Title:
AN AUTOMATIC FLUID-CHANGING INFUSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/014520
Kind Code:
A1
Abstract:
An automatic fluid-changing infusion device includes a infusion tube inserting
needle, a drip chamber(9), a drip speed controller(11), a infusion tube and a
needle(12), wherein there are two or more inserting needles, each inserting
needle is conneted in series by an aeration tube; the lower portion of the inserting
needle is connected to the infusion tube, each infusion tube is converged to single
tube at one of the infusion tubes and this infusion tube is connected to the drip
chamber; the inner of the inserting needle has two independent passages, the
passage connected to the aeration tube is gas passage, the passage connected
to the infusion tube is fluid passage, the gas passage of the next inserting needle
is connected with the fluid passage of the previous inserting needle via the aeration
tube between the inserting needles, a gas-importing tube with a miniature filter
is connect to the first inserting needle; the inner of the drip chamber has a global
float(10), the diameter of the float is 4-5 mm.
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Inventors:
ZHOU ZHIGUANG (CN)
Application Number:
PCT/CN2006/001884
Publication Date:
February 08, 2007
Filing Date:
July 28, 2006
Export Citation:
Assignee:
ZHOU ZHIGUANG (CN)
International Classes:
A61M5/14
Foreign References:
| CN2691606Y | 2005-04-13 | |||
| CN2259911Y | 1997-08-20 | |||
| US6485454B1 | 2002-11-26 |
Attorney, Agent or Firm:
BEIJING BEIXIN-ZHICHENG INTELLECTUAL PROPERTY AGENT CO., LTD (Xicheng District, Beijing 5, CN)
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