PUNCTURE NEEDLE ASSEMBLY AND BALLOON CATHETER KIT

WIPO Patent Application WO/2020/191807

A1

A puncture needle assembly (20) and a balloon catheter kit. The puncture needle assembly (20) comprises a puncture needle (21) and an outer sheath (22), the puncture needle (21) comprises a needle core (211) and a needle core seat (212), and one end of the needle core (211) is fixedly connected to the needle core seat (212). The outer sheath (22) comprises a sheath body (221) and an outer sheath seat (222), one end of the sheath body (221) is fixedly connected to the outer sheath seat (222), the needle core (211) can be inserted into the sheath body (221), and the needle core seat (212) and the outer sheath seat (222) can be connected together. The connection between the needle core seat (212) and the outer sheath seat (222) prevents the needle core (211) from retreating during puncturing with the puncture needle assembly (20), and also prevents the needle core (211) from driving the outer sheath (22) to displace in human tissue due to torsion when withdrawing the needle core (211) upon completion of the puncture, thereby reducing damage to human tissue and nerves by the puncture needle assembly (20) during puncturing with and withdrawal of the needle core (211).

GUAN GUOFENG (CN)
LI WUYANG (CN)
XU YONG (CN)

PCT/CN2019/081523

October 01, 2020

April 04, 2019

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SHENZHEN SHINEYARD MEDICAL DEVICE CO LTD (CN)

A61B17/34; A61M25/10

WO2008157222A2

2008-12-24

CN107198571A	2017-09-26
JP2016168228A	2016-09-23
CN204319488U	2015-05-13
CN205054372U	2016-03-02
CN205626040U	2016-10-12
US5011478A	1991-04-30

LIUJIA CHINA IP LAW OFFICE (CN)

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