FILTER

WIPO Patent Application WO/2017/113627

A1

Provided is a filter (100, 100a, 100b), comprising a main-body part (10, 10a, 10b) having a proximal end (101, 101a, 101b) and a distal end (102, 102a, 102b); the main-body part (10, 10a, 10b) comprises a first filtration mesh (11, 11a, 11b) located between the proximal end (101, 101a, 101b) and the distal end (102, 102a, 102b) and adjacent to the proximal end (101, 101a, 101b), and a support segment (13, 13a, 13b) connected to the first filtration mesh (11, 11a, 11b) and located between the first filtration mesh (11, 11a, 11b) and the distal end (102, 102a, 102b); the support segment (13, 13a, 13b) comprises a plurality of first support bars 131, 131a, 131b); the first support bars (131, 131a, 131b) extend approximately lengthwise along the central axis parallel to the filter (100, 100a, 100b); the ratio of the length of the projection of each first support bar (131, 131a, 131b) in the plane of the longitudinal central axis parallel to the filter (100, 100a, 100b) to the outer diameter corresponding to the support segment (13, 13a, 13b) after the filter (100, 100a, 100b) is naturally released is greater than or equal to 1/10 and is smaller than or equal to 4/5. The filter (100, 100a, 100b) ensures that the stability of the filter (100, 100a, 100b) after implantation into a blood vessel is good, and also ensures that when the filter (100, 100a, 100b) is removed after having been implanted for a period of time, no damage is caused to the inside wall of the blood vessel.

LI ANNING (CN)
CHEN ZHUO (CN)
JIA XIAOLE (CN)

PCT/CN2016/085736

July 06, 2017

June 14, 2016

Click for automatic bibliography generation  

LIFETECH SCIENT (SHENZHEN) CO LTD (CN)

A61F2/01

CN205494082U	2016-08-24
CN101147705A	2008-03-26
CN104970900A	2015-10-14
CN2710575Y	2005-07-20
CN1739466A	2006-03-01
US20050080449A1	2005-04-14

ADVANCE CHINA IP LAW OFFICE (CN)

View/Download PDF      PDF Help

Previous Patent: DELIVERY SYSTEM AND LUMEN STENT SYSTEM

Next Patent: FILTER