Title:
折畳まれた形状において内方に位置決めされたアンカーフックを有する回収可能な大静脈フィルタ
Document Type and Number:
Japanese Patent JP4918637
Kind Code:
B2
Abstract:
The present invention involves a removable filter for capturing thrombi in a blood vessel. The filter comprises a plurality of primary struts and a plurality of secondary struts. The plurality of primary struts has first ends attached together along a longitudinal axis. Each primary strut has an arcuate segment extending from the first end to an anchoring hook. The primary struts are configured to move between an expanded state for engaging the anchoring hooks with the blood vessel and a collapsed state for filter retrieval or delivery. Each primary strut is configured to cross another primary strut along the longitudinal axis in the collapsed state such that each anchoring hook faces the longitudinal axis away from the blood vessel for filter retrieval or delivery. The plurality of secondary struts has connected ends attached together along the longitudinal axis. The secondary struts extend therefrom to free ends to centralize the filter in the expanded in the blood vessel.
Inventors:
Osborne Thomas A
Morgard Nielsen Arne
Hendricksen Pell
Heminkusen Alan
Morgard Nielsen Arne
Hendricksen Pell
Heminkusen Alan
Application Number:
JP2007508643A
Publication Date:
April 18, 2012
Filing Date:
April 18, 2005
Export Citation:
Assignee:
COOK MEDICAL TECHNOLOGIES LLC
International Classes:
A61B17/00; A61F2/01; A61F2/06
Domestic Patent References:
| JPH08299456A | 1996-11-19 | |||
| JP2002525183A | 2002-08-13 | |||
| JP2003523805A | 2003-08-12 |
Foreign References:
| US4425908A | 1984-01-17 |
Attorney, Agent or Firm:
Shigeru Ito