Title:
REUSABLE INDWELLING CANNULA COMPONENT FOR PREVENTING BLOOD BACKFLOW
Document Type and Number:
WIPO Patent Application WO/2018/133017
Kind Code:
A1
Abstract:
An open indwelling needle, particularly a reusable indwelling cannula component for preventing blood backflow. The open indwelling needle comprises: a cannula (4) and a cannula holder (1). The cannula (4) is inserted and fixed to the cannula holder (1). A rear end of the cannula holder (1) is open. The reusable indwelling cannula component for preventing blood backflow also comprises a normally closed valve (2) and a switch component (3) for opening the normally closed valve (2). The normally closed valve (2) is inserted and fixed to a rear internal cavity of the cannula holder (1). The cannula (4) is located in front of the normally closed valve (2). A needle before puncture is disposed through a valve cavity of the normally closed valve (2). When compared to the prior art, the present invention has the following advantages: being easy to use, preventing clotting and blood overflow to the outside, and a simple structure. The normally closed valve (2) can be reused, meeting the need to repeatedly change an infusion connector for an indwelling needle.
Inventors:
CHEN YONGXI (CN)
Application Number:
PCT/CN2017/071834
Publication Date:
July 26, 2018
Filing Date:
January 20, 2017
Export Citation:
Assignee:
FUJIAN BESTWAY MEDICAL POLYMER CORP (CN)
International Classes:
A61M5/158
Domestic Patent References:
| WO2013051242A1 | 2013-04-11 |
Foreign References:
| CN201855466U | 2011-06-08 | |||
| CN202605427U | 2012-12-19 | |||
| CN106029152A | 2016-10-12 | |||
| US20020128604A1 | 2002-09-12 | |||
| US20080208132A1 | 2008-08-28 | |||
| CN203694221U | 2014-07-09 | |||
| CN205832299U | 2016-12-28 |
Attorney, Agent or Firm:
FUZHOU ZHANHUI PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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