Title:
PRECISION MEDICINAL SOLUTION FILTER
Document Type and Number:
WIPO Patent Application WO/2019/024827
Kind Code:
A1
Abstract:
A precision medicinal solution filter comprising: a filter body (1) provided within a syringe (2) or connected to a needle base of the syringe (2). The front extremity of the filter body (1) is a conical extremity (6); the rear extremity is a filter extremity (5). The filter body (1) comprises a filter block (8) and a floating plug (7) movably provided within the filter block (8). A filter cavity is formed inside the filter block (8). An annular filter membrane (9) is provided within the filter cavity. When the syringe is drawing a solution, the floating plug (7) moves to the top part of a floating plug channel (81) of the filter block (8), the solution enters the filter cavity via a blind hole (71) of the floating plug (7). When the syringe is discharging the solution, the floating plug (7) moves away from the top part of the floating plug channel (81) of the filter block (8). The solution of the filter cavity enters the blind hole (71) of the floating plug (7) via the annular filter membrane (9) and a peripheral channel of the filter block (8). The filter is inexpensive, filters safely, is convenient to use, and, during a dosing process, allows microparticles and sediments to be filtered directly when preparing the solution, thus achieving the effect of precision filtration and ensuring medicament use safety for a patient.
Inventors:
FU YUAN (CN)
YUAN ZHANG (CN)
ZHANG YIBO (CN)
JI ZHIFENG (CN)
JING CHUNXI (CN)
YUAN ZHANG (CN)
ZHANG YIBO (CN)
JI ZHIFENG (CN)
JING CHUNXI (CN)
Application Number:
PCT/CN2018/097643
Publication Date:
February 07, 2019
Filing Date:
July 27, 2018
Export Citation:
Assignee:
XIAN HUBANG FILTERING MEMBRANE NEW TECH CO LTD (CN)
ZHENGZHOU KANGJIA MEDICAL DEVICE CO LTD (CN)
ZHENGZHOU KANGJIA MEDICAL DEVICE CO LTD (CN)
International Classes:
A61M5/31; A61M5/178
Domestic Patent References:
| WO2017043830A1 | 2017-03-16 |
Foreign References:
| CN204446607U | 2015-07-08 | |||
| CN107469196A | 2017-12-15 | |||
| KR20180016137A | 2018-02-14 | |||
| US20160317748A1 | 2016-11-03 |
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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