Title:
FILTER
Document Type and Number:
WIPO Patent Application WO/2018/103376
Kind Code:
A1
Abstract:
A filter (10), comprising a proximal end (2), a distal end (1) and a main filter body connected between the proximal end (2) and the distal end (1), the main filter body comprising a first filter unit (3) and a second filter unit (4), both being mesh structures, as well as multiple intermediate connection posts (5) connecting the first filter unit (3) and the second filter unit (4); the intermediate connection posts (5) having provided thereon support posts (6, 7); a support post (6,7) comprising a transition segment (71) extending outward from an intermediate connection post (5), and a support segment (72) bent and extending from the transition segment (71) toward the proximal end (2); a tip of the support segment (72) being provided with a projecting part (20, 30, 40 ,50, 60) having a sleek outline, the part of an outline of a projecting part (20, 30, 40, 50, 60) transitioning to the support segment (72) being a smooth transition. The present filter (10) solves the problem of open support posts (6, 7) becoming entangled with one another during contraction or expansion of a filter (10), increasing usability of the filter (10) and ensuring a smooth surgical process, and the smooth outline of the projecting parts (20, 30, 40, 50, 60) greatly reduces likelihood of a support post (6, 7) puncturing a blood vessel.
Inventors:
CHEN ZHUO (CN)
JIA XIAOLE (CN)
LI ANNING (CN)
JIA XIAOLE (CN)
LI ANNING (CN)
Application Number:
PCT/CN2017/099027
Publication Date:
June 14, 2018
Filing Date:
August 25, 2017
Export Citation:
Assignee:
LIFETECH SCIENT SHENZHEN CO (CN)
International Classes:
A61F2/01
Foreign References:
| CN204909721U | 2015-12-30 | |||
| CN101389289A | 2009-03-18 | |||
| CN1384726A | 2002-12-11 | |||
| CN2710575Y | 2005-07-20 | |||
| CN104970900A | 2015-10-14 | |||
| US20050159771A1 | 2005-07-21 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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