Title:
CYLINDER PUMP
Document Type and Number:
WIPO Patent Application WO/2011/083892
Kind Code:
A2
Abstract:
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.
Inventors:
LEE SANG BIN (KR)
LEE KUN-HYUNG (KR)
LEE JEONG JU (KR)
CHOI JAE SOON (KR)
LEE SEUNG WON (KR)
LEE KUN-HYUNG (KR)
LEE JEONG JU (KR)
CHOI JAE SOON (KR)
LEE SEUNG WON (KR)
Application Number:
PCT/KR2010/002152
Publication Date:
July 14, 2011
Filing Date:
April 08, 2010
Export Citation:
Assignee:
MEINNTECH CO LTD (KR)
LEE SANG BIN (KR)
LEE KUN-HYUNG (KR)
LEE JEONG JU (KR)
CHOI JAE SOON (KR)
LEE SEUNG WON (KR)
LEE SANG BIN (KR)
LEE KUN-HYUNG (KR)
LEE JEONG JU (KR)
CHOI JAE SOON (KR)
LEE SEUNG WON (KR)
International Classes:
A61M5/142; A61M5/145
Foreign References:
| KR100196279B1 | 1999-06-15 | |||
| KR20080085911A | 2008-09-24 | |||
| KR0127834B1 | 1998-04-03 | |||
| US4705464A | 1987-11-10 | |||
| JPH0542204A | 1993-02-23 |
Other References:
See references of EP 2522381A4
Attorney, Agent or Firm:
HWANG, E-Nam (KR)
황이남 (KR)
황이남 (KR)
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Claims: