The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2013
Filed:
Jul. 06, 2012
Sang Bin Lee, Seoul, KR;
Kun-hyung Lee, Seoul, KR;
Jeong Ju Lee, Seoul, KR;
Jae Soon Choi, Gyeonggi-do, KR;
Seung Won Lee, Gyeonggi-do, KR;
Sang Bin Lee, Seoul, KR;
Kun-Hyung Lee, Seoul, KR;
Jeong Ju Lee, Seoul, KR;
Jae Soon Choi, Gyeonggi-do, KR;
Seung Won Lee, Gyeonggi-do, KR;
Meinntech Co., Ltd., Gyeonggi-Do, KR;
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.