
申请号：
AU2010340482
公开号：
AU2010340482A1
申请日:
2010.04.08
申请国别(地区):
AU
年份:
2012
代理人:
摘要：
The present invention relates to a simple and small cylinder pump, which can stably supply a medical fluid regardless of the installed height of a liquid container or a blood bag. The cylinder pump includes an upper casing, and a lower casing coupled to the upper casing. An upper rotation member is rotatably inserted in the upper casing. A lower rotation member slidingly contacting the upper rotation member is rotatably inserted in the lower casing. An inner wall of the upper casing, a lower outer surface of the upper rotation member, an inner wall of the lower casing, and an upper outer surface of the rotation member constitute a cylinder having a single-tube shape. Plungers are installed on the upper rotation member and on the lower rotation member, respectively, and rotate in the cylinder, the ends of which are closed. The cylinder is provided with an injection tube for injecting a medical fluid, and a discharge tube for discharging a medical fluid, the tubes protruding from the outer surfaces of the upper and lower casings. A central angle of the injection tube and the discharge tube about a center of rotation ranges from a central angle θ of one plunger to two times the central angle θ. The upper rotation member and the lower rotation member are connected to a driving device, and rotate independently of one another.
