Search International and National Patent Collections

1. (WO2018121019) NON-BLOOD-VESSEL CHANNEL GUIDEWIRE

Pub. No.:    WO/2018/121019    International Application No.:    PCT/CN2017/107643
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Oct 26 01:59:59 CEST 2017
IPC: A61M 25/09
Applicants: INNOVEX MEDICAL CO., LTD.
上海英诺伟医疗器械有限公司
Inventors: ZHENG, Zhongwei
郑忠伟
HUANG, Yunteng
黄云腾
YUAN, Qing
袁庆
WANG, Pan
王攀
YAN, Hang
严航
Title: NON-BLOOD-VESSEL CHANNEL GUIDEWIRE
Abstract:
Provided is a non-blood-vessel channel guidewire, comprising a core shaft (1) and a ball head (2) which are prepared with metal materials, wherein an outer diameter of an insertion end of the core shaft (1) is less than an outer diameter of a non-insertion end; the insertion end of the core shaft (1) is connected to the ball head (2); a plastic coated layer (3) is sheathed outside the core shaft (1); an outer diameter of the ball head (2) is greater than an outer diameter of an insertion end of the plastic coated layer (3); and the outer diameter of the ball head (2) is not greater than an outer diameter of a non-insertion end of the plastic coated layer (3). The guidewire, by means of using a ball head (2) with a diameter slightly greater than the plastic coated layer (3) at a far end, may effectively avoid the defects that the guidewire falls off in actual use, or the plastic coated layer (3) at the far end easily rolls up when inserted. The ball head (2) is made of metal material, has a relatively large outer diameter, and has great visibility under an endoscope and an X-ray. A doctor may clearly observe a puncture part reached by a front end of the guidewire, and the effect of avoiding a guidewire end from puncturing an inner wall of a cavity may be realised without the need for a positioning device.